One of the great puzzles of Sub-Saharan African economic history is that wheeled transportation was barely used prior to the colonial period. Instead, head porterage was the main method of transportation. The consensus among historians is that this was a rational adaption to the underlying...

The paper presents a model of a monetary union designed to illuminate monetary and exchange rate policy in the West African Monetary Union (UMOA). Emphasis is placed on the interaction of the members of UMOA with each other, through the common central bank, and on their interaction with France...

Using two decades of data from twelve low-income countries in West Africa, we show that dust carried by harmattan trade winds increases infant and child mortality. Health investments respond to dust exposure, consistent with compensating behaviors. Despite these efforts, surviving children still...

Liberalization of tropical agricultural markets has brought globalization, in the sense that all producers now face world rather than domestic prices. Producer prices have tended to rise as a share of fob prices as intermediation costs and tax has declined. However, in conjunction with inelastic...

We conducted a survey covering 20% of villages with 200-1000 population in rural Guinea-Bissau. We interviewed household heads, care-givers of children, and their teachers and schools. We analysed results from 9,947 children, aged 7-17, tested for literacy and numeracy competency. Only 27% of...

Is the persistently high fertility in West Africa today rooted in the decades of forced labor migration under colonial rule? We study the case of Burkina Faso, considered the largest labor reservoir in West Africa by the French colonial authorities. Hundreds of thousands of young men were...

Forests accompany the cities we build. There are an estimated 5.5 billion urban trees in the United States. Globally, about 25 percent of urban land is covered by tree canopy. This study examines urban forests as a policy tool for air pollution mitigation. We study an afforestation program in...

"This paper investigates the impacts of cotton marketing reforms on farm productivity, a key element for poverty alleviation, in rural Zambia. The reforms comprised the elimination of the Zambian cotton marketing board that was in place since 1977. Following liberalization, the sector adopted an...

While cash transfers consistently show large effects on immediate outcomes like consumption, limited access to markets may mute their impact on productive investment. In an experiment in Malawi, we cross-cut cash transfers with an "input fair," designed to reduce transport costs to access...