Many companies consider investments in complaint handling as means of increasing customer commitment and building customer loyalty. Firms are not well informed, however, on how to deal successfully with service failures or the impact of complaint handling strategies. In this study, the authors find that a majority of complaining customers were dissatisfied with recent complaint handling experiences. Using justice theory, the authors also demonstrate that customers evaluate complaint incidents in terms of the outcomes they receive, the procedures used to arrive at the outcomes, and the nature of the interpersonal treatment during the process. In turn, the authors develop and test competing hypotheses regarding the interplay between satisfaction with complaint handling and prior experience in shaping customer trust and commitment. The results support a quasi “brand equity” perspective—whereas satisfaction with complaint handling has a direct impact on trust and commitment, prior positive experiences mitigate, to a limited extent, the effects of poor complaint handling. Implications for managers and scholars are discussed.

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Customer referral programs are an effective means of customer acquisition. By assessing a large-scale customer data set from a global cellular telecommunications provider, the authors show that participation in a referral program also increases existing customers' loyalty. In a field experiment, recommenders' defection rates fell from 19% to 7% within a year, and their average monthly revenue grew by 11.4% compared with a matched control group. A negative interaction between referral program participation and customer tenure reveals that the loyalty effect of voicing a recommendation is particularly pronounced for newer customer-firm relationships. A laboratory experiment further demonstrates that referral programs with larger rewards strengthen attitudinal and behavioral loyalty, whereas smaller rewards affect only the behavioral dimension. This article contributes to our theoretical understanding of the roles played by the commitment-consistency principle and positive reinforcement theory as mechanisms underlying the effectiveness of customer referral programs.