We explore the performance of multi-round, price-guided combinatorial auctions for a previously untested class of value profiles in which synergies arise from shared fixed costs. We find that, in many cases, a simulator that bids straightforwardly does well in predicting auction performance, but...

We study three alternative implementations of the Vickrey multi-unit demand auction: Vickrey's original static sealed-bid auction and two dynamic/Ausubel auctions, with and without public dropout information reported during the auction. Although implemented by a weaker solution concept, behavior...

Extensive field evidence shows individuals' decisions in settings involving uncertainty depend on their peers' decisions. One hypothesized cause of peer group effects is social interaction effects: an individual's utility from an action is enhanced by others taking the same action. We employ a...