In this dissertation, I explore bidders’ behavior in multiple auctions which are conducted sequentially or simultaneously. The first and the second chapters examine buyers’ bidding behaviors in an environment of multiple simultaneous auctions and show that the wildly-used assumption of proxy...

In Chapter 1, I analyze a setting where a pair of retailers which sell unrelated products at the same location (e.g., a strip mall) compete with other retailers located at a different strip mall across town by jointly introducing a bundling discount while independently setting their respective...