Learning to bid, but not to quit – Experience and Internet auctions

A classic argument in economics is that experience in the market place will eliminate mistakes and cognitive biases. Internet auctions are a popular market were some bidders gather extensive experience. In a unique data set from a Scandinavian auction site I question if and what bidders learn. At face value experienced bidders do adapt better bidding strategies. However, the so-called pseudo-endowment effect does not disappear. Regardless of their experience, bidders will be inclined to increase their willingness to pay as a response to having had “ownership” (the leading bid) before being outbid. Thus, this data can confirm that feedback, and especially negative feedback, seems to be a critical component in learning.