Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
In a recent paper in the Journal of Human Resources, Dynarski (2008) used data from the 1 percent 2000 Census Public Use Microdata Sample (PUMS) files to demonstrate that merit scholarship programs in Georgia and Arkansas increased the stock of college-educated individuals in those states. This paper replicates the results in Dynarski (2008) but we also find important differences in the results between the 1 percent and 5 percent PUMS, especially for women. We also demonstrate that the authors use of clustered standard errors, given the small number of clusters and only two policy changes, severely understates confidence intervals.