The General Educational Development (GED) credential has become the primary 'second chance' route to high school certification for school dropouts in the United States. Despite the widespread use of the GED, however, bias due to self-selection has limited our knowledge about the effects of the...

In this paper, we exploit an exogenous change in the passing standard required to obtain a General Educational Development (GED) credential to identify the impact of the GED on the quarterly earnings of male dropouts, utilizing the Texas Schools Micro Data Panel (TSMP). These unique data contain...

The General Educational Development (GED) credential has become the primary 'second chance' route to high school certification for school dropouts in the United States. Despite the widespread use of the GED, however, bias due to self-selection has limited our knowledge about the effects of the...

"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...

"This paper studies empirically the relationship between trade policy and individual income risk faced by workers, and uses the estimates of this empirical analysis to evaluate the welfare effect of trade reform. The analysis proceeds in three steps. First, longitudinal data on workers are used...

"The objective of the paper is to answer an often-asked question : if tariff rates are reduced, what will happen to wage inequality ? We consider two types of wage inequality : between occupations (skills premium), and between industries. We use two large data bases of wage inequality that have...