Based on Turner's (1960) contest- and sponsored-mobility systems, a compreh
ensive model of the determinants of career success was examined. Human capi
tal and motivational variables represented the contest-mobility system wher
eas leader-member exchange and supervisor career mentoring represented the
sponsored-mobility system. Results based on data from 245 supervisor -subor
dinate dyads indicated limited support for the contest-mobility system and
strong support for the sponsored-mobility system. Interestingly, the two fo
rms of sponsorship were differentially related to career outcomes. Specific
ally, leader-member exchange was positively related to salary progression,
promotability, and career satisfaction. Career mentoring, however, was only
related to promotability. Copyright (C) 1999 John Wiley & Sons, Ltd.