Competition Authority

Other Publications

• Interim Report on the Liquid Fuel and Bottled Gas Sectors in Portugal
  AdC
  

• Report by the Competition Authority on the Fuel Market in Portugal
  AdC
  

• Cost and Demand Characteristics of Portuguese Telecom Sector
  by William Greene, New York University
  

• Public Policy Issues for the Portuguese Telecom and Cable TV sector
  by Nicholas Economides, New York University
  

• Roundtable on Ensuring Access to Key Capacity for New Entrants - Portugal
  By AdC
  

• A Comparative Overview of the Progress Achieved to Date in the Construction of the EC Internal Energy Market
  by João Lopes and João Gata, Portuguese Competition Authority
  

• Market Power and Efficiency in Cards Payment Systems: A Comment on Rochet and Tirole
  by Luis Cabral
  

• A Primer on Payment Cards
  by Jean-Charles Rochet and Jean Tirole
  

• Contribution of the Competition Authority for the Meeting “Energy Day” organized by the European Commission, Brussels, September 21st, 2004
  AdC
  

• Study on Electricity and Gas Markets in Portugal - Final Report
  by Cambridge Economic Policy Associates, Ltd
  

Working Papers

• WP nº 38 Bundled Discounts by Independent Producers of Vertically Differentiated Goods
  by Duarte Brito and Hélder Vasconcelos
  

• WP nº 37 Asymmetries in the adjustment of motor diesel and gasoline pump prices in Europe
  by Jorge Rodrigues
  

• WP nº36 A Simple Nonparametric Estimator for the Distribution of Random Coefficients in Discrete Choice Models
  by Patrick Bajari, Jeremy T. Fox, Kyoo il Kim and Stephen Ryan
  

• WP nº35 Incentives to Invest and to Give Access to Non-Regulated Next Generation Networks
  by Duarte Brito, Pedro Pereira and João Vareda
  

• WP nº34 Can Two-Part Tariffs Promote Efficient Investment on Next Generation Networks?
  by Duarte Brito, Pedro Pereira and João Vareda
  

• WP nº 33 Sustaining Collusion in Growing Markets
  by Helder Vasconcelos
  

• WP nº 32 Duopoly Competition with Common Shareholders
  by Duarte Brito, Luís Cabral, Helder Vasconcelos
  

• WP nº 31 Unbundling and Incumbent Investment in Quality Upgrades and Cost Reduction
  by João Vareda
  

• WP nº 30 Access Regulation under Asymmetric Information about Demand
  By João Vareda
  

• WP nº 29 The race for telecoms infrastructure investment with bypass: Can access regulation achieve the first best?
  by João Vareda and Steffen Hoernig
  

• WP nº 28 Asymmetric Collusion and Merger Policy
  by Mattias Ganslandt, Lars Persson and Helder Vasconcelos
  

• WP nº 27 The Complementarity between Calls and Messages in Mobile Telephony
  by Lukasz Grzybowski and Pedro Pereira
  

• WP nº 26 The Consumer Loss of the Minimum Duration for Mobile Telephone Calls
  by Lukasz Grzybowski and Pedro Pereira
  

• WP nº 25 Product Differentiation when Competing with the Suppliers of Bottleneck Inputs
  by Duarte Brito and Pedro Pereira
  

• WP nº 24 Dynamic price competition with capacity constraints and strategic buyers
  by Gary Biglaiser and Nikolaos Vettas
  

• WP nº 23 The Impact of Cost-Reduction R&D Spillovers on the Ergodic Distribution of Market Structures
  by Cristopher A. Laincz and Ana Rodrigues
  

• WP nº 22 Dynamic Price Competition with Network Effects
  by Luís Cabral
  

• WP nº 21 The Welfare Impact of Competition in Fixed Telephony
  by Toker Doganoglu and Pedro Pereira
  

• WP nº 20 Bias and Size Effects of Price-Comparison Search Engines: Theory and Experimental Evidence
  by Aurora García-Gallego, Nikolaos Georgantzís, Pedro Pereira and José C. Pernías-Cerrillo
  

• WP nº 19 Are Sunk Cost a Barrier to Entry?
  by Luis Cabral and Thomas Ross
  

• WP nº 18 Quality Upgrades and the (loss) of Market Power in a Dynamic Monopoly Model
  by James J. Anton and Gary Biglaiser
  

• WP nº 17 The Impact on Broadband Access to the Internet of the Dual Ownership of Telephone and Cable Networks
  by Pedro Pereira and Tiago Ribeiro
  

• WP nº 16 Access to Bottleneck Inputs under Oligopoly: a Prisoners' Dilemma?
  by Duarte Brito and Pedro Pereira
  

• WP nº 15 Mobile Virtual Network Operators: Beyond the Hyperbolae
  by Duarte Brito and Pedro Pereira
  

• WP nº 14 Buyer power and pass-through of large retailing groups in the Portuguese food sector
  by Jorge Rodrigues
  

• WP nº 13 On the Diffusion of Electronic Commerce
  by Emin M. Dinlersoz and Pedro Pereira
  

• WP nº 12 Moonlighting: Public Service and Private Practice
  by Gary Biglaiser and Ching-to Albert Ma
  

• WP nº 11 Investment and Welfare Implications of the Ownership Structure of Overlapping Network
  by Duarte Brito and Pedro Pereira
  

• WP nº 10 Merger stability in a three firm game
  by Duarte Brito and João Gata
  

• WP nº 09 Ownership Structure of Cable Network and Competition in Local Access
  by Duarte Brito and Pedro Pereira
  

• WP nº 08 The Diffusion of Cellular Telephony in Portugal before UMTS: A Time Series Approach
  by Philippe Gagnepain and Pedro Pereira
  

• WP nº 07 Study on Competition Policy in the Portuguese Insurance Sector: Econometric Measurement of Unilateral Effects in the CAIXA/BCP-Merger Case
  by Christian Gollier and Marc Ivaldi
  

• WP nº 06 Does Microsoft Stifle Innovation? Dominant Firms, Imitation and R&D Incentives
  by Luis Cabral and Ben Polak
  

• WP nº 05 Entry, Costs Reduction, and Competition in the Portuguese Telephony Industry
  by Philippe Gagnepain and Pedro Pereira
  

• Wp nº 04 Do Lower Search Costs Reduce Prices and Price Dispersion?
  by Pedro Pereira
  

• WP nº 03 Multiplicity of Equilibria in Search Markets with Free Entry and Exit
  by Pedro Pereira
  

• WP nº 02 Some Implications of Search Costs for the Price Dynamics of Electronic Markets
  by Pedro Pereira
  

• WP nº 01 Should Alternative Mergers be Considered by Antitrust Authorities?
  by Duarte Brito
  

Annual reports

• Annual Report on Competition Policy submitted to OECD (July 2005-June 2006)
  
  

• Annual Report on Competition Policy in Portugal, 2004
  
  

• Annual Report on Competition Policy in Portugal, 2003