• An acquisition in the Nordic ferry market: rivalry or coordination on capacity? 

      Steen, Frode; Sørgard, Lars (Working paper, Working paper, 2000-12)
      The purpose of this article is to test the effect of Color Line’s acquisition of Larvik Line in September 1996. We formulate theoretical predictions for the changes in sales, capacity and capacity utilisation following an ...
    • Anatomy of cartel contracts 

      Hyytinen, Ari; Steen, Frode; Toivanen, Otto (Working paper;49/13, Working paper, 2013-12)
      We study cartel contracts using data on 18 contract clauses of 109 legal Finnish manufacturing cartels whose legal status is reminiscent of e.g. the U.S Sugar Institute. One third of the clauses relate to raising profits; ...
    • Cartels uncovered 

      Hyytinen, Ari; Steen, Frode; Toivanen, Otto (Working paper, Working paper, 2011-03)
      How many cartels are there? The answer is important in assessing the need for competition policy. We present a Hidden Markov Model that answers the question, taking into account that often we do not know whether a cartel ...
    • Collude, compete, or both? : deregulation in the Norwegian airline industry 

      Salvanes, Kjell Gunnar; Steen, Frode; Sørgard, Lars (Working paper, Working paper, 2000-12)
      The purpose of this paper is to test the nature of competition concerning price and capacity setting in the Norwegian airline industry after the deregulation in 1994. Did the two airlines, SAS and Braathens, compete on ...
    • The economics of social networks : the winner takes it all? 

      Fjell, Kenneth; Foros, Øystein; Steen, Frode (2010:42, Working paper, 2010-09)
      We look at the economics of social networks. Key economic features of these are positive network effects, giving rise to positive feedback effects that may lead to a winner-takes-it-all market. Social networks’ revenues ...
    • From a regulated duopoly to a private monopoly : the deregulation of the Norwegian airline industry 

      Steen, Frode; Sørgard, Lars (Working Paper, Working paper, 2002-07)
      We explain the economics of deregulation in the Norwegian market. We observed a transition from a regulated duopoly prior to 1994 to a monopolised airline market in 2001. We explain how eight years of deregulation and ...
    • Fusjoner og konkurranse : kostnads- og etterspørselsestimering i markedsmodeller 

      Steen, Frode (Arbeidsnotat, Working paper, 2000-01)
      I forbindelse med fusjons- og konkurransesaker kommer det ofte frem et behov for å kunne måle konkurranseeffektene av eventuelle bedriftssammenslåinger. Dette krever bruk av ulike markedsmodeller der økonomisk adferd ...
    • Individuelle priser i dagligvaremarkedet : et fangens dilemma for kjedene? 

      Foros, Øystein; Kind, Hans Jarle; Steen, Frode (Arbeidsnotat;2017:4, Working paper, 2017-06)
      Bedrifter har fått større mulighet til å samle informasjon om hver enkelt kunde. I dagligvaremarkedet samler kjedene informasjon om hvor og hva vi handler. NorgesGruppen og Coop har i mange år hatt rabattprogrammer hvor ...
    • On the workings of a cartel : evidence from the Norwegian cement industry 

      Röller, Lars-Hendrik; Steen, Frode (Working Paper, Working paper, 2005)
      Using the institutional set-up of the Norwegian cement industry, in particular its sharing rule, we are able to identify the workings of a cartel in some detail. Given data on prices, production, and exports, we are able ...
    • Private label entry as a competitive force? : an analysis of price responses in the Norwegian food sector 

      Gabrielsen, Tommy Staahl; Steen, Frode; Sørgard, Lars (Working Paper, Working paper, 2001-12)
      According to existing theory, the introduction of a private label has an ambiguous effect on the prices of competing national brands. We undertake an empirical analysis of the effects of private label entry on national ...
    • The SMS bandwagon in Norway : what made the market? 

      Andersson, Kjetil; Foros, Øystein; Steen, Frode (Working paper, Working paper, 2004-06)
      Short Message Service (SMS) has been an overwhelming success in Europe, substantially larger than in the United States. In relative terms Norway represents one of the largest SMS markets in the world. The aim of the paper ...
    • Text and voice : complements, substitutes or both? 

      Andersson, Kjetil; Foros, Øystein; Steen, Frode (Working paper, Working paper, 2005)
      Text messaging has become an important revenue component for European and Asian mobile operators. We develop a simple model of demand for mobile services incorporating the existence of call externalities and network effects. ...
    • The effects of a day off from retail price competition : evidence on consumer behavior and firm performance in gasoline retailing 

      Foros, Øystein; Nguyen, Mai Thi; Steen, Frode (Working paper;2017:11, Working paper, 2017-08)
      First, we analyze how regular days off from competition and a time-dependent price pattern affect firm performance. Second, we examine the effects on firms’ profitability from consumers’ changing search- and timing behavior. ...
    • Vertical control and price cycles in gasoline retailing 

      Foros, Øystein; Steen, Frode (Working paper, Working paper, 2011-02)
      We examine Norwegian gasoline pump prices using daily station-specific observations from 2003 to 2006. The big four gasoline companies use an industry-wide adopted vertical restraint (labeled price support) to move price ...