Labor Relations Commons^™

Do Mlb Hitters Boost Performance In Their Contract Year?, Heather M. O'Neill

Business and Economics Faculty Publications

This study focuses on 256 MLB free agent hitters playing under the 2006-2011 CBA to determine whether they boost their offensive performance in their contract year. Prior studies’ results are mixed, depending on the econometric technique used and the choice of the offensive performance measure.

Having multiple year observations per player, one can incorporate the unobserved traits of the players (ability, risk aversion, work ethic, etc.) by using Fixed Effects (FE) estimation. Since these unmeasured player traits are likely to be correlated with observed predictors of performance (games played, playoff contention, age, etc.), traditionally used Ordinary Least Squares (OLS) and …