This chapter presents a selective review of a literature in marketing that analyzes diffusion and pricing over the product life-cycle. I primarily focus on empirical work, and on papers that deal with the dynamics of pricing over time. I discuss how recent empirical work has linked outcomes to...

This chapter presents a selective review of a literature in marketing that analyzes diffusion and pricing over the product life-cycle. I primarily focus on empirical work, and on papers that deal with the dynamics of pricing over time. I discuss how recent empirical work has linked outcomes to...

In a vertically differentiated durable goods duopoly, prices tend to decline over time because the high-quality manufacturer's future product may compete more directly with the other firm's present product than with its own. This removes the standard reason not to cut prices (Stokey, 1979)....

We study implications of habit formation for optimal taxation. First, we show that taxation problems with habit formation can be analyzed using dynamic programming techniques. Second, we derive optimal labor and savings wedges for habit formation preferences. We show that habit formation...