Intertemporal Price Discrimination with Complementary Products: E-Books and E-Readers

Hui Li ()
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Hui Li: Tepper School of Business, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213

Management Science, 2019, vol. 67, issue 6, 2665-2694

Abstract: This paper studies intertemporal price discrimination (IPD) with complementary products in the context of e-readers and e-books. Using individual-level data (2008–2012), I estimate a dynamic demand model for e-reader adoption and subsequent book quantity, reading format, and retailer choices in several book genres. I use the estimates to simulate a monopolist’s optimal dynamic pricing strategies when facing forward-looking consumers. The results illustrate how skimming/penetration pricing incentives for e-readers and harvesting/investing incentives for e-books interact in this novel setting. The optimal joint IPD strategy is skimming for e-readers and investing for e-books. Counterfactual results suggest that combining IPD with complementary product pricing improves firm profitability because it attenuates the limitations of each pricing approach. In a single-product IPD setting, firms’ pricing power is limited when consumers anticipate future price changes and delay purchases. Adding complementary products offers firms two pricing instruments; opposite price trajectories provide conflicting incentives for consumers, limiting intertemporal arbitrage. In a static complementary product setting, firms’ pricing power is limited when the relative elasticity between the two products is heterogeneous and conflicting among consumers. Adding IPD sorts heterogeneous consumers into different periods and reduces the need to balance across consumer types. This paper was accepted by Matthew Shum, marketing.

Keywords: intertemporal price discrimination; complementary products; e-book market; skimming and penetration pricing; harvesting and investing (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (14)

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