What often happens in Internet auctions of this type is that there is a flurry of bids in the final stages of the game (i.e., as closing time approaches). The Ebay system, and the Internet in general, is not fast enough to post all these bids. Thus, with about 45 sec left, incoming bids are no longer posted.

Explain what type of auction this "window of no information" simulates, and explain why this may also work to yield high bids for the sellers. What attribute of the artwork are you assuming the product has in this case?