Concession-making behavior is an essential process in negotiations and auctions and has a critical impact on the outcomes of an exchange. In auctions, concessions relate to deciding on the next bid by bid-makers, while in negotiations they involve proposing next offers by both parties. The purpose of this paper is to empirically investigate concession-making by parties in multi-attribute auctio...

I have been a major participant in spectrum auctions, since December 1993 when the United States was planning for its first spectrum auction. My involvement has been in all aspects of the auctions: advising governments on auction design, advising bidders on auction strategy, and conducting theoretical and empirical research. Since 1993, I have written over one-dozen research papers on spectrum ...

In this paper, we present a new model and mechanisms for auctions in two-sided markets of buyers sellers, where budget constraints are imposed on buyers. Our incorporates polymatroidal environments is applicable to variety models that include multiunit auctions, matching markets, reservation exchange markets. built the network flow by Lawler Martel. Additionally, they feature nice properties su...

In standard auctions with symmetric, independent private value bidders resale creates a role for a speculator—a bidder who is commonly known to have no use value for the good on sale. For second-price and English auctions the efficient value-bidding equilibrium coexists with a continuum of inefficient equilibria in which the speculator wins the auction and makes positive profits. First-price an...

This paper provides an elementary, non-technical, survey of auction theory, by introducing and describing some of the critical papers in the subject. (The most important of these are reproduced in a companion book, The Economic Theory of Auctions, Paul Klemperer (ed.), Edward Elgar (pub.), forthcoming.) We begin with the most fundamental concepts, and then introduce the basic analysis of optima...

Consumers consistently express a willingness to favor socially responsible firms, but will they actually pay more for products linked to charitable donations, green production, and similar activities? To answer this question, we analyze a novel data set that matches identical products sold on eBay via charity and non-charity auctions. Items sold through charity auctions have prices that are 6% ...

Econometric Analysis of Cattle Auctions by Christine Zulehner This paper provides an empirical analysis of cattle auctions taking place in Amstetten, Austria. The particular auctions we focus on are ascending or English auctions. In this market the sellers are usually farmers and the buyers are either farmers as well or resale trade firms. A further characteristic of this market are two large b...

Online auctions have become a popular and effective tool for Internet-based E-markets. We investigate problems and models of optimal adaptive automated bidding in an environment of concurrent online auctions, where multiple auctions for identical items are running simultaneously. We develop new models for a firm where its item valuation derives from the sale of the acquired items via their dema...

The paper studies the e¤ect of ownership links among bidders in auctions. Firstly, it is shown that in ...rst-price, in second-price, and in all-pay auctions, ownership links damage both the seller and society; the bidders too may be impaired by the seller’s strategic reaction. Secondly, the optimal selling procedure is characterized: in sharp contrast with standard auctions, both the seller an...

Auctions with variable supply are multi-unit auctions, in which the seller determines the supply quantity as a function of the bidding. These auctions are used on various markets ranging from Treasury bills and IPOs to rare wine and art. In this work we compare in a common value model the mixed strategy subgame perfect equilibria and the rationalizable strategies of the uniform price and the di...