Bidding behavior and price search in Internet auctions

This paper studies bidding behavior in a dynamic auction setting that is similar to auctions offered on the Internet. I allow bidders to acquire outside prices while the auction is in progress. Searching is costly and bidders are heterogeneous in their search costs. The model generates a tractable equilibrium and gives interpretation to three intuitive bidding patterns that are frequently observed in the data: early, late and multiple bidding. The key feature of the equilibrium is that early bidding is monotone in search cost which leads to efficient sorting.