This article studies the design of optimal mechanisms to regulate entry in natural oligopoly markets, assuming the regulator is unable to control the behavior of firms once they are in the market. We adapt the Clarke-Groves mechanism, characterize the optimal mechanism that maximizes the...

We consider auction games where, prior to the auction, bidders spend resources to increase their valuations. The market game is solved by solving an equivalent auxiliary social choice problem. We show that standard auctions are fully efficient, whereas reserve price requirements entail a double...

In many auctions, the auctioneer is an agent of the seller. This delegation invites corruption. In this paper we propose a model of corruption, examine how corruption affects the auction game, how the anticipation of corruption affects bidding, and how it altogether changes the revenue ranking...

A number of shortcomings in Germany’s efforts to contain the spread of the coronavirus, including fraudulent testing, vaccination fraud and insufficient testing capacity have been identified and need to be remedied before another wave or worse, another pandemic. This paper examines the...

Suppose a firm uses inputs that are substitutes. Each input is supplied by a single contractor. The firm would like to make suppliers compete. However, since inputs are imperfect substitutes, resorting to winner-take-all competition may not be an attractive option. We allow the firm to use a...

This paper evaluates the typically applied rules for awarding R&D subsidies. We identify two sources of inefficiency: the selection based on a ranking of individual projects, rather than complete allocations, and the failure to induce competition among applicants in order to extract and use...

The literature on R&D contests implicitly assumes that contestants submit their innovation regardless of its value. This ignores a potential adverse selection problem. The present article analyzes the procurement of innovations when the procurer cannot commit himself to never bargain with...

We consider licensing of non-drastic innovations by a patent holder who interacts with a potential licensee in a downstream market. We compare two kinds of license contracts: per unit and ad valorem royalties, combined with fixed fees. Assuming that antitrust authorities apply the same principle...

We reconsider the optimal licensing of technology by an incumbent firm in the presence of multiple potential licensees. In a first step we consider the standard case of one license and show that competition among potential licensees has a drastic effect on optimal two-part tariff contracts. We...