Competition-Based Dynamic Pricing in Online Retailing: A Methodology Validated with Field Experiments

• 成果类型: Article
• 署名作者: Fisher, Marshall; Gallino, Santiago; Li, Jun
• 署名单位: University of Pennsylvania; Dartmouth College; University of Michigan System; University of Michigan
• 刊物名称: MANAGEMENT SCIENCE
• ISSN/ISSBN: 0025-1909
• DOI: 10.1287/mnsc.2017.2753
• 发表日期: 2018
• 页码: 2496-2514
• 关键词: online retailing; field experiment; competition-based dynamic pricing; Stockouts; Consumer choice

摘要

A retailer following a competition-based dynamic-pricing strategy tracks competitors' price changes and then must answer the following questions: (i) Should we respond? (ii) If so, to whom? (iii) How much of a response? (iv) And on which products? The answers require unbiased measures of price elasticity as well as accurate estimates of competitor significance and the extent to which consumers compare prices across retailers. There are two key challenges to quantify these factors empirically: first, the endogeneity associated with almost any type of observational data, where prices are correlated with demand shocks observable to pricing managers but not to researchers, and second, the absence of competitor sales information, which prevents efficient estimation of a full consumer-choice model. We address the first issue by conducting a field experiment with randomized prices. We resolve the second issue by exploiting the retailer's own and competitors' stockouts as a source of variation to the consumer choice set, in addition to variations in competitors' prices. We estimate an empirical model capturing consumer choices among substitutable products from multiple retailers. Based on the estimates, we propose and test a best-response pricing strategy through a carefully controlled live experiment that lasts five weeks. The experiment documents an 11% revenue increase while maintaining a margin above a retailer-specified target.