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Diversification and labor productivity on US permaculture farms

  • Rafter Sass Ferguson (a1) (a2) and Sarah Taylor Lovell (a3)

The relationship between diversification and labor productivity is a pressing issue for diversified farming systems (DFS), which must compete with the high labor productivity of specialized and mechanized industrial farming systems. Synergies between multiple production systems represent an alternative pathway for enhancing labor productivity, contrasting with the economies of scale achieved by industrial farming. Facing a lack of technical and institutional support for managing diversified systems, DFS turn to grassroots agroecological networks for support. Permaculture is a grassroots network with an emphasis on diversified production that—despite its international scope and high public profile—has received little scholarly attention. In this exploratory study we assessed the relationship between diversification, labor productivity and involvement with permaculture, using data from 196 enterprises (i.e., distinct sources of income or aspects of a farm business) on 36 permaculture farms in the USA. We characterized diversification in two ways: by income at the level of the whole farm, and by labor for production enterprises only. By fitting a multilevel model of labor productivity (enterprises nested within farms) we assessed the evidence for synergies in production, i.e., positive relationships between diversification and returns to labor. Results indicated that both production diversity and level of involvement in the permaculture network had significant positive effects on labor productivity. This effect disappeared, however, when both diversity and participation were at their highest levels. Results also indicate that high levels of diversification shift tree crops from the lowest labor productivity of any type of production enterprise to the highest. Through this first ever (to our knowledge) systematic investigation of permaculture farms, our results provide support for the presence of production synergies in DFS, and for the role of permaculture in helping farmers achieve these synergies.

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Author for correspondence: Rafter Sass Ferguson,
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Altieri MA (1999) Applying agroecology to enhance the productivity of peasant farming systems in Latin America. Environment, Development and Sustainability 1, 197217. doi:10.1023/A:1010078923050.
Altieri MA and Nicholls CI (2005) Agroecology and the Search for a Truly Sustainable Agriculture, 1st edn. Basic Textbooks for Environmental Training. Mexico D.F.: United Nations Environmental Programme, Environmental Training Network for Latin America and the Caribbean.
Bane P (2012) The Permaculture Handbook: Garden Farming for Town and Country. New York: New Society Publishers.
Barthel S, Crumley CL and Svedin U (2013) Biocultural refugia: combating the erosion of diversity in landscapes of food production. Ecology and Society 18, 71. doi:10.5751/ES-06207-180471.
Bates D, Mächler M, Bolker B and Walker S (2015) Fitting linear mixed-effects models using lme4. Journal of Statistical Software 67, 148. doi:10.18637/jss.v067.i01.
Becot FA, Conner DS, Kolodinsky JM and Méndez VE (2014) Measuring the costs of production and pricing on diversified farms: juggling decisions amidst uncertainties. The American Society of Farm Managers and Rural Appraisers, 174191.
Bowman MS and Zilberman D (2013) Economic factors affecting diversified farming systems. Ecology and Society 18, 33. doi:10.5751/ES-05574-180133.
Brooker RW, Bennett AE, Cong W-F, Daniell TJ, George TS, Hallett PD, Hawes C, Iannetta PPM, Jones HG, Karley AJ, Li L, McKenzie BM, Pakeman RJ, Paterson E, Schöb C, Shen J, Squire G, Watson CA, Zhang C, Zhang F, Zhang J and White PJ (2015) Improving intercropping: a synthesis of research in agronomy, plant physiology and ecology. New Phytologist 206, 107117. doi:10.1111/nph.13132.
Brookfield H (2001) Intensification, and alternative approaches to agricultural change. Asia Pacific Viewpoint 42, 181192. doi:10.1111/1467-8373.00143.
Brookfield H (2008) Family farms are still around: Time to invert the old agrarian question. Geography Compass 2, 108126. doi:10.1111/j.1749-8198.2007.00078.x.
Carolan MS (2006) Social change and the adoption and adaptation of knowledge claims: Whose truth do you trust in regard to sustainable agriculture? Agriculture and Human Values 23, 325339. doi:10.1007/s10460-006-9006-4.
Chavas J-P (2008) On the economics of agricultural production. Australian Journal of Agricultural and Resource Economics 52, 365380. doi:10.1111/j.1467-8489.2008.00442.x.
Coelli TJ, Rao DSP, O'Donnell CJ and Battese GE (2005) An Introduction to Efficiency and Productivity Analysis. New York: Springer Science & Business Media.
Conrad A (2014) We are farmers: Agriculture, food security, and adaptive capacity among the permaculture and conventional farmers in central Malawi. PhD Anthropology in American University, Washington, DC.
Debertin DL (2012) Agricultural Production Economics, 2nd edn. New York: MacMillan Publ.
Delate K, Duffy M, Chase C, Holste A, Friedrich H and Wantate N (2003) An economic comparison of organic and conventional grain crops in a long-term agroecological research (LTAR) site in lowa. American Journal of Agricultural Economics 18, 5969.
De Schutter O (2010) Report submitted by the Special Rapporteur on the right to food. United Nations Human Rights Council.
Devendra C and Thomas D (2002) Crop–animal interactions in mixed farming systems in Asia. Agricultural Systems 71, 2740. doi:10.1016/S0308-521X(01)00034-8.
Dey MM, Paraguas FJ, Kambewa P and Pemsl DE (2010) The impact of integrated aquaculture-agriculture on small-scale farms in Southern Malawi. Agricultural Economics 41, 6779. doi:10.1111/j.1574-0862.2009.00426.x.
Dimitri C, Effland AB and Conklin NC (2005) The 20th Century Transformation of US Agriculture and Farm Policy. Economic Information Bulletin, No. 3. Washington, DC: United States Dept. of Agriculture Economic Research Service.
Falk B (2013) The Resilient Farm and Homestead: An Innovative Permaculture and Whole Systems Design Approach. White River Junction, VT: Chelsea Green Pub.
FAO (2015) Natural Capital Impacts in Agriculture: Supporting Better Business Decision-Making. Rome, Italy: Food and Agriculture Organization of the United Nations (FAO).
Ferguson RS and Lovell ST (2014) Permaculture for agroecology: Design, movement, practice, and worldview. A review. Agronomy for Sustainable Development 34, 251274. doi:10.1007/s13593-013-0181-6.
Ferguson RS and Lovell ST (2015) Grassroots engagement with transition to sustainability: diversity and modes of participation in the international permaculture movement. Ecology and Society 20, 39. doi:10.5751/ES-08048-200439.
Ferguson RS and Lovell ST (2017) Livelihoods and production diversity on U.S. permaculture farms. Agroecology and Sustainable Food Systems 41, 588613. doi:10.1080/21683565.2017.1320349.
Ferguson RS and Toensmeier E (2014) Perennial agriculture now: a global review of perennial staple crops by climate region and nutrient profile. Presented at the American Society of Agronomy International Annual Meeting: Great challenges, grand solutions., Long Beach, CA.
Fernandez M, Goodall K, Olson M and Mendez E (2012) Agroecology and alternative agrifood movements in the United States: Towards a sustainable agrifood system. Agroecology and Sustainable Food Systems 37, 115126. doi:10.1080/10440046.2012.735633.
Fox J (2003) Effect displays in R for generalised linear models. The Journal of Statistical Software 8, 127.
Frey D (2011) Bioshelter Market Garden: A Permaculture Farms. Gabriola Island, Canada: New Society Pub.
Gelman A and Hill J (2006) Data Analysis Using Regression and Multilevel/Hierarchical Models, 1 edn. Cambridge; New York: Cambridge University Press.
Grassetti L, Gori E and Minotti SC (2005) Multilevel flexible specification of the production function in health economics. IMA Journal of Management Mathematics 16, 383398. doi:10.1093/imaman/dpi017.
Hoff A (2007) Second stage DEA: Comparison of approaches for modelling the DEA score. European Journal of Operational Research 181, 425435. doi:10.1016/j.ejor.2006.05.019.
Holloway L, Cox R, Venn L, Kneafsey M, Dowler E and Tuomainen H (2006) Managing sustainable farmed landscape through ‘alternative’ food networks: A case study from Italy. Geographical Journal 172, 219229. doi:10.1111/j.1475-4959.2006.00205.x.
Holmgren D (2002) Principles & pathways beyond sustanability. Holmgren Design Services.
Holt-Giménez E (2016) Food, labor and commodities [www document]. Good Tilth. Available at (accessed 8.9.17).
Holzer S (2011) Sepp Holzer's Permaculture: A Practical Guide to Small-Scale, Integrative Farming and Gardening. White River Junction, Vermont: Chelsea Green Pub Co.
Iles A and Marsh R (2012) Nurturing diversified farming systems in industrialized countries: how public policy can contribute. Ecology and Society 17, 42. doi:10.5751/ES-05041-170442.
Ingram M (2007) Biology and beyond: The science of back to nature farming in the United States. Annals of the Association of American Geographers 97, 298312. doi:10.1111/j.1467-8306.2007.00537.x.
Ingram J, Maye D, Kirwan J, Curry N and Kubinakova K (2014) Learning in the permaculture community of practice in england: An analysis of the relationship between core practices and boundary processes. The Journal of Agricultural Education and Extension 20, 116.
Isaac ME, Erickson BH, Quashie-Sam SJ and Timmer VR (2007) Transfer of knowledge on agroforestry management practices: the structure of farmer advice networks. Ecological Society 12, 32.
Johnes J (2006) Measuring efficiency: A comparison of multilevel modelling and data envelopment analysis in the context of higher education. Bulletin of Economic Research 58, 75104. doi:10.1111/j.0307-3378.2006.00238.x.
Jordan NR, Bawden RJ and Bergmann L (2008) Pedagogy for addressing the worldview challenge in sustainable development of agriculture. Journal of Natural Resources and Life Sciences Education 37, 9299.
Kahiluoto H and Kaseva J (2016) No evidence of trade-Off between farm efficiency and resilience: Dependence of resource-use efficiency on land-Use diversity. PLOS ONE 11, e0162736. doi:10.1371/journal.pone.0162736.
Kloppenburg J, Hendrickson J and Stevenson GW (1996) Coming in to the foodshed. Agriculture and Human Values 13, 3342. doi:10.1007/BF01538225.
Kremen C, Bacon C and Iles A (2012) Diversified farming systems: An agro-ecological, systems-based alternative to modern industrial agriculture. Ecology and Society 17, 44. doi:10.5751/ES-05103-170444
Kroma MM (2006) Organic farmer networks: Facilitating learning and innovation for sustainable agriculture. Journal of Sustainable Agriculture 28, 528.
Kumbhakar SC, Lovell CK (2003) Stochastic Frontier Analysis. New York, NY: Cambridge University Press.
Lancaster B (2013) Rainwater Harvesting for Drylands and Beyond, Volume 1, 2nd Edition: Guiding Principles to Welcome Rain into Your Life and Landscape. Revised second edition Tucson, AZ: Rainsource Press, Tucson, Ariz.
Lobao L, Meyer K (2001) The great agricultural transition: crisis, change, and social consequences of twentieth century US farming. Annual Review of Sociology 27, 103124.
Lyson TA, Stevenson GW, Welsh R (eds.) (2008) Food and the Mid-Level Farm: Renewing an Agriculture of the Middle. Cambridge, Mass: The MIT Press.
Magdoff F, Foster JB, Buttel FH (2000) Hungry for Profit: The Agribusiness Threat to Farmers, Food, and the Environment. New York, NY: NYU Press.
Martínez-Torres ME and Rosset PM (2010) La Vía Campesina: The birth and evolution of a transnational social movement. Journal of Peasant Studies 37, 149175. doi:10.1080/03066150903498804.
McDonald J (2009) Using least squares and tobit in second stage DEA efficiency analyses. European Journal of Operational Research 197, 792798. doi:10.1016/j.ejor.2008.07.039.
McIntyre BD, Herren HR, Wakhungu J and Watson RT (2009) Agriculture at a crossroads. Synthesis Report.
Meek D (2016) The cultural politics of the agroecological transition. Agriculture and Human Values 33, 275290. doi:10.1007/s10460-015-9605-z.
Meert H, Van Huylenbroeck G, Vernimmen T, Bourgeois M and van Hecke E (2005) Farm household survival strategies and diversification on marginal farms. Journal of Rural Studies 21, 8197. doi:10.1016/j.jrurstud.2004.08.007.
Mollison B (1979) Permaculture two: Practical Design for Town and Country in Permanent Agriculture. Tasmania: Tagari Publications.
Mollison B (1988) Permaculture: A Designer's Manual. Tasmania: Tagari Publications.
Mollison B and Holmgren D (1978) Permaculture one: A Perennial Agricultural System for Human Settlements. Morebank, NSW, Australia: Transworld Publications.
Mollison BC and Slay RM (1997) Introduction to Permaculture, 2nd edn. Tasmania: Tagari Pub.
Morel K and Léger F (2016) A conceptual framework for alternative farmers’ strategic choices: The case of French organic market gardening microfarms. Agroecology and Sustainable Food Systems 40, 466492. doi:10.1080/21683565.2016.1140695.
Morel K, Guégan C and Léger FG (2016) Can an organic market garden based on holistic thinking be viable without motorization? The case of a permaculture farm, in: Acta Horticulturae. Leuven, Belgium: International Society for Horticultural Science (ISHS), pp. 343–346. doi:10.17660/ActaHortic.2016.1137.47.
Mulligan M and Hill S (2001) Ecological Pioneers: A Social History of Australian Ecological Thought and Action. New York, NY: Cambridge University Press.
Murshed-E-Jahan K and Pemsl DE (2011) The impact of integrated aquaculture–agriculture on small-scale farm sustainability and farmers livelihoods: Experience from Bangladesh. Agricultural Systems 104, 392402.
Nakagawa S and Schielzeth H (2013) A general and simple method for obtaining R2 from generalized linear mixed-effects models. Methods in Ecology and Evolution 4, 133142. doi:10.1111/j.2041-210x.2012.00261.x.
Nelson KC, Brummel RF, Jordan N and Manson S (2014) Social networks in complex human and natural systems: The case of rotational grazing, weak ties, and eastern US dairy landscapes. Agriculture and Human Values 31, 245259. doi:10.1007/s10460-013-9462-6.
Perfecto I and Vandermeer J (2010) The agroecological matrix as alternative to the land-sparing/agriculture intensification model. Proceedings of the National Academy of Sciences of the United States of America 107, 57865791. doi:10.1073/pnas.0905455107.
Petersen P, Mussoi EM and Dalsoglio F (2012) Institutionalization of the agroecological approach in Brazil: advances and challenges. Journal of Sustainable Agriculture 37, 103114. doi:10.1080/10440046.2012.735632.
Picasso VD, Brummer EC, Liebman M, Dixon PM and Wilsey BJ (2011) Diverse perennial crop mixtures sustain higher productivity over time based on ecological complementarity. Renewable Agriculture and Food Systems 26, 317327. doi:10.1017/S1742170511000135.
Pimentel D and Burgess M (2014) An environmental, energetic and economic comparison of organic and conventional farming systems, In Pimentel D, Peshin R (eds). Integrated Pest Management. Springer, Dordrecht, Netherlands, pp. 141166.
Raiche G and Magis D (2010) nFactors: Parallel analysis and non graphical solutions to the Cattell Scree Test. R Package Version 2, 60.
Ribeiro Palacios M, Huber-Sannwald E, García Barrios L, Peña de Paz F, Carrera Hernández J and Galindo Mendoza M de G (2013) Landscape diversity in a rural territory: Emerging land use mosaics coupled to livelihood diversification. Land Use Policy 30, 814824. doi:10.1016/j.landusepol.2012.06.007
Riley J and Fielding WJ (2001) An illustrated review of some farmer participatory research techniques. Journal of Agricultural Biological and Environmental Statistics 6, 518. doi:10.1198/108571101300325210.
Rosset PM and Martínez-Torres ME (2012) Rural social movements and agroecology: Context, theory, and process. Ecological Society 17, 17. doi:10.5751/ES-05000-170317.
Rosset PM, Sosa BM, Jaime AMR and Lozano DRÁ (2011) The Campesino-to-Campesino agroecology movement of ANAP in Cuba: Social process methodology in the construction of sustainable peasant agriculture and food sovereignty. Journal of Peasant Studies 38, 161191. doi:10.1080/03066150.2010.538584.
Sandhu H, Wratten S, Costanza R, Pretty J, Porter JR and Reganold J (2015) Significance and value of non-traded ecosystem services on farmland. PeerJournal 3, e762. doi:10.7717/peerj.762.
Sanford AW (2011) Ethics, narrative, and agriculture: Transforming agricultural practice through ecological imagination. Journal of Agricultural and Environmental Ethics 24, 283303. doi:10.1007/s10806-010-9246-6.
Scheipl F, Greven S and Küchenhoff H (2008) Size and power of tests for a zero random effect variance or polynomial regression in additive and linear mixed models. Computational Statistics & Data Analysis 52, 32833299. doi:10.1016/j.csda.2007.10.022.
Schoeneberger M, Bentrup G, de Gooijer H, Soolanayakanahally R, Sauer T, Brandle J, Zhou X and Current D (2012) Branching out: Agroforestry as a climate change mitigation and adaptation tool for agriculture. Journal of Soil and Water Conservation 67, 128A136A. doi:10.2489/jswc.67.5.128A.
Seyfang G (2007) Growing sustainable consumption communities: The case of local organic food networks. International Journal of Sociology and Social Policy 27, 120134. doi:10.1108/01443330710741066.
Sharrow SH (1999) Silvopastoralism: Competition and facilitation between trees, livestock, and improved grass clover pastures on temperate rainfed lands, in: Buck LE, Lassoie JP, Fernández ECM (eds.) Agroforestry in Sustainable Agricultural Systems, Advances in Agroecology. Salem, MA: CRC Press, pp. 111130.
Shepard M (2013) Restoration Agriculture: Real World Permaculture for Farmers. Austin, Texas: Acres U.S.A.
Simar L and Wilson PW (2007) Estimation and inference in two-stage, semi-parametric models of production processes. Journal of Economic 136, 3164. doi:10.1016/j.jeconom.2005.07.009.
Simar L and Wilson PW (2011) Two-stage DEA: Caveat emptor. Journal of Productivity Analysis 36, 205218.
Smaje C (2014) Permaculture design course syndrome. Small Farm Future.
Smith B and Wilson JB (1996) A consumer's guide to evenness indices. Oikos 70–82.
Smith RG, Gross KL and Robertson GP (2008) Effects of crop diversity on agroecosystem function: crop yield response. Ecosystems 11, 355366. doi:10.1007/s10021-008-9124-5.
Suh J (2014) Theory and reality of integrated rice–duck farming in Asian developing countries: A systematic review and SWOT analysis. Agricultural Systems 125, 7481. doi:10.1016/j.agsy.2013.11.003.
Toensmeier E (2011) Climate Stability with “Permanent Agriculture.” Permac. Act.
Trought J (2015). The Community-Scale Permaculture Farm: The D Acres Model for Creating and Managing an Ecologically Designed Educational Center. White River Junction, VT: Chelsea Green Publishing.
USDA-NASS (2012) 2012 Census of Agriculture. Washington, DC: USDA, National Agricultural Statistics Service.
USDA-NASS (2014a) Farms and Farmland Numbers, Acreage, Ownership, and Use (No. ACH12-13), 2012 Census of Agriculture Highlights. USDA - NASS.
USDA-NASS (2014b) Farm Demographics - U.S. Farmers by Gender, Age, Race, Ethnicity, and More (No. ACH12-3), 2012 Census of Agriculture Highlights. USDA - NASS.
USDA-NASS (2016) Small Farms: 88 percent of U.S. farms, 48 percent of farmland, 20 percent of sales (No. ACH12-34), 2012 Census of Agriculture Highlights. USDA - NASS.
USDA-NASS (2017) Principal farm operator household finances, 2010-2017F. USDA, Economic Research Service and National Agricultural Statistics Service.
Valdivia C and Barbieri C (2014) Agritourism as a sustainable adaptation strategy to climate change in the Andean Altiplano. Tourism Management Perspectives 11, 1825. doi:10.1016/j.tmp.2014.02.004.
Vandermeer JH (1992) The Ecology of Intercropping. Cambridge, UK: Cambridge University Press.
van der Ploeg JD (2008) The new Peasantries Struggles for Autonomy and Sustainability in an era of Empire and Globalization. London; Sterling, VA: Earthscan publishes in association with the International Institute for Environment and Development,
Veteto JR and Lockyer J (2008) Environmental anthropology engaging permaculture: Moving theory and practice toward sustainability. Culture and Agriculture 30, 4758.
Villano R, Fleming E and Fleming P (2010) Evidence of farm-level synergies in mixed-farming systems in the Australian Wheat-Sheep Zone. Agricultural Systems 103, 146152. doi:10.1016/j.agsy.2009.11.005.
Wang SL and Ball E (2014) Agricultural Productivity Growth in the United States: 1948-2011. Amber Waves 1A.
Warner KD (2006) Extending agroecology: Grower participation in partnerships is key to social learning. Renewable Agriculture and Food Systems 21, 8494. doi:10.1079/RAF2005131.
Warner KD (2008) Agroecology as participatory science. Science, Technology, & Human Values 33, 754777.
Williams G. (2001). Permaculture: hype or hope? Whole Earth, Winter, 9092.
Wilson GA (2008) From ‘weak’ to ‘strong’ multifunctionality: Conceptualising farm-level multifunctional transitional pathways. Journal of Rural Studies 24, 367383. doi:10.1016/j.jrurstud.2007.12.010.
Yamamoto D and Engelsted AK (2014) World Wide Opportunities on Organic Farms (WWOOF) in the United States: Locations and motivations of volunteer tourism host farms. Journal of Sustainable Tourism 22, 964982. doi:10.1080/09669582.2014.894519.
Zimmerer KS and Vanek SJ (2016) Toward the integrated framework analysis of linkages among agrobiodiversity, livelihood diversification, ecological systems, and sustainability amid global change. Land 5, 10. doi:10.3390/land5020010.
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