We study the origins of adult mental health using early life income fluctuations.  Combining a time series of real producer prices of cocoa with a nationally representative household survey in Ghana, we show that a one standard deviation rise in the cocoa price in early life decreases the...

Self-selection into healthcare options biases estimates of the effects of healthcare on health outcomes. We exploit exogenous variation in the cost of formal-sector care to show that the use of such care improves short-term health outcomes for acutely ill children in Tanzania. Better...

Standard theories of resource allocation within the household posit that parents’ investments in their children reflect a combination of children’s endowments and parents’ preferences for child quality. We study how changes in children’s cognitive endowments affect the distribution of...

We study the origins of adult mental health using early life income fluctuations. Combining a time series of real producer prices of cocoa with a nationally representative household survey in Ghana, we show that a one standard deviation rise in the cocoa price in early life decreases the...

We show that psychological well-being in adulthood varies substantially with circumstance in early life.  Combining a time series of real producer prices of cocoa with a nationally representative household survey in Ghana, we find that a one standard deviation rise in the cocoa price in early...

We estimate the effects of higher quality healthcare usage on health, labor supply and schooling outcomes for sick individuals in Tanzania. Using exogenous variation in the cost of formal sector healthcare to predict treatment choice, we show that using better quality care improves health...

Self-selection into healthcare options on the basis of severity likely biases estimates of the effects of healthcare choice on health outcomes. Using an instrumental variables strategy which exploits exogenous variation in the cost of formal-sector care, we show that using such care to treat...

Models of the agricultural household have traditionally relied on assumptions regarding the complementarity or substitutability of family labor inputs. We show how data on time allocations, health shocks and corresponding treatment choices can be used to test these assumptions. Data from...

Suppression of the slave trade after 1807 increased the incidence of conflict between Africans.  We use geo-coded data on African conflicts to uncover a discontiuous increase in conflict after 1807 in areas affected by the slave trade.  In West Africa, the slave trade declined.  This...

African societies exported more slaves in colder years.  Lower temperatures reduced mortality and raised agricultural yields, lowering slave supply costs.  Our results help explain African participation in the slave trade, which predicts adverse outcomes today.  We use an annual panel of...