Cost and Benefits from Infrastructure Competition. Estimating Welfare Effects from Broadband Access Competition

Competition between parallel infrastructures incorporates opposing welfare effects. The gain from reduced deadweight loss might be outweighed by the inefficient duplication of an existing infrastructure. Using data from broadband internet access for Western Europe 2000-2004, this paper investigates which effect prevails empirically. Infrastructure competition between DSL and cable TV had a significant and positive impact on the broadband penetration. Comparing the additional social surplus attributable to cable competition with the cable investments, we conclude that infrastructure competition has not been welfare enhancing. A theoretical model is provided, formalizing why the effect of competition on penetration might be limited.Infrastructure Competition, Service Competition, Broadband, Internet, Cable TV, DSL

On the consistent use of linear demand systems if not all varieties are available

Linear demand formulations for price competition in horizontally differentiated products are sometimes used to compare situations where additional varieties become available, e. g. due to market entry of new firms. We derive a consistent demand system to analyze such situations.Horizontal product differentiation, preferences for variety, market entry

How to Determine whether Regional Markets are Integrated? Theory and Evidence from European Electricity Markets

Prices may di er between regional markets if transport capacities are limited. We develop a new approach to determine to which extent such di erences stem from limited participation in cross-border trader rather than from bottlenecks. We derive a theoretical integration benchmark for the typical case where transportation markets clear before the product markets, using Grossman's (1976) notion of a rational expectations equilibrium. We compare the benchmark to data from European electricity markets. The data reject the integration hypothesis: Capacity prices contain too little information about spot price di erential; this indicates that well informed traders do not engage in cross-border trade

Using Forward Contracts to Reduce Regulatory Capture

A fully unbundled, regulated network fi?rm of unknown efficiency level can undertake unobservable effort to increase the likelihood of low downstream prices, e.g., by facilitating downstream competition. To incentivize such effort, the regulator can use an incentive scheme paying transfers to the ?firm contingent on realized downstream prices. Alternatively, the regulator can propose to the ?firm to sell the following forward contracts: the fi?rm pays the downstream price to the owners of a contract, but receives the expected value of the contracts when selling them to a competitive fi?nancial market. We compare the two regulatory tools with respect to regulatory capture: if the regulator can be bribed to suppress information on the underlying state of the world (the basic probability of high downstream prices, or the type of the firm), optimal regulation uses forward contracts only.Incentive regulation, regulatory capture, virtual power plants

Imperfect Legal Unbundling of Monopolistic Bottlenecks

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 downstream markets. Access prices are regulated but the upstream firm can perform non-tariff discrimination. Under perfect legal unbundling the upstream firm maximizes only own profits; with imperfections it considers to some extend also the profits of its downstream mother. We find that reducing imperfections in legal unbundling (keeping ownership fixed) generally increases total output. Increasing the incumbent's ownership share increases total output if imperfections are sufficiently small, otherwise the effects are ambiguous. Surprisingly, higher ownership shares of the downstream incumbent may sometimes lead to lower degrees of imperfections. Our analysis suggests that consumers may benefit most from legal unbundling with strong regulation and parts of ownership given to a minority outside shareholder.Network industries, regulation, vertical relations, ownership, corruption, sabotage

How to Determine whether Regional Markets are Integrated? Theory and Evidence from European Electricity Markets

Prices may di er between regional markets if transport capacities are limited. We develop a new approach to determine to which extent such di erences stem from limited participation in cross-border trader rather than from bottlenecks. We derive a theoretical integration benchmark for the typical case where transportation markets clear before the product markets, using Grossman's (1976) notion of a rational expectations equilibrium. We compare the benchmark to data from European electricity markets. The data reject the integration hypothesis: Capacity prices contain too little information about spot price di erential; this indicates that well informed traders do not engage in cross-border trade.Market integration; electricity markets; interconnector;competition policy; rational expectations equilibrium

An Economic Analysis of Trade-Secret Protection in Buyer-Seller Relationships

The economic analysis of trade-secret protection has traditionally focused on the interests of companies to conceal information from competitors in order to gain a competitive advantage through trade-secret law. This has neglected cases in which the interest is not in concealing information from competitors but from trading partners. We investigate trade-secret protection in such cases. Frequently, asymmetric information will lead to inefficient trade; at the same time, protecting private information might create incentives for socially desirable investments. We model this trade-off in a simple buyer-seller model and find that the optimal fine for violations of trade secrets is positive. In general, however, the welfare effects of increasing a fine are ambiguous. We discuss conditioning the legal protection on a minimum investment by the informed party to conceal the information and argue that this helps to apply trade-secret protection only when it increases welfare. This rationalizes important features of current legal practic

Using Forward Contracts to Reduce Regulatory Capture

A fully unbundled, regulated network firm of unknown efficiency level can untertake unobservable effort to increase the likelihood of low downstream prices, e.g. by facilitating downstream competition. To incentivize such effort, the regulator can use an incentive scheme paying transfers to the firm contingent on realized downstream prices. Alternatively, the regulator can force the firm to sell the following forward contracts: the firm pays the downstream price to the owners of a contract, but recieves the expected value of the contracts when selling them to a competivitve financial market. We compare the two regulatory tools with respect to regulatory capture: if the regulator can be bribed to suppress information on the underlying state of the world (the basic propability of high downstream prices, or the type of the firm), optimal regulation uses forward contracts only

Using Forward Contracts to Reduce Regulatory Capture

A fully unbundled, regulated network firm of unknown efficiency level can untertake unobservable effort to increase the likelihood of low downstream prices, e.g. by facilitating downstream competition. To incentivize such effort, the regulator can use an incentive scheme paying transfers to the firm contingent on realized downstream prices. Alternatively, the regulator can force the firm to sell the following forward contracts: the firm pays the downstream price to the owners of a contract, but recieves the expected value of the contracts when selling them to a competivitve financial market. We compare the two regulatory tools with respect to regulatory capture: if the regulator can be bribed to suppress information on the underlying state of the world (the basic propability of high downstream prices, or the type of the firm), optimal regulation uses forward contracts only.incentive regulation; regulatory capture; virtual power plants

Two Tales on Resale

In some markets vertically integrated firms sell directly to final customers hut also to independent downstream firms with whom they then compete on the downstream market. It is often argued that resellers intensify competition and benefit consumers, in particular when wholesale prices are regulated. However, we show that (i) resale may increase prices and make consumers worse off and that (ii) standard "retail minus X regulation" may increase prices and harm consumers. Our analysis suggests that this is more likely if the number of integrated firms is small, the degree of product differentiation is low, and/or if competition is spatial