Training effectiveness is a function of trainee characteristics, training design and contextual factors. Social exchanges in the work environment have received less attention compared with other training effectiveness predictors. We focus on the extent to which leaders (through their relationships and exchanges with followers) influence skill transfer, maintenance and generalization. We also examine two intervening processes (training motivation and outcome expectancy). Our findings, based on surveys from 495 employees, argue for the importance of leader-member exchange for training transfer, with training motivation and outcome expectancy as intervening mechanisms.