Shills and snipes

Online auctions with a fixed end-time often experience a sharp increase in bidding towards the end despite using a proxy-bidding format. We provide a novel explanation of this phenomenon under private values. We study a correlated private values environment in which the seller bids in her own auction (shill bidding). Bidders selected randomly from some large set arrive randomly in an auction, then decide when to bid (possibly multiple times) over a continuous time interval. A submitted bid arrives over a continuous time interval according to some stochastic distribution. The auction is a continuous-time game where the set of players is not commonly known, a natural setting for online auctions. We show that there is a late-bidding equilibrium in which bids are delayed to the latest instance involving no sacrifice of probability of bid arrival, but shill bids fail to arrive with positive probability, and in this sense optimal late bidding serves to snipe the shill bids. We show conditions under which the equilibrium outcome is unique. Our results suggest that under private values, the case against shill-bidding might be weak

The Ithacan, 1981-11-05

https://digitalcommons.ithaca.edu/ithacan_1981-82/1008/thumbnail.jp

Spartan Daily, March 27, 1992

Volume 98, Issue 45https://scholarworks.sjsu.edu/spartandaily/8258/thumbnail.jp

Online Auctions

The economic literature on online auctions is rapidly growing because of the enormous amount of freely available field data. Moreover, numerous innovations in auction-design features on platforms such as eBay have created excellent research opportunities. In this article, we survey the theoretical, empirical, and experimental research on bidder strategies (including the timing of bids and winner's-curse effects) and seller strategies (including reserve-price policies and the use of buy-now options) in online auctions, as well as some of the literature dealing with online-auction design (including stopping rules and multi-object pricing rules).

The Montclarion, October 19, 2006

Student Newspaper of Montclair State Universit

A QUALITATIVE EXAMINATION OF PROSTATE CANCER TREATMENT DECISION-MAKING AMONG BLACK MEN

This ethnographic study explored the experience of treatment decision-making among urban Black men who were diagnosed with prostate cancer in San Diego, California. Specifically, this research was conducted to further understand the decision-making process among Black men and the barriers they face when making treatment decisions about prostate cancer. The study is important because prostate cancer disproportionately affects Black men in the United States, and yet they are underrepresented in research studies (Randolph, Coakley, & Shears, 2018). These inequities are poorly understood and need considerable analysis and exploration. Still unclear is the possible effect of historical trauma or negative healthcare experiences on these treatment decisions. Findings revealed that Black men diagnosed with prostate cancer need a trusting patient-provider relationship, accurate and complete treatment information, and enough time to make effective treatment decisions