In this paper, we consider how rich sources of information on consumer choice can help to identify demand parameters in a widely used class of differentiated products demand models. Most important, we show how to use “secondâ€choice†data on automotive purchases to obtain good...

• Youth unemployment in South Africa is high, differs substantially by race group and is increasing. In 2012, close to two-thirds of young Africans were broadly unemployed. Over the four years prior to this the unemployment rate had increased by almost ten percentage points. • A wage subsidy...

We use econometric methods based on the propensity score to estimate the causal effect of HIV status on employment outcomes in South Africa. Relying on rich data from a national survey, which included HIV testing, we control for systematic differences between HIV-positive and HIV-negative...

We add to the methods for conditioning out serially correlated unobserved shocks to the production technology. We build on ideas first developed in Olley and Pakes (1996). They show how to use investment to control for correlation between input levels and the unobserved firm-specific...

This paper investigates two explanations for why industries might become more productive over time. The first explanation, termed the real productivity case,' is one in which firms become more productive and this leads to more productive industries. The second explanation, termed the...

This paper uses household-level data from Ethiopia to investigate the impact of food aid on the poor. We find that food aid in Ethiopia is "pro-poor." Our results indicate that (i) net buyers of wheat are poorer than net sellers of wheat, (ii) there are more buyers of wheat than sellers of wheat...