We examine the bidding behavior of institutional investors in initial public offering (IPO) auctions using a hand-collected dataset limit bids. find that majority our sample are “occasional bidders,” who rarely get share allocation. “Regular bidders” minority but account for bulk demand. They bid conservatively, and only few them can be classified as “well-informed place more aggressive bids ho...

T seller’s threshold price in name-your-own-price auctions varies over time. However, consumers must bid without knowing when these variations occur because the threshold price is unobservable to them. This paper uses an analytical model and laboratory auctions to explore how the frequency of changes in the threshold price impacts consumer bidding behavior in name-your-own-price auctions. In pa...

Shill bidding in English auction is the deliberate placing bids on the seller’s behalf to artificially drive up the price of his auctioned item. Shill bidding has been known to occur in auctions of high-value items like art and antiques where bidders’ valuations differ and the seller’s payoff from fraud is high. We prove that privatevalue English auctions with shill bidding can result in a high...

In an agent-based online auction system, a bidding agent can automatically place bids on behalf of a human user according to a user-specified bidding strategy. Current implementations of bidding agents only support a set of simple predefined bidding strategies. In this paper, we introduce a formal bidding strategy model that supports specification of complex bidding strategies for autonomous bi...

P often observe others’ decisions before deciding themselves. Using eBay data for DVD auctions we explore the consequences of neglecting nonsalient information when making such inferences. We show that bidders herd into auctions with more existing bids, even if these are a signal of no-longer-available lower starting prices rather than of higher quality. Bidders bidding a given dollar amount ar...

Beijing attempted to host both the 2000 and 2008 Olympic Games, being unsuccessful in 2000 and successful in 2008. This paper analyzes the influences the Olympic host announcements on Chinese stock market indices. Olympic host announcements may impact the bidding countries’ investors’ sentiments (mood effect) and their rational economic expectations (economic effect); thus, the bidding countrie...

We analyze the competition between auction houses to organize an English auction in the independent private value model with participation costs when the seller is unable to commit not to participate in the same way as any potential buyer through a shill bidding activity. The seller may prefer to contract with auction houses with higher fees since they make the shill bidding activity more costl...

Prospective payment encourages managed care organizations to select low-risk patients. This article models an entitlement program utilizing patient-level competitive bidding to mitigate risk selection. Three mechanisms are tested: uniform payment, pure bidding, and a mix of payment and bidding. Results show selection always occurs under optimal uniform payment, but never under either bidding me...