This research explores the historical roots of the division of labor in pre-modern societies. It advances the hypothesis and establishes empirically that intra-ethnic diversity had a positive effect on the division of labor across ethnicities in the pre-modern era. Exploiting a variety of...

Bringing together the classic defense of liberty and democracy, the political economy of hierarchy, endogenous growth theory, and the new institutional economics on growth, we propose a new institutional theory that identifies democracy's unique advantage in prompting economic growth. We contend...

Bringing together classic defense of liberty and democracy, the political economy of hierarchy, endogenous growth theory, and the new institutional economics on growth, we propose a new institutional theory that identifies democracy's unique advantage in prompting economic growth. We contend...

In all modern bureaucracies, politicians retain some discretion in public employment decisions, which may lead to frictions in the selection process if political connections substitute for individual competence. Relying on detailed matched employer-employee data on the universe of public...

Beliefs in witchcraft, or the ability of certain people to intentionally cause harm via supernatural means, have been documented across societies all over the world. Extensive ethnographic research on this phenomenon over the past century explored the many roles of witchcraft beliefs in...

Hopes for development aid remain high among Western politicians and pundits, but the evidence is depressing. Foreign aid has on average probably no effect on long-run growth. To understand the failure of many development projects, we need a deeper consideration of the failure of top-down...

We construct a model of "embedded autonomy," the idea that closeness of bureaucrats and business people may lead to growth-promoting policies by the government, though at the risk of leading to crony capitalism. We analyze how the level of monitoring to control corruption and the weight given to...

Over three decades after market-oriented structural reforms, termed "Washington consensus" policies, were first implemented, we revisit the evidence on policy adoption and the effects of these policies on socio-economic performance in sub-Saharan African countries. We focus on three key...

Institutions of justice, like prisons, can be used to serve economic and other extrajudicial interests, with lasting deleterious effects. We study the effects on incarceration when prisoners are used primarily as a source of labor using evidence from British colonial Nigeria. We digitized...

I develop a neoclassical growth model in which rent seeking impacts negatively on productivity and welfare because it discourages the accumulation of social infrastructure. I estimates the fraction of resources wasted in rent seeking for a sample of 149 countries. On average, countries in the...