We study an industry with a monopolistic bottleneck (e.g. a transmission network) supplying an essential input to several downstream firms. Under legal unbundling the bottleneck must be operated by a legally independent upstream firm, which may be partly or fully owned by an incumbent active in...

In this paper we consider the problem of financing infrastructure when the regulator faces a budget constraint. The optimal budget-constrained mechanism satisfies four properties. The first property is bunching at the top, that is the more efficient firms produce the same quantity. The second...

The paper studies a generic bilateral trade model with relationship-specific investments. Only the seller invests, and subsequent trade becomes inefficient if his investments are too low. We show that the seller may defect strategically under a fixed-price contract even though he attains any...

In public procurement a temporal separation of award and actual contracting can frequently be observed. In this paper we give an explanation for this institutional setting. For incomplete procurement contracts we show that such a separation may increase efficiency. We show that efficiency can be...

This paper deals with price regulation of a monopolistic distribution grid which sells a license to some retailer. The regulator aims at attaining efficient sale of the license and efficient relationship-specific investments of the agents. The first best can be attained by a sequential...

This paper deals with price--cap regulation of a monopolistic distribution grid which sells a license to some retailer. The sale of the license is a long--term incomplete contract. Both the grid and the licensee engage in relationship--specific investments before the value and costs of the...

Target-cost pricing has been a widely applied formula in defence contracting. If this type of pricing arrangement is chosen, the seller's ex-post profit consists of a fixed payment plus some share of the cost overrun, that is the difference between an ex--ante agreed estimation of the production...

This paper first presents various simple regulatory mechanisms, in particular Vogelsang and Finsinger's iterative mechanism and Shleifer's yardstick Regulation. Unfortunately, in practical applications of these simple mechanisms the regulated utility will be able to dodge the regulator's...

In this paper we consider the problem of regulating an open access essential facility. A vertically integrated firm owns an essential input and operates on the downstream market under the roof of a regulatory mechanism. There is a potential entrant in the downstream market. Both competitors use...

The paper investigates a model where two parties sequentially invest in a joint project (an asset). Investments and the project value are unverifiable, and A is wealth constrained so that an initial outlay must be financed by either agent B or an external investor C, say a bank. We show that an...