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Drawing on the literature on buyers' uncertainty in preference and product knowledge, the authors make, and empirically test, the proposition that an individual consumer's reservation price for a product is more meaningfully and accurately represented as a range than as a single point. Given this conceptualization, they propose an approach for incentive compatible elicitation of an individual's reservation price range (ICERANGE) that builds on the Becker, DeGroot, and Marschak (BDM, 1964) point-of-purchase method. Two empirical applications of the approach provide an assessment of its practicality and its predictive performance relative to current methodologies for reservation price elicitation. Results demonstrate that the proposed method significantly outperforms the benchmark approaches in terms of predictive validity, while yielding valuable incremental information about uncertainty in product valuation.

Proactive postsales service (PPS) refers to a supplier taking the initiative to contact a customer to provide service after a sale is complete. It is argued that PPS leads to faster delivery of service to a broader cross-section of customers than customer-initiated postsales service, or reactive postsales service. The authors argue that mental frames of customers and suppliers engaged in PPS are more positive and open than mental frames of those engaged in customer-initiated service. On the basis of nine focus groups with 94 managers in both business-tobusiness and business-to-consumer settings, the authors propose three main dimensions of PPS: (1) proactive prevention, (2) proactive education, and (3) proactive feedback seeking. They argue that PPS leads not only to favorable customer-level outcomes (e.g., customer satisfaction) but also to favorable supplier-level outcomes (e.g., greater innovativeness, new product success rate). The authors propose that the value of PPS varies depending on the product's life-cycle stage, its transaction extensiveness, and network externality. In addition, the value of PPS varies depending on a customer's usage intensity, openness to experience, and market mavenism. Some key challenges with PPS pertain to implementation issues, such as privacy intrusion, expectation escalation, user identification, and contact routinization. If neglected, these can result in PPS leading to negative rather than positive outcomes. The authors develop guidelines for addressing these challenges and implementing PPS effectively in both business-to-business and business-to-consumer contexts.

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