We model individual careers in sports and games from initial entry to eventual exit or success as a discrete-choice, finite-horizon optimization problem. We apply this model to the international game of chess and study cross-country differences in the relative success of players. While we find...

How valuable are cognitive and social abilities for entrepreneurs' incomes as compared to employees? We answer three questions: (1) To what extent does a composite measure of ability affect an entrepreneur's earnings relative to employees? (2) Do different cognitive abilities (e.g. math ability,...

Models in which employers learn about the productivity of young workers, such as Altonji and Pierret (2001), have two principal implications: First, the distribution of wages becomes more dispersed as a cohort of workers gains experience; second, the coefficient on a variable that employers...