The increasing emphasis on understanding the antecedents and consequences of customer-to-customer (C2C) interactions is one of the essential developments of customer management in recent years. This interest is driven much by new online environments that enable customers to be connected in numerous new ways and also supply researchers' access to rich C2C data. These developments present an opportunity and a challenge for firms and researchers who need to identify the aspects of C2C research on which to focus, as well as develop research methods that take advantage of these new data. The aim here is to take a broad view of C2C interactions and their effects and to highlight areas of significant research interest in this domain. The authors look at four main areas: the different dimensions of C2C interactions; social system issues related to individuals and to online communities; C2C context issues including product, channel, relational and market characteristics; and the identification, modeling, and assessment of business outcomes of C2C interactions.

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Although many studies report positive effects of corporate social responsibility (CSR) on customer attitudes, recent literature shows that the effectiveness of CSR initiatives critically varies among consumers, brands, and companies. Using 1375 customer responses about 93 brands in 18 industries, we examine how perceived CSR relates to customer attitudes and actual retention 2 years later, and specifically how this relationship may be contingent on brand characteristics. Our results indicate that perceived CSR can indeed compensate for the absence of a strong brand or smaller advertising budgets, but not for lack of innovativeness. Companies that simultaneously do good and innovate are rewarded with more positive customer attitudes and higher levels of customer retention.

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