In a widely cited 1995 paper, Aaron Yelowitz concluded that Medicaid eligibility expansions for children were associated with increased labor force participation and reduced welfare participation among single mothers. The authors of the present study, using data from the 1988-96 Current...

In a widely cited 1995 paper, Aaron Yelowitz concluded that Medicaid eligibility expansions for children were associated with increased labor force participation and reduced welfare participation among single mothers. The authors of the present study, using data from the 1988–96 Current...

Using data from a randomized experiment, we find that having a female teacher lowers the math test scores of female primary school students in disadvantaged neighborhoods. Moreover, we do not find any effect of having a female teacher on male students’ test scores (math or reading) or female...

This paper revisits the effect of high school leadership activities on young men’s earnings. Using several data sets and extending a recently developed econometric technique, we show that even a small amount of selection on unobservables explains the entire high school leadership effect on...