State capacity matters for growth. I test Bates’ explanation of pre-colonial African states. He argues that trade across ecological boundaries promoted states. I find that African societies in ecologically diverse environments had more centralized states. This is robust to reverse causation,...

With more than ten million children out of school, Nigeria is the country furthest away from universal primary education. Low access to school is concentrated in the north of the country where a tradition of religious education has been seen as both a constraint and an opportunity. This paper...

This paper investigates the role of risk-aversion in the allocation of workers between formal and informal jobs in Ghana. In the model I propose risk-averse workers can opt between the free-entry informal sector and queuing for formal occupations. Conditional on identifying the riskier option,...

The conventional view is that an increase in the value of a natural resource can lead to private property over it. Many Igbo groups in Nigeria, however, curtailed private rights over palm trees in response to the palm produce trade of the nineteenth and early twentieth centuries. I present a...

Many recent descriptive studies find convex schooling-earnings profiles in developing countries. In these countries forward-looking students should attach option values to completing lower levels of schooling. Another option value may arise due to the uncertain economic environment in which the...

This paper formalises an unproven source of ordinary least squares estimation bias in standard linear-in-means peer effects models. I derive a formula for the magnitude of the bias and discuss its underlying parameters. I show the conditions under which the bias is aggravated in models adding...

We experimentally investigate the extent to which social observability of one’s actions and the possibility of social non-monetary judgment affect the decision to engage in rule breaking behavior. We consider three rule breaking scenarios — theft, bribery and embezzlement — in the absence...

Motivated by a simple model, I use DHS data to test nine hypotheses about the prevalence and decline of African polygamy. First, greater female involvement in agriculture does not increase polygamy. Second, past inequality better predicts polygamy today than does current inequality. Third, the...

We use data from the Ethiopia Rural Household Survey and the Ethiopian Central Statistics Agency to demonstrate a set of techniques for estimating optimal investment allocation in smallholder farming. The approaches treat farming tasks, constraints, and investments as a portfolio problem,...

This paper studies the distributional impact of commodity price shocks over the both the short and very long run. Using a GARCH model, we find that Australia experienced more volatility than many commodity exporting developing countries over the periods 1865-1940 and 1960-2007. A single equation...