We introduce an original dataset of formal political participation for over 2,000 individuals included in the Forbes Billionaires List. We find that billionaire politicians are a surprisingly common phenomenon: Over 11% of the world’s billionaires have held or sought political office. Even compared to other elite groups known for producing politicians from their ranks, this is a high rate of political participation. Moreover, billionaires focus their political ambitions on influential positions, have a strong track record of winning elections, and lean to the right ideologically. We also document substantial cross-national variation: a country’s number of billionaire politicians is not simply a product of its total number of billionaires, but is instead related to regime type. Specifically, billionaires formally enter the political sphere at a much higher rate in autocracies than in democracies. We conclude by discussing the normative implications of our findings and outlining a new research agenda on billionaire politicians.

This overview explains antipsychotic-induced hyperprolactinaemia and offers guidance on the management of this common and underestimated problem in general psychiatric practice.

International organizations (IOs) suffuse world politics, but the International Monetary Fund (IMF) stands out as an unusually important IO. My research suggests that IMF lending is systematically biased. Preferential treatment is largely driven by the degree of similarity between beliefs held by IMF officials and key economic policy-makers in the borrowing country. This article describes the IMF's ideational culture as “neoliberal,” and assumes it to be stable during the observation window (1980–2000). The beliefs of top economic policy-makers in borrowing countries, however, vary in terms of their distance from IMF officials' beliefs. When fellow neoliberals control the top economic policy posts the distance between the means of the policy team's beliefs and the IMF narrows; consequently, IMF loans become less onerous, more generous, and less rigorously enforced. I gathered data on the number of conditions and the relative size of loans for 486 programs in the years between 1980 and 2000. I collected data on waivers, which allow countries that have missed binding conditions to continue to access funds, as an indicator for enforcement. I rely on indirect indicators, gleaned from a new data set that contains biographical details of more than 2,000 policy-makers in ninety developing countries, to construct a measure of the proportion of the top policy officials that are fellow neoliberals. The evidence from a battery of statistical tests reveals that as the proportion of neoliberals in the borrowing government increases, IMF deals get comparatively sweeter.

The distinction between uncertainty and risk, originally drawn by Frank Knight and John Maynard Keynes in the 1920s, remains fundamentally important today. In the presence of uncertainty, market actors and economic policy-makers substitute other methods of decision making for rational calculation—specifically, actors' decisions are rooted in social conventions. Drawing from innovations in financial markets and deliberations among top American monetary authorities in the years before the 2008 crisis, we show how economic actors and policy-makers live in worlds of risk and uncertainty. In that world social conventions deserve much greater attention than conventional IPE analyses accords them. Such conventions must be part of our toolkit as we seek to understand the preferences and strategies of economic and political actors.

The dogwhelk Nucella lapillus experienced localized extinction in the 1980s and 1990s due to the use of tributyltin (TBT) antifoulants, causing imposex in females. The aim of this study was to establish the extent of the return of the species across the mainland coast of central southern England as TBT use has been progressively restricted, and to quantify the extent of imposex impact on the populations present. We surveyed from Poole to Selsey where isolated populations had become extinct, and the Isle of Wight where some populations had persisted. We found evidence that since TBT restrictions, recolonization and colonization by N. lapillus has been rapid. By 2007–2008, of the eleven surveyed mainland sites, seven were colonized, although indications of reduced imposex impacts were mixed. Distribution had also extended on the Isle of Wight and populations were larger with less imposex impact in sites with long term populations. The lack of continuous suitable habitat blocks and the hydrodynamic complexity of the region, leads us to hypothesize that recovery has been facilitated by man-made structures which may be acting as ‘stepping stones’. Populations that have become established on engineered structures such as sea walls, breakwaters and rock groynes demonstrate accelerated recovery in the region as TBT in the environment has generally declined. Sites with suitable substrates and food sources near to ports were either not recolonized or had small populations with imposex evident. For species with a short pelagic larval stage or with direct development, population connectivity between patches of harder substrata along hydrodynamically complex coastlines may be greater than previously thought.