students' lifetime income by more than $250,000 for the average class- room in our sample. We conclude that good teachers …Are teachers' impacts on students' test scores ("value-added") a good measure of their quality? This question has …' impacts on student achievement and (2) whether high-VA teachers improve students' long-term outcomes. We address these two …

environments across the two areas, we find remarkably consistent results: in families with two or more children, second-born boys … the evidence rules out differences in health at birth and the quality of schools chosen for children. We do find that …

-experimental design based on changes in teaching staff. Using school district and tax records for more than one million children, we find …

students. However, very little empirical work has to date been completed on this topic. This paper provides the first empirical … every third, fourth, and fifth grader in a large school district over four years, we match students' test score gains and … substantial evidence that higher grading standards benefit students. We find that these effects are not uniform: High …

better than third generation immigrants. Among first generation immigrants, the earlier the arrival, the better the students … tend to perform. These patterns of findings hold for both Asian and Hispanic students, and suggest a general pattern of …

improve students' long-term outcomes. Using school district and tax records for more than one million children, we find that … the present value of students' lifetime income by approximately $250,000 per classroom …Are teachers' impacts on students' test scores ("value-added") a good measure of their quality? This question has …

employ data from the universe of children born in Florida between 1994 and 2002 and in Denmark between 1990 and 2001, which …