In particular , age has an inverse effect on career longevity in that players who started at younger ages will enjoy longer careers ( Shulz et al. , 1994 ) .
Previous studies demonstrated that age , player performance and era affected baseball career longevities .
Age has an inverse effect on career longevity in that players who started at younger ages will enjoy longer careers ( Shulz et al. , 1994 ) .
Previous studies demonstrated that age , player performance and era affected baseball career longevities .