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Bias and size effects of price-comparison search engines : theory and experimental evidence

By Pedro Pereira

Abstract

We analyze the impact on consumer prices of the size and bias of price comparison search engines. In the context of a model related to Burdett and Judd (1983) and Varian (1980), we develop and test experimentally several theoretical predictions. The experimental results confirm the model’s predictions regarding the impact of the number of firms, and the type of bias of the search engine, but reject the model’s predictions regarding changes in the size of the index. The explanatory power of an econometric model for the price distributions is significantly improved when variables accounting for risk attitudes are introduced

Topics: Search engines, incomplete information, biased information, price levels, experiments., Politica de preços Incerteza(Economia)
Publisher: Escola de Pós-Graduação em Economia da FGV
Year: 2005
OAI identifier: oai:agregador.ibict.br.RI_FGV:oai:bibliotecadigital.fgv.br:10438/12641
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