Introduction
What kind of institutional response is expected when a technological breakthrough suddenly increases the value of a common-pool resource? We answer this question by considering a middle-of-the-nineteenth-century event that is underexplored by students of institutions: the appropriation of a biological resource to produce natural rubber – caoutchouc – from Brazil to the Southeast Asian British colonies. This British appropriation is a paradigmatic case of what is now termed biopiracy (e.g., Robinson, Reference Robinson2010), although no formal institutions governed such acts at the time. It profoundly transformed rubber’s ‘institutional structure of production’ (Coase, Reference Coase1992), spawning the global rubber industry: production shifted from extraction of natural rubber in the wild in the Amazon basin under informal and coercive labour regimes to large-scale cultivation of natural rubber on plantations in Southeast Asia in the manner of commercial crops (such as cacao, coffee, corn, cotton, rice, tea, tobacco). This shift quickly outpaced wild-harvesting methods (Resor, Reference Resor1977; Santos, Reference Santos1980).
Technological shocks have historically reshaped resource governance. Often, the shocks have triggered something approximating a classic ‘tragedy of the commons’. Two cases come to mind: the near extinction of the American bison when previously unemployed hunting technologies (e.g., high-calibre rifles) and expanding markets transformed a once-abundant common-pool resource into a scarce one (Isenberg, Reference Isenberg2000); and the Newfoundland cod fisheries, where industrial trawling devastated once-abundant stocks (Finlayson and McCay, Reference Finlayson, McCay, Berkes and Folke2000). In these and similar cases, technological progress amplified resource access and extraction while institutional adaptation was outpaced. Even superior technologies may fail to deliver net expected benefits when institutions do not keep up, effectively becoming bottlenecks for adaptation (Allen and Leeson, Reference Allen and Leeson2015). Yet not all technological shocks precisely follow this path. For some common-pool resources, such as those economically profitable plants and trees the reproduction of which is based on seeds, ‘non-excludability’ can lead to appropriation without necessarily leading to a tragedy (or quasi-tragedy) of the commons. The case of Brazilian rubber represents this other path: appropriation without depletion.
The nineteenth-century chemical innovation of vulcanisation, which physically stabilises rubber so that elasticity is retained across a wide range of temperatures, significantly increased rubber’s economic value, reconfiguring incentives for both producing and importing countries. It is thus intriguing to consider the twin issues concerning (a) how vulcanisation catalysed institutional change in rubber production, and (b) what this change reveals about the dynamics of biopiracy and resource governance. Or, to say the same thing differently, we investigate ‘induced institutional innovation’ (Hayami and Ruttan, Reference Hayami and Ruttan1985): the shifts in relative factor scarcities and technological opportunities that provoke institutional adjustments on both the demand side and the supply side (Libecap, Reference Libecap1993).
Our investigation is an analytic narrative (Levi and Weingast, Reference Levi, Weingast, Widner, Woolcock and Nieto2022). Maintaining the rational choice postulate, the method combines game theory and institutional economics with detailed factual and historical evidence. Its value for a unique case is threefold. First, explicit formal theorising compels identification of a small number of variables as central, the articulation of precise causal statements, and a rigorous account of how actors behaved given their specific constraints and beliefs. Second, the unique case allows modelling tailored to local institutional detail, uncovering the strategic logic behind a specific historical outcome in a way that thinner analyses cannot. Third, we can discipline the narrative with counterfactual analysis. All three are germane because the rubber episode involves multiple interwoven factors whose conjunctions other types of analysis would struggle to disentangle. The primary sources are statistics, contemporary firsthand accounts, and the secondary literature on the Amazon rubber industry.
We proceed in three steps. First, we show that vulcanisation shifted rubber from a limited-use product, developed and used by the Amazon’s Indigenous Peoples, into a globally demanded industrial input (e.g., Schultes, Reference Schultes1993). This shock transformed the economic calculus about access to natural resources, which include biological ones, especially for industrial powers like Great Britain during the Second Industrial Revolution.
Second, we describe how the broader institutional environment changed in the wake of the shock. Brazil, then the dominant supplier of natural rubber, had no formal legal protection over rubber seeds, seedlings, and trees (e.g., Loadman, Reference Loadman2005: 92). Believing that rubber trees could thrive only in the Amazonian ecological niche, Brazilian entrepreneurs, government officials, and merchants alike underestimated the likelihood and possible consequences of rubber trees growing elsewhere through transplantation (Weinstein, Reference Weinstein1983: 219–220). In contrast, the British (e.g., botanists, officers, traders) actively sought alternatives to Brazilian rubber supply dependency (Brockway, Reference Brockway1979). When the British smuggled tens of thousands of seeds to Asia in 1876, they did so in a decision-making context where strategies were shaped by asymmetric information, divergent risk perceptions, and a vacuum in formal institutions. Since the Brazilians underestimated the viability of cultivating rubber elsewhere, and the British were willing to risk clandestine action for potential high returns, appropriation was favoured. This outcome was not inevitable, but it was somewhat predictable given the decision-making context.
Third, we analyse the appropriation’s consequences. Reallocating production to Southeast Asia collapsed Brazil’s global dominance but enabled new institutional structures of production grounded in defined rights, cultivation (Brockway, Reference Brockway1979), and a ‘disciplined system of labor and intensive use of land’ (Frank and Musacchio, Reference Frank, Musacchio, Topik, Marichal and Frank2006: 280). Though detrimental to Brazil, this shift ultimately yielded greater global output, lower prices, and net welfare gains. Alternatively put, biopiracy’s unintentional result was a positive-sum game: the aggregate increase in output, the price reductions, and the expansion of downstream industrial uses across multiple sectors that followed from new institutional structures of production exceeded the localised Brazilian welfare losses.
By considering how some types of common-pool resources (Ostrom, Reference Ostrom1990) can be vulnerable to appropriation but not necessarily to overuse, we contribute to several literatures. Recognising the positive technological shock of vulcanisation as the trigger, we engage with both the process (Desierto and Koyama, Reference Desierto, Koyama, Ménard and Shirley2025) and consequences (Acemoglu et al., Reference Acemoglu, Egorov, Sonin, Bisin and Federico2021) literatures about institutional change by building on two views: institutions-as-rules, namely those evolving, humanly devised constraints shaped by shifting incentives, beliefs, and learning (North, Reference North1990); and institutions-as-equilibria, understood as self-reinforcing yet adaptable patterns of behaviour sustained by shared expectations among purposeful actors (Greif and Laitin, Reference Greif and Laitin2004). The former view highlights how rules, both formal and informal (Hodgson, Reference Hodgson2025), come about in response to actors’ interests and needs, while the latter explains how such rules persist or change through equilibrium dynamics that endogenise motivation and enforcement (Kingston and Caballero, Reference Kingston and Caballero2009). Integrating these views allows us to account for both the design and adaptation of institutions-as-rules and for the behavioural mechanisms that sustain them in equilibrium. In doing so, we emphasise how institutional change emerges endogenously from the feedback between actors’ beliefs and incentives, while also being accelerated by shocks and unintended consequences.
Moreover, Schlager and Ostrom (Reference Schlager and Ostrom1992) establish appropriation as one of the core dimensions of property rights over common-pool resources, between mere access and withdrawal rights and higher-order rights of management, exclusion, and alienation. In some group settings, informal community-based governance can sustain withdrawal and appropriation rights, as it did in the Amazon before the commercial value of rubber rose. However, exclusion rights require formal legal institutions to be enforceable. Brazil had the former but failed to establish the latter in time. It was precisely this institutional ‘interregnum’ – the absence of any formal rule about accessing rubber trees, seedlings and seeds – that the British exploited.
Lastly, biopiracy emerges as a historically contingent notion whose meaning and impact can also depend on the institutional conditions of property, enforcement, and innovation. Like many other common-pools, Brazil’s Amazon rainforest prior to the biopiracy did not present well-defined rights over its resources. In these cases, as experiments have also shown, rivalry in use can challenge spontaneous cooperation and informal resource governance (Ostrom et al., Reference Ostrom, Gardner and Walker1994). Rivalry can instead create opportunities for ‘rent seizing’. Unlike rent seeking, where unproductive behaviour prospers within existing institutions, rent seizing occurs when powerful actors, in the presence of a positive shock, interfere with, completely bypass, or even dismantle institutions to secure rents for themselves or others (M. Ross, Reference Ross2001). Resource booms can weaken rather than strengthen institutions, and the rubber boom did precisely this, entrenching myopic governance patterns that persisted well beyond the boom itself. In our context, biopiracy transpires mainly as a conscious act of bypassing informal institutions, facilitated by Brazil’s weak formal safeguarding of indigenous resources and the rivalrous rent dynamics that vulcanisation set in motion.
Vulcanisation and the Brazilian rubber boom
By the 19th century, Brazil emerged as a dominant player in world resource markets. Coffee was one important source of such dominance; natural rubber was another. Natural rubber begins its life cycle as a latex, a biopolymer in the form of a milky white fluid that is collected by tapping the bark of Hevea brasiliensis, also known as the Pará rubber tree, of the Spurge Family (Euphorbiaceae). Hevea is indigenous to the Amazon rainforest.
The 1839 breakthrough of vulcanisation – hardening natural rubber with sulphur at high temperatures – significantly expanded rubber’s uses. Vulcanisation was pioneered by the American inventor Charles Goodyear, who first demonstrated the process in 1839; Thomas Hancock independently obtained a British patent for the process four years later (Guise-Richardson, Reference Guise-Richardson2010). Before vulcanisation, rubber would melt at higher temperatures and crack at lower ones, greatly limiting its practical uses. Vulcanisation thus served as a technological push for manufacturing.
After vulcanisation, rubber, both natural and synthetic (polymers from petroleum, from the early 1900s), became a versatile material with a great number of industrial and consumer uses (e.g., gaskets, hoses, insulation panels, surgical gloves). With time, vulcanisation influenced a great number of – pre-existing and subsequent – industries and industrial paths (aerospace, agriculture, clothing, construction, medicine, transport, etc.). Figure A1 in the Online Appendix contains early illustrations of some of the first uses of natural rubber.
Vulcanisation, therefore, widely increased the possible applications of rubber, whose demand increased dramatically thereafter. Britain’s rubber imports were just 23 tons in 1830, rising to 68 tons in 1845, 209 tons in 1850, and approximately 1,818 tons in 1855. Concurrently, the United States, another important market and emergent world player, imported around 1,000 tons in 1850 and 3,000 tons in 1865 (Santos, Reference Santos1980: 49). One important factor that greatly contributed to increasing the demand for world rubber was its growing use for tyres (bicycle, airplane, and especially automobile ones).
Against this backdrop, Brazil became the world’s foremost supplier of natural rubber, enjoying a prolonged position of global market dominance. Circa 1850–1910, Brazil exercised substantial market power over rubber importers (mainly Europe and the US), setting prices well above competitive levels. Prices were indeed steep, soon earning latex the moniker of ‘white gold’ (Jackson, Reference Jackson2008). These steep prices reflected two types of rents that Brazil enjoyed from Hevea during this period: Ricardian rents from the Amazon’s natural endowment as Hevea’s ecological niche, and monopoly rents from its dominant supplier position.
Although Brazil was not effectively a monopoly, it controlled the natural rubber trade in practice. The trajectory of rubber prices in London and Liverpool between 1877 and 1906 reflects the sustained upward pressure consistent with Brazil’s dominant market position (Jünger, Reference Jünger and Aguti1942: 273–274). Rubber prices in Britain more than doubled over this period (Figure A2), corresponding to the increasing demand as more uses for rubber were found. The initial spike in 1882–1883 likely stemmed from production bottlenecks in Brazil: the trees in the northern Brazilian state of Pará had been over-tapped and were not yielding much latex, and labour was scarce (Resor, Reference Resor1977: 344–345). From there, the next steep price increase is traceable to the popularity of bicycles with rubber tyres in the 1890s (Frank and Musacchio, Reference Frank, Musacchio, Topik, Marichal and Frank2006: 281). Prices rose steeply over the entire period, with the upward trend accelerating from the late 1890s onward and continuing notwithstanding the addition of commercial Hevea cultivation from 1903 – across both wild and cultivated series and across average and price ranges. This points to the strength of underlying demand rather than merely supply constraints in wild Amazonian extraction. The trend culminates in a sharp price peak in 1904–1906, reflecting the surge in automobile tyre demand. The price trend reinforced confidence in natural rubber as a commercial crop (Royal Botanic Gardens, Kew, 1906: 242). Estimates show that from 1870 to 1910, global rubber demand became less elastic over time. Even with British demand elasticity estimated at around −1.54 (Fernandes, Reference Fernandes2009: 196, 274), the sheer momentum of industrial expansion meant that rising prices could not effectively curtail the overall quantity demanded.
This dominant position attracted the attention of Britain and its empire, whose rapidly growing economy during the Second Industrial Revolution needed secure and affordable access to rubber. Given this need, in 1876, at least 70,000 Hevea brasiliensis seeds (Figure A3) were smuggled and transplanted to the British Empire’s colonies in Southeast Asia to grow like commercial crops. The transplant proved successful, quickly outpacing Brazil’s wild-harvesting methods (Santos, Reference Santos1980) and crumbling its world dominance in natural rubber (Weinstein, Reference Weinstein1983: 218). The biopiracy of rubber seeds, therefore, represents a crucial moment in world competition for resource dominance.
Before the biopiracy, the Hevea trees were present only in the wild of the Amazon as common-pool resources, goods with low excludability and high subtractability. As Henry Walter Bates (Reference Bates1873: 73), the British naturalist who explored the Amazon rainforest for 11 years (1848–1859), reports in his memoirs: the ‘trees seem to be no man’s property hereabout. The people we met with told us they came every year to collect rubber’. During this period, individual trees were damaged or killed by rudimentary latex harvesting techniques. Yet, given the vastness of the supply and the still-limited demand, there was no overexploitation – and thus no tragedy of the commons of the kind that typically follows from rivalry over a high-value resource. Rubber followed a different path, as we shall show.
The institutional structure of production in Brazil was embedded in ‘rules in use’ (Ostrom, Reference Ostrom2005) – locally enforced norms and practices rather than legislation, characteristic of informal property regimes that emerge where formal enforcement is weak, monitoring is costly, and resources are spatially diffused (Murtazashvili and Murtazashvili, Reference Murtazashvili and Murtazashvili2024). Within this structure, extraction techniques were not cost-efficient, nor was labour remunerated at or above marginal product. Rubber barons (seringalistas in Portuguese) – wealthy, politically connected Brazilian entrepreneurs who owned, and at times informally presided over, different rubber tree areas of the rainforest as estates (seringais) – employed this labour. This labour regime was essentially a type of debt-peonage under difficult working conditions, also at risk of disease, without attendant medical care, and death (Barham and Coomes, Reference Barham and Coomes1994; C. Ross, Reference Ross2017). More broadly, the institutional structure of production was short-sighted and relied on oppressive forms of work organisation (Almeida, Reference Almeida1990). As such, it was extractive and did not stimulate the adoption of new technology and economic growth (Acemoglu, Reference Acemoglu2025).
At another level, fully understanding this institutional vacuum requires distinguishing between two distinct margins of the Hevea resource. Locally, the extraction of physical latex functioned as a traditional common-pool resource, characterised by high subtractability and low excludability. However, the seeds themselves operated on a fundamentally different margin. The removal of 70,000 seeds did not deplete the Amazon’s wild baseline or subtract from its biological capacity to reproduce the tree; the appropriation was akin to the diffusion of non-rivalrous genetic information or unpatented intellectual property. The local rules in use did not contemplate the need to explicitly safeguard Brazil’s dominant position over this non-rivalrous biological resource through the legislation of ‘rules in form’ (Ostrom, Reference Ostrom2005). Brazilian government officials, merchants, and rubber barons all believed that the natural characteristics of the tree and the ecology of the rainforest would, by themselves, be sufficient to shelter its rubber industry (Weinstein, Reference Weinstein1983: 219–220). In 1897, William Algernon Churchill, British Consul in Pará, also reported this Brazilian belief: no ‘cultivation of rubber trees worth mentioning has been attempted in the Amazon region. It is considered useless to invest capital in cultivation so long as the Amazonian forests show no sign of exhaustion’ (Royal Botanic Gardens, Kew, 1898: 242).
However, events would not bear out this belief. The formal institutional gap from legislation and vulcanisation’s positive technological shock prompted Britain to appropriate rubber seeds with the intention of growing Hevea like any other crop. The biopiracy led Brazil to introduce legislation governing and disciplining the export of rubber plants, seedlings and seeds – 1884’s export duties on seeds and seedlings by the state of Amazonas, federal government’s 1912 Rubber Defence Law, and 1918’s complete export ban (Bradford Burns, Reference Bradford Burns1965: 420–421; Loadman, Reference Loadman2005: 92). But the legislation was tardy: the biopiracy significantly contracted Brazil’s economy while ultimately also unintentionally contributing to more efficient rubber production, increasing output and lowering prices worldwide.
Vulcanisation hence reshaped the entire rubber industry as well as influenced and created other industries worldwide. One country’s formal institutional vacuum, our investigation reveals, becomes another country’s rent-seizing opportunity.
Seeds of change
Biopiracy
While the term biopiracy was only coined in 1993, the act is as old as civilisation. For example, in an early recorded case from 1482 BC, Ancient Egypt’s Queen Hatshepsut seized thirty-one frankincense-yielding Boswellia trees during an East African raid. The practice accelerated during the Age of Exploration and the subsequent colonial period from the 15th to the 18th century, as European powers extensively collected and geographically diffused a vast array of animals and plants, including spices and tea. These actions laid the groundwork for what we now recognise as biopiracy (Robinson, Reference Robinson2010).
Hevea brasiliensis
Over 200 plant species worldwide contain the hydrocarbons needed for rubber production. Starting in 1860, research into the merits of different latex-producing plants concluded that Hevea brasiliensis is the one whose latex leads to the best quality rubber (Royal Botanic Gardens, Kew, 1898; Santos, Reference Santos1980: 229), rendering it the only member of the genus Hevea of commercial importance (Musgrave and Musgrave, Reference Musgrave and Musgrave2012). Even with the development of synthetic rubber, natural rubber from Hevea brasiliensis still remains the preferred material for the manufacture of pneumatic tyres, which consume about 75% of global production of natural rubber (Schultes, Reference Schultes1993: 480).
Hevea’s natural habitat is along the Amazon River’s right bank in South America, within the countries of Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela. However, over three-fifths of the habitat is in Brazil (in the states of Amazonas and Pará), with the remaining fraction shared among the other eight countries. (See Figure A4.) The conditions for Hevea’s growth are constant heat, 1,800 millimetres of rain annually, and a maximum altitude of 800 m above sea level (Dean, Reference Dean and Brandão1989: 33).
The rubber industry before vulcanisation: Pre-1839
As documented by French travellers (Musgrave and Musgrave, Reference Musgrave and Musgrave2012), the use of rubber in the Amazon basin before the 19th century was confined mainly to the indigenous production of waterproof bags, coats, and shoes, and toys, particularly toy balls (Figure A5). During this period, Hevea trees, like their surrounding rainforest, were fundamentally conceived of as common-pool resources (Melby, Reference Melby1942).
The low price of rubber in the 1830s facilitated industry entry. However, the instability of rubber products (e.g., raincoats, shoes) caused firms to exit quickly. The products in fact remained sensitive to temperature changes, which would alter their consistency: brittle in cold winter, sticky and molten in the heat of summer (Schultes, Reference Schultes1993: 480–481). For instance, in 1835, the Roxbury India Rubber Company collapsed within six months after customers returned US$20,000 worth of goods that melted in the summer heat (Guise-Richardson, Reference Guise-Richardson2010: 361).
Brazil’s rubber industry boom after vulcanisation: 1850–1910
Rubber production post-vulcanisation started picking up from around 1850, beginning in Brazil. The first production increase came from a steamboat charter firm granted monopoly rights to navigate the Amazon River and its tributaries: the Companhia de Navegação do Amazonas, also known as Companhia do Amazonas. This charter facilitated the transport of rubber to both Manaus and Belém – see Figure A4. A further step came in December 1866, when the Brazilian government issued a decree opening the river and certain tributaries to international merchant ships, once the rubber industry had begun to show potential (Melby, Reference Melby1942: 453, 456). While initially subsidised by the Brazilian government, the Companhia soon turned profitable.
The institutional structure of production in the wild
Although parts of the rainforest were genuinely owned by the barons, the Brazilian institutional structure of production did not, in general, benefit from standardised techniques, a capital-intensive apparatus, and well-defined rights over Amazonian natural resources. It simply entailed the harvesting of wild rubber, which depended on the geographically uneven and widely distributed Hevea trees in the rainforest as well as on rudimentary extraction methods that were both damaging to the trees and very labour-intensive. Basically, production and transaction cost minimisation did not properly enter the logic of its economic organisation (Barham and Coomes, Reference Barham and Coomes1994).
Barons ran the industry during this period of Brazilian dominance.Footnote 1 As their individual businesses grew, so did their demand for labour. Initially, labour was mostly drawn from the Indigenous Peoples whose lands were seized and whose villages were destroyed for rubber extraction (C. Ross, Reference Ross2017: 102; Schultes, Reference Schultes1993: 482). However, this labour pool was insufficient. Attempts to import labour from Europe, Japan, and other parts of the Americas proved unsuccessful. The labour shortage was naturally offset in 1879 following the drought of 1877–1878 (Grande Seca). The drought resulted in tens of thousands of displaced individuals, mostly from the state of Ceará in northeast Brazil (Figure A4), that the barons quickly recruited for labour (Furtado, Reference Furtado, de Aguiar and Drysdale1963: 141–148; Melby, Reference Melby1942: 453).
Barons advanced expenses for tapping equipment and rainforest transport. Tappers (seringueiros) then autonomously sourced rubber in the rainforest to repay these debts. However, repayment was typically impossible because barons controlled the sale of both the rubber and essential tapper supplies (e.g., food, tobacco). Barons ensured that the arrangement was always in their favour by underpaying the tappers for rubber while simultaneously overcharging for the necessities. Tappers remained poor while barons grew wealthier (Bradford Burns, Reference Bradford Burns1965: 412; Schultes, Reference Schultes1993: 482).
Latex could only be tapped between August and January because the rainy season lasted for the other six months. Tappers lived in shacks by the river and would venture into the forest to collect the latex. After collection, tappers smoked the liquid latex by their shacks, transforming it into balls or sheets of rough rubber ready for shipping (Figure A1, left column). The balls and sheets were sent by boat to Manaus or to Belém, both now hubs, especially Manaus for its pivotal location, for the export of rubber to European and US markets (Frank and Musacchio, Reference Frank, Musacchio, Topik, Marichal and Frank2006: 277–278).
Given the production structure in the wild, the tappers had little time to hunt and fish and would often suffer from malnutrition (Schultes, Reference Schultes1993: 482). Moreover, deep in the rainforest, they were also vulnerable to diseases (yellow fever, malaria), and medical care was only located in distant urban areas (Frank and Musacchio, Reference Frank, Musacchio, Topik, Marichal and Frank2006: 280). Their mortality rate was very high because of these challenges and the harsh working conditions. At the same time, Ceará’s persisting drought assured a continual labour supply for the replacement of the ill and deceased (Melby, Reference Melby1942: 453).
Notwithstanding assured labour turnover, production in the wild could not guarantee a stable rubber supply. The latex flow would vary with rainfall level, trees’ forest distribution, and how much tapping each tree had already endured. Hevea is moreover vulnerable to endemic diseases, particularly the South American leaf blight, caused by the fungus Microcyclus ulei, which – even today – can severely damage or kill a tree or even an entire forest. Consequently, predicting rubber supply was impossible (Dean, Reference Dean and Brandão1989; Melby, Reference Melby1942: 467).
The blight’s endemic distribution in South America meant that plantation cultivation in the Amazon was biologically precluded. Henry Ford’s well-funded Fordlândia plantation in Pará during the 1920s–1930s later confirmed this: Fordlândia failed because of the blight despite significant capital investment and modern agronomic techniques (C. Ross, Reference Ross2017: 104; Tucker, Reference Tucker, McNeill and Pomeranz2015: 425). Plantation cultivation was thus not a viable Amazonian alternative to wild harvesting.
Consequences of the boom
Figure 1 shows Brazil’s share in world rubber production during 1850–1910. Brazil clearly dominated world rubber production (63%), and particularly superior quality rubber production (at least 80% from Hevea).
Brazil’s dominance of the natural rubber market, 1850–1910. Source: Data from Jünger (Reference Jünger and Aguti1942: 273), authors’ calculations.

Figure 1. Long description
The bar graph compares the percentage of Hevea brasiliensis and all rubber types from 1850 to 1910. The x-axis represents the years 1850, 1880, 1895, and 1910. The y-axis represents the percentage, ranging from 0% to 100%. The graph features two data series: one in blue for Hevea brasiliensis and one in orange for all rubber types. In 1850, both data series reach 100%. By 1880, Hevea brasiliensis is at approximately 85%, while all rubber types are at around 75%. In 1895, Hevea brasiliensis is at about 80%, and all rubber types are at approximately 70%. By 1910, Hevea brasiliensis is at around 85%, and all rubber types drop to about 60%. All values are approximated.
One consequence of this rubber boom was that, between 1870 and 1910, Manaus emerged as the rubber capital of the world, where, in 1910, a Rubber Exchange was established at the headquarters of the Commercial Association of Amazonas (Associação Comercial do Amazonas, ACA). Significantly, the Exchange had a direct telegraph line with London (Bradford Burns, Reference Bradford Burns1965).
A second consequence of the boom is that the tappers continually increased their tapping area, slowly claiming more uninhabited territory for Brazil through territorial sovereignty from mere occupation of land (uti possidetis, ‘as you possess’). One notable occupation was in Acre, where the tapper settlement led to Brazil taking over an area of over 187,981 Km2 previously regarded as part of Bolivia (Bradford Burns, Reference Bradford Burns1965: 412; Melby, Reference Melby1942: 461).
A third consequence was tree damage. The standard method of gouging trunks to collect latex in bowls damaged and sometimes killed trees, lowering yields (C. Ross, Reference Ross2017: 102). That the barons did not widely adopt less damaging techniques reflects the extractive logic of the institutional structure of production: with debt-peonage securing labour turnover and the Amazon’s vast tree population providing a buffer, there was no conservation incentive.
Finally, the rubber boom boosted Brazilian public revenues. The government collected an ad valorem export tax of 20% for each kilogram of rubber. For example, during 1909–1911, rubber provided, on average, a substantial 80% of all public revenue received in the state of Amazonas (Bradford Burns, Reference Bradford Burns1965: 416; Melby, Reference Melby1942: 462). Rather than strengthening formal institutional capacity, the rubber boom reinforced patterns of institutional fragility typical of resource windfalls (M. Ross, Reference Ross2001).
The advent of the automobile industry in the 1890s surged world rubber demand. Brazil’s rubber exports more than doubled from 1890 to 1910 (Figure A6). However, Brazil’s market dominance faced challenges as its institutional structure of production in the wild eventually proved inefficient (Dean, Reference Dean and Brandão1989).
Appropriation of the seeds
British naval officer Clement Markham was one of the first to recommend appropriating rubber seeds. During two years of travel in Peru, he made two key observations. First, he noticed native cinchona trees – yielding quinine – and resolved to transplant them to treat tropical diseases affecting British soldiers and their families. Second, he witnessed rubber trees being severely over-tapped to the point of dying. Years later, in about 1865, while transplanting the cinchona trees from Peru to India and Ceylon (Sri Lanka), he found that the rubber variety native to India, Ficus elastica, was also being tapped until the tree died. He then realised that wild rubber production would not be able to meet industrial demand. Markham then wrote to the India Office with his recommendation (Loadman, Reference Loadman2005: 82–83).
With growing global demand for rubber and constrained supply, the idea of domesticating rubber by establishing tree plantations – cultivating rubber commercially – began to take hold in other parts of the world. One of the first to propose rubber cultivation within Brazil was Brazilian João Martins da Silva Coutinho, who suggested it first in 1861, and again in 1867 during the Universal Exposition in Paris (Dean, Reference Dean and Brandão1989: 34; Loadman, Reference Loadman2005: 92).
Given the environmental conditions needed, the British looked to their tropical colonies like India, Ceylon, and British Malaya (Malaysia). In 1876, Joseph Hooker, the director of London’s Royal Botanic Gardens, Kew, advocated for the transplantation of Hevea brasiliensis to the Asian colonies (Dean, Reference Dean and Brandão1989: 36–65).
Cultivating rubber posed unique challenges, however. The first was obtaining Hevea seeds. Charles Farris, a Brazilian contact of James Collins, the curator of the museum of the British Pharmaceutical Society, managed to smuggle 2,000 seeds from Brazil to Britain in 1873. This brought on the second challenge: guaranteeing a successful transplant, as only 12 of the 2,000 seeds germinated. Half of these died, and only six seedlings were sent to the Calcutta Botanic Garden. But none survived once they were there. This first transplant attempt through biopiracy failed (Musgrave and Musgrave, Reference Musgrave and Musgrave2012).
Yet the British Empire was undeterred. Still judging there to be rent opportunities, its efforts to transplant Hevea in its Eastern colonies persisted. This is when Henry Alexander Wickham, an adventurous British subject whose most previous entrepreneurial ideas had failed, entered the scene.
In the 1870s, a well-coordinated effort among the India Office, Kew Gardens in England, and the Royal Botanic Gardens in India set in motion the collection of seeds, the shipment of seedlings, and experimental planting [of different rubber plants]. From Panama, Cross sent slightly over 100 Castilla [elastica] seedlings to Europe in 1875; the following year, from Brazil, 1,000 Hevea seedlings and 42 Manihot [also of the Spurge Family (Euphorbiaceae)] seedlings were dispatched. However, a larger and more selective collection was needed. This task was undertaken in 1876 by Henry Wickham (Santos, Reference Santos1980: 229–230; our translation from the original Portuguese).
Wickham, at the time, lived in Santarém, near the Tapajós River (Figure A4) in the state of Pará, and had significant knowledge of botany and of the local environment (Jackson, Reference Jackson2008). He received instructions and the promise of payment from Hooker to transport an unlimited quantity of Hevea seeds to Britain. In 1876, he successfully smuggled more than 70,000 seeds, with approximately 2,700 surviving the journey, for which he was paid £740 (Musgrave and Musgrave, Reference Musgrave and Musgrave2012). This event marked the initial stages of Hevea as a commercial crop beginning in Ceylon (with 1,919 seedlings) and Singapore (with 100 seedlings), before spreading to other British colonies in Asia (Dean, Reference Dean and Brandão1989: 51–65).
The exact coordinates of the appropriation remain unknown. However, sources agree that the appropriation occurred southwest of Santarém, near the confluence of the Tapajós and Amazon Rivers (Figure A4). Under prevailing legal interpretations of the period, this forest territory, as most others, was formally considered terra nullius (belonging to no one), albeit under Brazilian jurisdiction – the fact that the territory was the longtime home to Indigenous Peoples under their own informal ownership systems without written land titles was not factored in. Further, there were no physical restrictions to access the forest (a capacity challenge for any country over extremely large frontier territories), and no formal legal prohibitions and export controls on the seeds (and other natural resources). Crucially, at the time of Wickham’s appropriation in 1876, no Brazilian law prohibited the export of rubber seeds or seedlings. The appropriation therefore occurred with the seeds, neither protected property nor contraband under the legislation of the period. The forest’s ‘contents’ were in a situation of symmetry with its territory: by implication, they were considered res nullius – things belonging to no one.
Wickham’s export to Britain ultimately worked thanks to the support of the British Consul and the pretext that the seeds were ‘exceedingly delicate botanical specimens specially designated for delivery to Her Britannic Majesty’s own Royal Gardens of Kew’ (Wickham, Reference Wickham1908: 54). Nevertheless, the success of the entire appropriation remained speculative. For at the time, little was known about the possibility of cultivating rubber as a crop (Resor, Reference Resor1977: 348). As Wickham (Reference Wickham1908: 45) himself recalled: ‘[d]ead weight of inertia, not to say opposition, prevailed. The idea of cultivating a ‘jungle forest tree’ was looked upon as not less than visionary’.
The Brazilian response to Wickham’s actions was initially one of scorn. There was a popular belief that Hevea seeds would not grow in Asia. Then, when the trees in Ceylon thrived, the Brazilians claimed that they would not yield rubber; and when the trees started to yield, the Brazilians claimed that the yield would be inferior. The Brazilians only realised the serious consequences for their own industry once the Asian rubber proved to be of the best quality and much cheaper to produce than in the wild (Resor, Reference Resor1977: 344). Thereafter, Wickham was looked upon with contempt and considered a thief in Brazil while, in Britain, he earned the title of ‘Sir’ (Supplement to the London Gazette , 5 June, 1920: 6315).Footnote 2
After Wickham’s appropriation, it took two decades for commercial cultivation to materialise as initially the plants in Asia were interspersed among other crops to supplement income (C. Ross, Reference Ross2017: 106). Hevea plantations became more viable once the rise of the automobile industry sharply increased rubber demand for tyres, pushing prices significantly upward. The first commercial harvest from British Asia appeared in 1900. It constituted merely 3 out of a total of 53,933 tons or 0.006% of market share. Brazil instead produced 26,750 tons of wild Hevea, accounting for about 50% of market share (Weinstein, Reference Weinstein1983: 218).
By 1913, the tables turned: Britain had produced 47,618 tons of rubber, surpassing Brazil’s 39,560. As Figure 2 illustrates, Britain overtook Brazil’s market share in less than four years (1910–1914). By 1919, Britain’s dominance was unequivocal, claiming over 90% of the market with a production of 381,860 tons out of a total 423,495, while Brazil’s share shrunk to less than 9%, amounting to 34,285 tons (Weinstein, Reference Weinstein1983: 218).Footnote 3 The remarkable overtaking meant that as British controlled Asian plantations gained dominance, Brazil’s loss of market power approached its maximum, while contemporaneously Britain’s post-vulcanisation return increased.
Brazil’s fall and Britain’s rise in rubber production %, 1900–1922. Sources: Data from Jünger (Reference Jünger and Aguti1942: 273) and Santos (Reference Santos1980: 236), authors’ calculations.

Figure 2. Long description
A line graph showing the percentage of rubber production by Brazil and Britain from 1900 to 1922. The x-axis represents the years from 1900 to 1922, and the y-axis represents the percentage of rubber production. The blue line represents Brazil, and the orange line represents Britain. Key points include 1900, where British Asia produces just 0.006 percent, and Brazil feels untouchable. In 1913, British production surpasses Brazil, driven by auto industry demand. By 1919, the British Empire controls over 90 percent of the market, and Brazil falls below 9 percent. The timeline at the bottom highlights significant events: seed appropriation in 1876, the state of Amazonas imposing export duties in 1884, the Federal Rubber Defence Law in 1912, and a total ban on seed exports in 1918. All values are approximated.
The British Empire ended soon after World War II. Indonesia and India became independent in the 1940s, while Malaysia followed in 1957. By this point, Hevea plantations were firmly established in these and other Asian countries. Figure A7 illustrates the major producers 1960-1980, highlighting Indonesia, Malaysia, and Thailand along with China, India, and Sri Lanka. Another notable observation is that no single country consistently contributes more than 45% to world rubber production, indicating greater competition and a secure supply of rubber.
Brazilian protectionism after the biopiracy
Brazil protected the rubber industry only years after Wickham’s appropriation. In 1884, the Amazonas state placed high export duties on seeds and seedlings. From May 1913, the Asian markets began to take over the rubber market, and the price of rubber declined, leading to economic stagnation in the Amazon. The barons accused the federal government of focusing on coffee production and neglecting the larger economic picture (Bradford Burns, Reference Bradford Burns1965: 419). In fact, even during the rubber boom of 1890–1920, coffee remained Brazil’s largest export crop by a significant share (de Abreu and Bevilaqua, Reference de Abreu, Bevilaqua, Cárdenas, Ocampo and Thorp2000: 35).
The barons lobbied the government to push for the valorisation of rubber. As an emergency measure, Amazonas’ state government passed a law for intervention in the rubber industry. Under further political pressure, the Brazilian federal government passed the Rubber Defence Law of 1912, which ‘encouraged the creation of plantations, the improvement of transportation, and the attraction of immigrants, and ordered a fifty per cent reduction of export taxes’ (Bradford Burns, Reference Bradford Burns1965: 420–421). In 1918, a complete export ban on seeds and seedlings was introduced (Loadman, Reference Loadman2005: 92). The Bank of Brazil bought rubber, hoping to restrict supply and thereby raise prices. However, the valorisation schemes were unsuccessful, the legislation was ineffective, and the Bank of Brazil neared insolvency (Bradford Burns, Reference Bradford Burns1965: 420–421).
Technological shock and institutional change
We can now trace the transition from a common-pool resource production structure to a commercial one. By grafting some elementary formalism onto the factual and historical narrative, we can see how the transition was moulded by both technological and institutional interactions. We use game theory to organise the changing incentives of Brazilian and British actors as a heuristic guide to the narrative.
Imagine a simple game that reflects the sequential strategic choices made by Brazil (whose actors are first movers) and Britain (whose actors are second movers) concerning access to Hevea seeds. The periods of interest are pre-and post-vulcanisation. For ease of exposition, let us split the game periods into two figures: the game starts during pre-vulcanisation with Figure 3a, when the industrial uses of rubber had yet to manifest, and continues with post-vulcanisation in Figure 3b, when the industrial uses of rubber are common knowledge.
(a). Individual strategic choices and societal outcomes pre-vulcanisation. (b). Individual strategic choices and societal outcomes post-vulcanisation.

Figure 3. Long description
The flowchart depicts the strategic choices and societal outcomes related to rubber production before and after the technological innovation of vulcanization. Before vulcanization, rubber is a low-value common-pool resource. Brazil observes its low commercial value and decides to either block or allow access. If Brazil blocks access, Britain’s strategy involves either not appropriating or appropriating the resource. If Brazil allows access, Britain’s strategy also involves either not appropriating or appropriating the resource. Post-vulcanization, rubber gains high commercial value. Brazil updates its strategy, deciding to either block or allow access. Britain’s strategy again involves either not appropriating or appropriating the resource. The flowchart highlights the transition from common-pool extraction to organized commercial production, with Brazil introducing new formal rules.
Brazil’s strategies are either to deny access – Block access – or to permit access – Allow access – to the seeds. Britain’s strategies are either to engage in the appropriation of the seeds – Appropriate – or to refrain from it – Do not appropriate. Payoffs for both countries are in brackets, with Brazil’s payoff on the left and Britain’s payoff on the right.
Following events, we begin by considering why Brazil originally overlooked appropriation (Figure 3a). Initially, the repertoire of rubber applications was modest. We saw that the Indigenous Peoples in the Amazon, Brazil included, had mostly limited uses for rubber. The implication is that there was no significant demand or commercialisation of rubber during pre-vulcanisation. Brazil in practice tacitly managed the resource through informal rules in use rather than formal rules in form (well-defined property rights, legislation). Recall the common-pool nature of Hevea.
The payoffs reflect the limited uses of rubber before vulcanisation. Brazil’s α (α ≥ 0) reflects the value of market share when rubber had a relatively low value, little or no economic rents to seize, and Britain did not appropriate the seeds; but α − ϵ (ϵ ≥ 0) is the loss from British seed appropriation. To Block access incurs a cost, c (c ≥ 0), reflecting public administrative and logistical burdens of managing a frontier resource – already high in a vast region characterised by sparse state presence. The payoff for Brazil to Block access is thus α − c (when Britain does not appropriate) and α − c − ϵ (when Britain appropriates notwithstanding the restriction).
β is the payoff for Britain without appropriation, regardless of whether Brazil allows or blocks access. When Britain appropriates while Brazil allows access, its payoff is β − ω; ω ≥ 0 reflects the cost of appropriation – the seeds might not survive the journey or grow well in Asia. The cost to Britain of appropriating when Brazil does not allow access is given by p, which may be a threat of a penalty, such as jail time or a pecuniary fine, where p ≥ 0, resulting in a payoff of β − p − ω for Britain.
Brazil’s dominant strategy is to Allow access to avoid the costs incurred when blocking access. Britain’s dominant strategy is Do not appropriate, to avoid the costs involved in taking seeds whose commercial value is low. Thus, the Nash Equilibrium is [α, β], where Brazil will Allow access and Britain Does not appropriate. The interaction between the two players repeats under low incentives to deviate, represented by the loop (see the ‘*’ sign) at the ‘Allow access → Do not appropriate’ branch of the game tree in Figure 3a. This repeated-play equilibrium embodies a stable common-pool resource regime where an informal structure of production persists (i.e., there is no institutional change). This corresponds to rules in use without rules in form, reflecting a sort of residual incentive alignment between Brazil and Britain from the absence of rivalry over low-value common-pool resources.
This equilibrium dovetails with the known record preceding vulcanisation, in which Brazil made no attempt to prevent appropriation, and Britain no attempt to appropriate. However, the equilibrium changed dramatically after vulcanisation increased the commercial viability of rubber – the shock from vulcanisation increased the nominal value of rubber to both Brazil and Britain. From this point onward in the game, Brazil and Britain faced altered payoffs and new incentives, as shown by Figure 3b, which continues the game.
For Brazil, the payoff of the rubber industry increased to A > α, reflecting the greater value from promising new industrial trajectories. The cost to Brazil to Block access remains c. For Britain, there is now a large expected return to Appropriate the seeds, which exceeds the return of appropriating the seeds before vulcanisation, B e > β, even after accounting for the cost to appropriate the seeds when Brazil allows access.
Brazil’s strategy to Allow access and Britain’s strategy to Appropriate yields the payoff A − δ for Brazil, where δ ≥ 0 is the value of Brazil’s loss of market power to Britain (as plantation output grew, Brazil’s loss of market power approached near-total levels), and B e is the payoff for Britain. Brazil’s strategy to Allow access and Britain’s strategy of Do not appropriate yields a payoff of [A, b]. Here, Brazil reaps the payoff of the increased value of the rubber industry without any costs, A; Britain’s payoff is instead b, where B e > b > β, reflecting the seeds’ increased value, possible rents, and limits of their returns to Britain should they remain under Brazilian control.
Brazil’s strategy to Block access and Britain’s strategy to Appropriate yields a payoff for Brazil of A − c − δ, which is the payoff of the rubber industry for Brazil, A, less the cost of preventing access, c,Footnote 4 and less the loss of market power to Britain, δ. For Britain, B e − p is the payoff from gaining control of the seeds less the costs of appropriating the seeds, p, when Brazil blocks access. Brazil’s strategy to Block access and Britain’s strategy of Do not appropriate yields a payoff for Brazil of A − c. The latter means retaining the rubber industry, A, less the cost of preventing access, c. Britain’s payoff is b, which reflects the increased value of the rubber seeds with limits to their returns to Britain if the seeds remain under Brazil’s control.
Given the cost to Block access, the dominant strategy for Brazil is still to Allow access. Within the immediate logic of the formal game, this result is driven purely by Brazil’s high enforcement costs, c, and limited administrative capacity to monitor access across its vast Amazon region. However, the broader historical record explains why there was little political urgency to overcome these capacity limits. At the time, Brazil downplayed both the possibility that the seeds could grow outside the Amazon and the quality of any resulting yield. Both these beliefs reflect informational limits more than irrationality – a situation that, given previous repeated interactions with Britain, can be likened to a ‘self-sustaining system of shared beliefs’ (Aoki, Reference Aoki2001: 10). Because Brazil did not envision that the loss of market power to Britain, δ, would be very large, the institutional vacuum remained unchallenged.
Whether or not Britain appropriates, the payoffs for Brazil are lower when attempting to Block access. The rational behaviour of Brazil is to always Allow access. For Britain, provided that the expected value of appropriating the seeds less the cost of appropriating the seeds is greater than the value of the seeds under Brazil’s control (B e − p > b), the dominant strategy is to Appropriate. This result is historically accurate given our understanding of Wickham’s actions and the steep increase in the value of rubber from vulcanisation. Together, this means that the Nash Equilibrium is [A − δ, B e ], in which Brazil chooses, albeit passively, to Allow access and Britain chooses to Appropriate the seeds. This equilibrium also aligns with history.
Once the appropriation proved successful, Brazil’s institutional response, as we learned, was to introduce rules in form (such as tightening export controls) (Loadman, Reference Loadman2005: 92). Figure 3b represents these macro-level responses with the loop (the ‘**’ sign) at the ‘Appropriate’ outcome. Crucially, this loop does not imply a literal repetition of the initial seed-access game, as the successful appropriation was largely a one-off shock. Instead, it represents endogenous institutional feedback: the act of appropriation triggered the emergence of the ‘Commercial plantation structure’ (a shift in the institutional structure of production), prompting ‘Brazil introduces new formal rules’ (rules in form), which in turn redefined the broader strategic environment for subsequent resource governance.
This process exemplifies what North (Reference North1990) describes as endogenous institutional change, where shifting relative payoffs and beliefs lead actors to modify the rules that structure their interactions. Through repeated play, these adaptive revisions create a new equilibrium configuration of incentives and behaviours, consistent with the conception of institutions as equilibria sustained by shared expectations and feedback (Greif and Laitin, Reference Greif and Laitin2004). The resulting institutional change – emerging from a previously informal and weak governance setting – together with the diffusion and successful cultivation of Hevea abroad, produced a broader ‘Transition from common-pool extraction to organised commercial production’. Over time, these adjustments reconfigured incentives, monitoring, and enforcement, transforming rules in use into rules in form.
The equilibrium shift across the two figures, which, recall, together represent the same game, maps directly onto induced institutional innovation. The technological shock of vulcanisation altered relative factor valuations, raising the value placed on securing access to (the shadow price of) reliable rubber supply. In turn, this restructured the payoff environment, inducing Britain to establish plantations under new institutional structures of production and Brazil to introduce export controls, albeit belatedly. Critically, however, the inducement crossed a geopolitical boundary. Britain’s institutional capacity – coordinated scientific establishments, colonial administrative networks, and willingness to bear appropriation risk – allowed it to seize rents from a reorganisation of production that Brazil’s formal-rule vacuum had inadvertently created.
Unveiling positive societal consequences
The Brazilian experience, therefore, underscores how a technological shock can expose the limits of informal institutions and trigger formal institutional adaptation – albeit lagging – in the context of a common-pool. Let us now turn from individual payoffs, as depicted by the entries in the brackets of the game in Figure 3a and b, to societal payoffs, represented by summing the payoffs contained in each pair of brackets.
Before vulcanisation, the overall payoff for society was α + β. After the technological shock and the subsequent institutional shift to plantations, the realised payoff for society in [A−δ, B e ] is (A−δ) + B e . While comparing these two moments of play confirms a broad historical improvement to social welfare, isolating the specific effect of Britain’s appropriation requires a narrower baseline: the post-vulcanisation world without appropriation, where societal payoffs would be A + b. The shift to plantations was Kaldor-Hicks positive-sum because the gains from British appropriation exceeded both Britain’s foregone baseline and the loss in Brazil’s market power: B e − b > δ. The remainder of this subsection defends this claim empirically by documenting Brazil’s actual losses and comparing the observed trajectory to counterfactual ones.
Accounting for gross effects, the localised loss is equivalent to the collapse of the Amazonian rubber market from Asian competition, which led to a deep and lasting Brazilian decline (Weinstein, Reference Weinstein1983: 213–261). The gains to GDP per capita between 1840 and 1910 – from US$ 49 to US$ 329 – dissipated. Fiscal revenues, once buoyed by a 10–20% export tax on rubber, dried up (Coomes and Barham, Reference Coomes and Barham1994: 243). The decline coincided with growing destitution among rubber tappers (Weinstein, Reference Weinstein1983: 239–243), many of whom had endured debt peonage throughout the boom years (Coomes and Barham, Reference Coomes and Barham1994: 237).
To better focus the effect of the biopiracy on welfare, let us consider four counterfactuals that test Brazil’s dominance. The first counterfactual (CF1) posits that Hevea remains Amazon-bound indefinitely. The previously identified supply constraints (six-month tapping season, high labour mortality, dispersed tree distribution, and rudimentary extraction methods) suggest that Brazilian wild production could not have accommodated the demand surge driven by the automobile industry. We would have witnessed a sharp increase in prices, with detrimental effects on downstream industrial development (construction, medical, tyre, etc.), at least until synthetic rubber production matured in the 1930s–1940s. Brazil maintains its rents, but global welfare is lower than in the actual trajectory.
CF2 posits that Wickham’s mission fails, but a later transplantation succeeds (through, e.g., another British attempt, Dutch botanical networks in Indonesia or French Indochina or a private initiative induced by high rubber prices). CF2 is the most realistic alternative because multiple parties sought supply security, and botanical knowledge was diffusing globally. We thus have convergence to the actual trajectory, albeit with a lag: Brazil keeps its rents longer; the rest of the world endures higher prices longer.
CF3 posits that Brazil domesticates Hevea, as some had indeed proposed. However, as established earlier, Amazon plantation cultivation was biologically precluded by the endemic leaf blight. Brazil could not have domestically replicated the successful outcome of the British commercial plantations in the Southeast Asian colonies.
CF4 is more speculative: it posits Coasean bargaining. Brazil, aware that domestic cultivation was biologically precluded (CF3), establishes and enforces formal property rights over the seeds soon after vulcanisation. It then bargains for transferring access rights to the resource until mutually beneficial terms are reached. Rather than suffering uncompensated appropriation, Brazil formally licenses the non-rivalrous genetic resource for cultivation in blight-free Asia in exchange for royalties. Global output still expands. However, Brazil captures a permanent share of the plantation rents, demonstrating that its localised loss was a formal institutional failure rather than an inevitable biological destiny.
These counterfactuals lead to a single conclusion: Brazil’s losses represent the end of a dominant market position that could not be permanently sustained. CF1 shows that wild extraction was too constrained to meet global demand. CF2 shows competitive diffusion would have ended Brazil’s dominance regardless. CF3 confirms Brazil could not pivot to domestic plantations given leaf blight. Finally, CF4 shows that even if Brazil had filled the institutional vacuum, the physical rubber industry would have still moved to Asia; yet Brazil could have captured a share of the plantation rents rather than losing them entirely. Evaluated jointly, these scenarios demonstrate that Brazil’s lost market power (δ) was an inherently temporary or purely institutional premium. Because this localised loss was finite, the vast expansion of global output and lower prices secured by the plantation shift indicates that the net welfare condition for a Kaldor-Hicks rather than Pareto improvement (B e − b > δ) is satisfied.
Comparing Brazilian and British institutional structures of production
The welfare verdict above in part rests on the differing productive capacities of the two institutional structures of production. Between 1870 and 1910, the elasticity of rubber supply from Brazil is estimated to be very inelastic: 0.22 (Fernandes, Reference Fernandes2009: 186). There were several reasons for this. Firstly, supply from the Amazon region was unpredictable because of the uneven spread of Hevea trees in the Amazon rainforest and inconsistent yields given Brazilian tapping methods. Secondly, the remoteness of rubber-producing regions in the rainforest created logistical difficulties for both transportation and communication. Thirdly, high mortality rates and a constant need to replace labour meant that the labour force was unable to consistently sustain rubber tapping. Fourthly, Hevea in the Amazon was susceptible to leaf blight, which could spread among the trees and further reduce yields (Dean, Reference Dean and Brandão1989; Frank and Musacchio, Reference Frank, Musacchio, Topik, Marichal and Frank2006). As we saw, the biological constraint of leaf blight made plantation cultivation in the Amazon unsustainable, compounding the institutional constraints of wild harvesting.
Growing plantations in Asia managed to increase the elasticity of supply and to address the challenges posed by Brazilian wild harvesting. First, concentrated planting and improved tapping methods increased both supply and its predictability. In 1888, Henry Nicholas Ridley, Director of the Singapore Botanic Gardens, developed a safer method of tapping the trees that would maintain a high yield for a longer time. Additionally, the tapping season in Asian plantations was much longer than the Amazonian one, which was limited by a six-month rainy season. Second, the logistical challenges were addressed: instead of finding and tapping wild trees spread out within the rainforest, the trees were cultivated densely on plantations. This reduced the cost of rubber production considerably. In 1910, the investment per worker for the British was £210, significantly less than Brazil’s £337 (a saving of about 38%). Third, concentrating production on plantations meant safer working conditions and access to medical care, which the rubber companies provided – attracting novel labour from India and China. Fourth, leaf blight is endemic to South America, but not Asia. The Asian plantations flourished, free of disease (Dean, Reference Dean and Brandão1989; Frank and Musacchio, Reference Frank, Musacchio, Topik, Marichal and Frank2006: 275–280).
The successful propagation of rubber trees outside the Amazonian native habitat demonstrates the potential for cultivation in various regions with suitable climates and soil conditions (Dean, Reference Dean and Brandão1989; Santos, Reference Santos1980). Notably, all ‘high-yielding cultivars of Hevea brasiliensis in the world originated from breeding programmes initially developed in Southeast Asia’ (Le Guen et al., Reference Le Guen, Doaré, Weber and Seguin2009: 673).
By establishing rubber plantations outside Brazil, Britain diversified the sources of, and globally decentralised, rubber production, reducing dependence on a single region. Following the fall of the British Empire and the loss of control over its Asian territories, competition in the rubber industry increased (Figure A7). The increased competition, as the Ostroms’ insights on polycentric governance suggest (Aligica, Reference Aligica2013), created a more resilient and adaptable institutional structure of production. The multiple centres of decision-making allowed for innovation and improved management, enhancing global resilience in the rubber supply chain. This diversification benefited all countries reliant on rubber, contributing to the stability and accessibility of rubber as a fundamental global resource.
Another positive consequence of the appropriation is environmental. After the Brazilian rubber market collapsed, the whole rubber network within the Amazon ended. The Amazon rainforest remained largely intact, avoiding overexploitation, even though the region had become more accessible from boats navigating the Amazon River and its tributaries during the rubber boom (Tucker, Reference Tucker, McNeill and Pomeranz2015: 425).Footnote 5
Conclusion
We investigate the transformation of the institutional structure of production of natural rubber from Brazil’s wild-harvesting method to the commercially organised one of the British Empire in Southeast Asia. At the heart of this transformation lies an interplay of innovation, strategic appropriation, and institutional inertia. The breakthrough of vulcanisation dramatically increased the value of natural rubber, generating incentives for rubber domestication under more efficient, plantation-based structures of production. Brazil’s limited capacity to formally manage access to its resources enabled the appropriation of Hevea brasiliensis seeds through British subterfuge – an act now widely interpreted as biopiracy – which unintentionally changed the global rubber industry forever.
Our findings support several conclusions. First, the case illustrates the dynamic relationship between external shocks and institutional change. Positive technological change does not simply increase economic returns. It alters the strategic landscape, creating new incentives for appropriation, adaptation or exit.
Second, the Brazilian case adds nuance to the theory of common-pool resource governance. Unlike more familiar tragedies (or quasi-tragedies) of overuse, a different failure is at play: a vacuum in formal institutions in the face of higher latent resource value. Brazil’s Hevea trees were initially managed informally; a management that sufficed until wild rubber had limited industrial uses. It was not the withdrawal rights that failed Brazil, but the exclusion rights that were not established in time; a lacuna that informal governance alone could not fill. And it is not that the common-pool characteristics of Hevea in the Amazon – low excludability and high subtractability – changed with commercialisation; what changed was the institutional structure of production that governed and disciplined the access to, and the use of, the resource.
Third, we must disentangle institutional from biological constraints. Even with perfect property rights, endemic leaf blight biologically precluded domestic rubber plantations in Brazil. Brazil’s institutional vacuum, therefore, did not cause its inability to cultivate, but rather its failure to delay the resource transfer. By leaving the seeds unprotected, Brazil forfeited the ability to command steep premiums from its dominant market position during the intervening years – perhaps decades – it would have otherwise taken for rivals to acquire and cultivate the genetic resource. Institutions ultimately governed the timing and distribution of these economic gains, while biology dictated the industry’s geographic destiny.
Fourth, institutional change is not always the product of foresight and optimisation. It can result from miscalculation, exogenous shocks, and unintended consequences. We echo North’s view that institutions mainly evolve through a path-dependent process shaped as much by beliefs, chance, and constraints as by rational design. The sequence of events that we formalise shows that Brazil’s choices were made under one set of payoffs, the vulcanisation shock arrived and changed those payoffs, and reversing prior commitments proved too costly. Path dependence here is a protagonist, not a metaphor.
Fifth, the rubber case both confirms and complicates the induced institutional innovation framework: a technological shock can generate factor scarcity and induce institutional responses on both the demand and supply sides, but the responses need not be nationally contained. Indeed, both jurisdictions exhibited these dual responses: British demand for supply security induced its empire to supply colonial property rights, just as Brazil’s belated demand for protection induced its state to supply reactive export controls. Notwithstanding the analytic narrative nature of our investigation, we venture a generalisation – namely that the international dimension deserves explicit incorporation into theories of induced institutional change, particularly in contexts where resources are globally traded, property rights are poorly defined within and across borders, and state administrative capacity is unequal.
Lastly, there are implications for and from the notion of biopiracy. While the notion captures the asymmetry in power and property rights definition that can exist among individuals and countries, it risks oversimplifying the contemporaneous institutional landscape. The Brazilian case underscores that inefficiency existed on multiple levels, which can, on occasion, be intertwined and time-inconsistent, complicating institutional reform. This recognition does not absolve the appropriation. Rather, it allows for a more historically grounded understanding of how patterns of coercion, technological innovation, and institutional adaptation can change in synchrony or not. At the micro level of the institutional structure of production, the change was synchronous and successful for Britain and asynchronous and unsuccessful for Brazil. At the macro level of public governance, Brazil lacked formal legal protection for natural resources when the appropriation occurred and was lagging in introducing it; Britain capitalised on this situation. At both levels, from a positive perspective, given the decision-making context and the non-identical incentives from differing priors, behaviour was rational all round. The lesson is that biopiracy’s impact depends jointly on what a country knows about its resources and what formal property rules it has in place.
The case raises questions. What constitutes biopiracy in the absence of formal property rights? How does biopiracy influence institutional trajectories? A further question is whether such episodes should be theorised as instances of institutional arbitrage rather than mere biopiracy – the exploitation by one jurisdiction of the institutional weaknesses of another to capture rents that the weaker regime cannot protect. These questions deserve further investigation. At the same time, they suggest that the case anticipates debates about genetic commons, intellectual property, and commodification of life (Boyle, Reference Boyle2003) – most visibly in the Nagoya Protocol (2010, in force since 2014: https://www.cbd.int/abs/text), which establishes an international framework for access and benefit-sharing precisely to address the asymmetries in resource governance that this analytic narrative traces to their nineteenth-century roots.
The biopiracy of rubber was not merely an act of appropriation or of opportunistic imperial entrepreneurship. It was a seed of institutional change that unintentionally remade world markets and redefined the governance of a critical natural resource. The broader lesson is that institutional resilience in the face of technological shocks depends not only on the strength of existing rules, but also on the strategic foresight and adaptive capacity of those entrusted with their upkeep and defence.
Supplementary material
Online Appendix available at: https://doi.org/10.6084/m9.figshare.32347389.
Acknowledgements
The authors are grateful to the nine referees; the Guest Editors; the Editor-in-Chief; and WINIR 2025 Conference participants for their extremely valuable feedback. Kudos to Rosolino Candela for help with a reference.
Conflicts of interests
The authors declare that they have no relevant or material financial interests that relate to the research presented in this work.
Funding support
None.
AI Declaration
For the final revision before publication only, the authors used Claude AI and ChatGPT to edit the text, improve the English, and keep the work within the maximum number of words; Grammarly was used to check the spelling during various drafts; Gemini AI was used to adapt the map in the Online Appendix.


