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Convergence in the electronics sector has enabled the addition of disparate new functionalities to existing base products (e.g., adding mobile television to a cell phone or Internet access to a personal digital assistant). This research investigates the role of two factors—(1) the goal congruence between the added functionality and the base and (2) the nature of the base product (utilitarian versus hedonic)—on the evaluation of such convergent products (CPs). The author proposes that the evaluation of CPs with a utilitarian versus hedonic base is subject to an asymmetric additivity effect. Specifically, whereas CPs with a utilitarian base gain more from adding an incongruent, hedonic functionality than a congruent, utilitarian one, CPs with a hedonic base gain less from an incongruent, utilitarian addition than a congruent, hedonic one. This asymmetry is because hedonic additions enhance the pleasure of using a …