• A note on upward pricing pressure : the possibility of false positives 

      Mathiesen, Lars; Nilsen, Øivind Anti; Sørgard, Lars (Discussion paper;11/2012, Working paper, 2012-05)
      Farrell and Shapiro proposed a simple test of the possible upward pricing pressure (UPP) following a merger. They showed that the test may give false negatives, that is, indicate that a merger may not give an UPP, while ...
    • A note on upward pricing pressure: the possibility of false positives 

      Mathiesen, Lars; Nilsen, Øivind Anti; Sørgard, Lars (Journal article; Peer reviewed, 2012)
      Joseph Farrell and Carl Shapiro proposed a simple test of the possible upward pricing pressure (UPP) following a merger. They showed that the test may give false negatives—that is, indicate that a merger may not give an ...
    • Climate policy and the steel industry : achieving global emission reductions by an incomplete climate agreement 

      Mathiesen, Lars; Mæstad, Ottar (Discussion paper, Working paper, 2002-10)
      The steel industry is one of the largest sources of global CO2 emissions and hence a candidate for climate policies. A carbon tax on emissions in industrialized countries, however, will cause relocation of steel production ...
    • Climate Policy and the steel industry: achieving global emission reductions by an incomplete climate agreement 

      Mathiesen, Lars; Mæstad, Ottar (Journal article; Peer reviewed, 2004)
      The steel industry is one of the largest sources of global CO 2 emissions and hence a candidate for climate policies. A carbon tax on emissions in industrialized countries, however, will cause relocation of steel production ...
    • Climate policy and the steel industry : achieving global emission reductions by an incomplete climate agreement 

      Mathiesen, Lars; Mæstad, Ottar (Working Paper, Working paper, 2002-11)
      The steel industry is one of the largest sources of global CO2 emissions and hence a candidate for climate policies. A carbon tax on emissions in industrialized countries, however, will cause relocation of steel production ...
    • Electricity production in a hydro system with a reservoir constraint 

      Mathiesen, Lars; Skaar, Jostein; Sørgard, Lars (2011:03, Working paper, 2011-02)
      The purpose of this article is to analyze how market power may affect the allocation of production between seasons (summer and winter) in a hydro power system with reservoir constraints and inflow uncertainty. We find that ...
    • En analyse av konsekvenser for kraftpriser av oppkjøp i norsk kraftforsyning 

      Mathiesen, Lars (Arbeidsnotat, Working paper, 2002-09)
      von der Fehr og Johnsen diskuterer mulighetene for utøvelse av markedsmakt i det nordiske kraftmarked. De illustrerer den kvantitative betydning av slike muligheter med en beregning som viser 23% økt inntekt for en leder. ...
    • International climate policy : consequences for shipping 

      Mæstad, Ottar; Evensen, Annika Jaersen; Mathiesen, Lars; Olsen, Kristian (Report, Research report, 2000-12)
      This report summarises the main results from the project Norwegian and international climate policy consequences for shipping. The aim of the project has been to shed light on how climate policies might affect shipping, ...
    • Merger simulations with observed diversion ratios 

      Mathiesen, Lars; Nilsen, Øivind Anti; Sørgard, Lars (Discussion paper, Working paper, 2010-10)
      A common approach to merger simulations used in antitrust cases is to calibrate demand from market shares and a few additional parameters. When the products involved in the merger case are differentiated along several ...
    • Merger simulations with observed diversion ratios 

      Mathiesen, Lars; Nilsen, Øivind Anti; Sørgard, Lars (Journal article; Peer reviewed, 2011)
      One approach to merger simulations used in antitrust cases is to calibrate demand from market shares and a few additional parameters. When the products involved in the merger case are differentiated along several dimensions, ...
    • Merger simulations with observed diversion ratios 

      Mathiesen, Lars; Nilsen, Øivind Anti; Sørgard, Lars (2010:46, Working paper, 2010-09)
      A common approach to merger simulations used in antitrust cases is to calibrate demand from market shares and a few additional parameters. When the products involved in the merger case are differentiated along several ...
    • Numerisk modellering av markeder for differensierte produkter 

      Mathiesen, Lars (Rapport, Research report, 2001-06)
      Amerikanske konkurransemyndigheter beskriver i antitrust analyser etterspørsel vha Logit-funksjonen. En viktig egenskap er at en modell kan etableres med et minimum av konkrete opplysninger. Funksjonen egner seg derfor ...
    • Numerisk modellering av markeder med differensierte produkter 

      Mathiesen, Lars (Rapport, Research report, 2000-03)
      Når Konkurransetilsynet vurderer å gripe inn mot virksomhet, avtaler og samarbeid som kan være skadelig for konkurransen har man et definisjons- og målproblem: Man må sammenlikne med en hypotetisk situasjon, som vil oppstå ...
    • Om fusjonssimulering 

      Mathiesen, Lars (Journal article; Peer reviewed, 2013)
      Artikkelen beskriver sentrale elementer i en fusjonssimulering (FS) og illustrerer disse ved hjelp av analyser fra tre reelle saker. FS er en matematisk metode for å beregne markedseffekter av bedriftssamarbeid. FS ...
    • On modelling the market for natural gas 

      Mathiesen, Lars (Working Paper, Working paper, 2001-12)
      Several features may separately or in combination influence conduct and performance of an industry, e.g. the numbers of sellers or buyers, the degree of economies of scale in production and distribution, the temporal and ...
    • On the significance of pre-existing distortions for the costs of environmental regulation 

      Mathiesen, Lars; Håkonsen, Lars (Discussion paper, Working paper, 2001-05)
      Recently, several papers have shown that environmental taxes are more costly in an economy with preexisting distortions than in an undistorted economy. This result applies for equal percent reductions from different ...
    • Price patterns resulting from different producer behavior in spatial equilibrium 

      Mathiesen, Lars (Discussion paper;5/2012, Working paper, 2012-03)
      We are concerned with economic analyses of markets from the perspective of supporting a decision maker selling in the market. The competitive pressure and the price formation are central issues. The goal of this paper ...
    • Regulation of pollution in a Cournot equilibrium 

      Mathiesen, Lars (Discussion paper, Working paper, 2008-06)
      In the traditional Cournot model producers influence each other’s decisions through revenue earned in the product market. Rosen (1965) introduced the notion of a coupled constraints equilibrium which allowed players to ...
    • Simulating the effects of an acquisition in the ferry market 

      Mathiesen, Lars; Sørgard, Lars (Report, Research report, 2000-09)
      Numerical models have been applied in several merger studies during the last decade. The purpose of this paper is to discuss some modelling issues that have not been addressed in detail in the existing literature on merger ...
    • A steel industry model : a simulator for analyzing effects on demand for ocean shipping from regulating the carbon emissions of steel production 

      Mathiesen, Lars (Report, Research report, 2000-12)
      An international regulation of carbon dioxide emissions could affect the shipping industry directly in terms of increased fuel cost, which when passed on to customers as higher freight rates presumably would reduce demand ...