While the colloquial literature on generations has become a quilt of clichés, attempts to systematically examine generational differences in the workplace have been scarce and the results inconsistent. In this study, we use social exchange theory to investigate whether membership in the Baby Boomers versus the Generation X group influences the relationships of organization- and colleague-directed support and commitment with organizational citizenship behavior. By means of a multisample analysis, we show that both cohorts ultimately share more resemblances than dissimilarities. However, our findings support the popular belief that Generation X is less willing to exchange desirable work outcomes for employer support. Implications are discussed.