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...

We develop a simple model which determines the optimal timing of school tracking as the outcome of the trade off between the advantages of specialization, which call for early tracking, and the costs of early selection, which lead to later tracking. We calibrate the model for Germany and study...