A detailed longitudinal dataset is assembled containing annual performance and biographical data for every player over the entire history of professional major league baseball. The data are then aggregated to the team level for the period 1920-2009 in order to test whether teams built on a more...

The traditional Becker/Arrow style model of discrimination depicts majority and minority workers as perfectly substitutable inputs, implying that all workers have the same job assignment. The model is only appropriate for determining whether pay differences between, for example, whites and...