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...

There is substantial cross - country variation in secondary school design, with some countries tracking students into different ability schools very early, and other countries with little or no tracking at all. Does tracking length affects school performance, as measured by standardized test...