Research continues to find large differences in student achievement gains across teachers’ classrooms. The variability in teacher effectiveness raises the stakes on identifying effective teachers and teaching practices. This paper combines data from classroom observations of teaching practices...

Does the labor market reward cognitive skill differences among those with the fewest educational attainment-high school dropouts? This paper explores this question using a data set that provides information on the universe of dropouts who last attempted the GED exams in Florida and New York in...

This paper analyzes differences in welfare utilization between immigrants and natives in Sweden using a large panel data set for the years 1990 to 1996. We find that immigrants use welfare to a greater extent than natives and that differences cannot be explained by observable characteristics....