Evaluating Pricing Strategy Using e-Commerce Data: Evidence and Estimation Challenges

Details Evaluating Pricing Strategy Using e-Commerce Data: Evidence and Estimation Challenges Evaluating Pricing Strategy Using e-Commerce Data: Evidence and Estimation Challenges

2006-09-06

arxiv.org/abs/math/0609170v1

Statistical Science 2006, Vol. 21, No. 2, 131-142

Mathematics

Statistics Theory

Published at http://dx.doi.org/10.1214/088342306000000187 in the Statistical Science (http://www.imstat.org/sts/) by the Insti

Scientific paper

10.1214/088342306000000187

As Internet-based commerce becomes increasingly widespread, large data sets about the demand for and pricing of a wide variety of products become available. These present exciting new opportunities for empirical economic and business research, but also raise new statistical issues and challenges. In this article, we summarize research that aims to assess the optimality of price discrimination in the software industry using a large e-commerce panel data set gathered from Amazon.com. We describe the key parameters that relate to demand and cost that must be reliably estimated to accomplish this research successfully, and we outline our approach to estimating these parameters. This includes a method for ``reverse engineering'' actual demand levels from the sales ranks reported by Amazon, and approaches to estimating demand elasticity, variable costs and the optimality of pricing choices directly from publicly available e-commerce data. Our analysis raises many new challenges to the reliable statistical analysis of e-commerce data and we conclude with a brief summary of some salient ones.

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