This paper describes the construction of a large panel data set covering about 2600 firms in the U.S. manufacturing sector for up to twenty years which contains annual data on financial variables, employment, research and development expenditures, and aggregate patent applications. This data set...

This paper investigates the relationship between earnings, schooling, and ability for young men and women who entered the labor force during the late 60s and 70s. The emphasis is on controlling for both observed and unobserved family characteristics, extending a framework developed earlier by...

This paper describes the construction of a large panel data set covering about 2600 firms in the U.S. manufacturing sector for up to twenty years which contains annual data on financial variables, employment, research and development expenditures, and aggregate patent applications. This data set...

This paper investigates the relationship between earnings, schooling, and ability for young men and women who entered the labor force during the late 60s and 70s. The emphasis is on controlling for both observed and unobserved family characteristics, extending a framework developed earlier by...