Attribute Search in Online Retailing
利用comScore面板数据，研究发现产品种类越多，消费者搜索强度越低，均衡价格反而上升，表明产品范围扩大可能产生反竞争效应。
Online retailing has created an empirical opportunity to examine consumer search behavior using click stream data. In this article we examine the implications of greater variety online for consumer search intensity, and equilibrium prices. We test our hypothesis using consumer data on online search and purchase behavior from the comScore Web Behavior Panel. We find that search intensity systematically decreases in categories with broader product ranges, and equilibrium prices rise. Our findings suggests that broader product ranges in online retail markets can produce anti‐competitive effects that are mediated through equilibrium responses in consumer search behavior.