We construct a model of participation and bidding at multi-unit, sequential, clock auctions when bidders have multi-unit demand. We describe conditions sufficient to characterize a symmetric, perfect-Bayesian equilibrium and then demonstrate that this equilibrium induces an efficient allocation....

This document seeks to lay the groundwork for a government policy on free and open source software. We briefly characterize the extent of the open source software phenomenon. We analyse its pros and cons for the government, in its role as both an engine of economic development and a large user...

Ce rapport présente le bilan de la première phase du projet « Acquisitions Publiques par Enchères Électroniques Renversées et Ouvertes » financé en partie par le Conseil du Trésor du Gouvernement du Québec. Il y est fait état des principales propositions de réforme aux procédures...

Ce texte vise à circonscrire les fondements d'une politique gouvernementale à l'égard du logiciel libre et ouvert (open source software). Nous caractérisons brièvement l'ampleur du phénomène du logiciel libre et nous en analysons les avantages et inconvénients pour le gouvernement tant...

We analyze optimal trading mechanisms in environments where each trader owns some units of a good to be traded and may be either a seller or a buyer, depending on the realization of privately observed valuations. First, the concept of virtual valuation is extended to ex ante unidentified...

In this paper, we propose a design for an an economically efficient, optimized, centralized, multi-lateral, periodic commodity market that addresses explicitly three issues: (i) substantial transportation costs between sellers and buyers; (ii) non homogeneous, in quality and nature, commodities;...

Our objective in this paper is to illustrate and better understand the unavoidable arbitrage between incentives and flexibility in contexts of asymmetric information and to characterize the general features of an appropriate response to this challenge. We show that procedures and institutions in...