Price comparison websites, where consumers can compare prices at a search cost that is close to zero, have become increasingly common around the world. Using daily information on prices, click-throughs, and the number of retailers for a sample of consumer electronics and durable goods over a...

This article examines how the consumer's search cost and filtering on a retail platform affect the platform, the third-party sellers, and the consumers. We show that, given the platform's percentage referral fee, a lower search cost can either increase or lower the platform's profit. By...

This paper identifies patterns of cross-sectional and temporal price dispersion-in the Spanish online grocery retail market-and evaluates the extent to which search costs and chain heterogeneity explain such dispersion. We build a data set comprising 836,074 prices for the most popular grocery...