Raising the Bar: Certification Thresholds and Market Outcomes
Published Web Location
https://www.aeaweb.org/articles?id=10.1257/mic.20210179Abstract
Certification of sellers by trusted third parties helps alleviate information asymmetries in markets, yet little is known about the impact of a certification’s threshold on market outcomes. Exploiting a policy change on eBay, we study how a more selective certification threshold affects the distribution of quality and incumbent behavior. We develop a stylized model that shows how changes in selectivity change the distribution of quality and prices in markets. Using rich data from hundreds of online categories on eBay.com, we find support for the model’s hypotheses. Our results help inform the design of certification selectivity in electronic and other markets.
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