Identifying Consumer-Welfare Changes when Online Search Platforms Change Their List of Search Results

Ryan Martin
"Online shoppers are guided by search platforms: consumers type a search phrase into the platform’s query box, and the platform chooses how products appear in response. While search platforms may choose responses that help consumers find products more efficiently, they may also have incentives to mislead consumers. For example, search platforms may organize responses to favor their own products over third-party products that better suit consumer needs. This paper uses a search-platform experiment to determine...
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