Munich Personal RePEc Archive

Improved Information in Search Markets

Zhou, Jidong (2020): Improved Information in Search Markets.


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This paper studies how an improved information environment affects consumer search and firm competition. We find conditions for information improvement to have unambiguous impacts on search duration, price, and consumer welfare. In many cases consumers benefit from information improvement regardless of how it affects the market price, but there are also cases where information improvement raises price significantly so that consumers suffer from it. Our model provides a unified way to consider the market implications of various types of information improvement such as search advertising, personalized recommendation, filtering, and new display technology.

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