When Rational Sellers Face Nonrational Buyers: Evidence from Herding on eBay
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auctions
biases
rationality
industrial organization
Business
Business Administration, Management, and Operations
Business Intelligence
Cognition and Perception
Cognitive Psychology
Community Psychology
E-Commerce
Marketing
Organizational Behavior and Theory
Sales and Merchandising
Social Psychology
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Abstract
People often observe others' decisions before deciding themselves. Using eBay data for DVD auctions we explore the consequences of neglecting nonsalient information when making such inferences. We show that bidders herd into auctions with more existing bids, even if these are a signal of no-longer-available lower starting prices rather than of higher quality. Bidders bidding a given dollar amount are less likely to win low starting price auctions, and pay more for them when they do win. Experienced bidders are less likely to bid on low starting price auctions. Remarkably, the seller side of the market is in equilibrium, because expected revenues are nearly identical for high and low starting prices.