This paper analyzes seller characteristics and choices in approximately 1000 eBay auctions for a particular model of PDA. Seller characteristics include frequency of selling, reputation, and the qualities of the product sold. Seller choices include the length of the auction, information provided...

We propose using the information revealed through auctions, including in particular the unsuccessful bids, to identify latent demand. Applied to combinatorial auctions for bundles of goods, this information can identify new bundles with particularly high valuations, expressed by their high...