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Roaming in the Mobile Internet: when coverage sharing agreements call for regulation
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2003-06)
We examine competition in Mobile Internet services, when operators bargain over the coverage sharing and their reciprocal roaming charge. Results show that in equilibrium operators cover the overall territory entirely and ...
How much efficiency gains and price reductions for an efficiency defense? 'Quanto Basta'
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2004)
Potential efficiency gains due to a merger can be used by competition authorities to judge upon proposed mergers. In a world where agents’ efforts, observable or unobservable, affect the success of a production cost reducing ...
Merging to License: Internal vs. External Patentee
(2003-01)
In this paper, we endogenize the decision of a research laboratory that owns a patented process innovation on whether to remain independent as an external patentee or to merge with a manufacturing firm, becoming an internal ...
A Simple Model of Anticompetitive Vertical Integration
(2003-01)
The result of neutrality of vertical integration for competition postulated by the Chicago School can be supported by a benchmark model with (1) an upstream monopolist, (2) homogeneous goods downstream and (3) observable ...
Moral Hazard and the Internal Organization of Joint Research
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2003-06)
This paper analyzes the impact of agency problems on two entrepreneurs’ choice whether to carry out a stand-alone or a joint project. A joint project can be conducted by a single or both entrepreneurs’ research units, which ...
Product Differentiation with Consumer Arbitrage
(2003-03)
We analyze the consequences of consumers behavior concerning personal arbitrage in a spatial discrimination context where firms know the consumers distribution but cannot distinguish them by location. The firms' equilibrium ...
A Supply Function Competition Model for the Spanish Wholesale Electricity Market
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2005-10)
We model the Spanish wholesale market as a multiplant linear supply function competition model. According to the theory, the larger generators should have supply curves for each plant which are to the left of the supply ...
Market Power in the Spanish Electricity Auction
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2005)
We use hourly bid data from the Spanish day-ahead electricity auction to obtain a lower bound measure of generators' market power. Our method is not based on cost estimates but rather on the different behavior of strategic ...
Computing abuse related damages in the case of new entry: An illustration for the Directory Enquiry Services market
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2006-07)
A number of European countries, among which the UK and Spain, have opened up their Directory Enquiry Services (DQs, or 118AB) market to competition. We analyse the Spanish case, where both local and foreign firms challenged ...
Strategic Behavior and Collusion: An Application to the Spanish Electricity Market
(University of the Basque Country, Department of Foundations of Economic Analysis II, 2005)
The paper has two major contributions to the theory of repeated games. First, we build a supergame oligopoly model where firms compete in supply functions, we show how collusion sustainability is affected by the presence ...