Krueger (1999)
The do file and data set linked below create the estimates in Table 8.2.1. The data we used are from
http://www.heros-inc.org/data.htm
which has the public use version of the STAR data. The public use data doesn't have class identifiers, so these are imputed (based on school characteristics, experimental group, and teacher characteristics). Note that our analysis of these data uses the BRL and Moulton routines linked below.