Past studies estimating the marginal revenue products of baseball players have assumed individual players' hitting performances to be independent of teammate spillovers. However, the baseball community's widely held belief in “protectionâ€â€”that a good (bad) player can improve...

In baseball, allowing a designated hitter (DH) to bat for the pitcher creates the potential for moral hazard among pitchers, who may then hit more batters without the fear of retaliation by the opposing team. The use of the DH in only one of Major League Baseball's two leagues provides a natural...

Past studies estimating the marginal revenue products of baseball players have assumed individual players' hitting performances to be independent of teammate spillovers. However, the baseball community's widely held belief in "protection" - that a good (bad) player can improve (diminish) the hit...