• Changes in herring consumption in Russia 

      Lien, Kristin; Tveterås, Ragnar; Tveterås, Sigbjørn (Working paper, Working paper, 2007-12)
      In the seafood category Russian consumers are adopting new species and new product forms at a rapid rate. We employ a panel data set on monthly per capita demand for different herring products in six Russian regions to ...
    • Confidence intervals for the shrinkage estimator 

      Nilsen, Odd Bjarte; Asche, Frank; Tveterås, Ragnar (Working paper, Working paper, 2005-08)
      Shrinkage estimators have recently become popular in estimation of heterogeneous models on panel data. In this chapter we show that the estimated covariance matrix in the posterior distribution of the shrinkage estimator ...
    • Critical factors in transnational oil companies localisation decisions : clusters and portfolio optimisation 

      Kind, Hans Jarle; Osmundsen, Petter; Tveterås, Ragnar (Working Paper, Working paper, 2001-10)
      Enhanced understanding of the factors determining transnational companies’ localisation decisions is important for regulators and other stakeholders concerned about maintaining current activity levels in a petroleum producing ...
    • Disposal of petroleum installations : major policy issues 

      Osmundsen, Petter; Tveterås, Ragnar (Discussion paper, Working paper, 2000-01)
      Following the Brent Spar controversy, the OSPAR countries reached a unanimous agreement in 1998 for the future rules for disposal of petroleum installations. The vast majority of existing offshore installations will be ...
    • Effects of regional agglomeration of salmon : aquaculture on production costs 

      Tveterås, Ragnar (Report, Research report, 2001-09)
      During the last decade empirical evidence of regional agglomeration economies has emerged for some industries. This report argues that externalities from agglomeration are not only present in some manufacturing and service ...
    • En analyse av havbruksnæringen i Rogaland fra et næringsklynge-perspektiv 

      Tveterås, Ragnar (Rapport, Research report, 2002-10)
      Denne rapporten analyserer havbruksnæringen i Rogaland ut fra et næringsklynge-perspektiv. Næringens vekstmuligheter i regionen begrenses av betydelig konkurranse om kystsonen mellom ulike brukerinteresser. Dette representerer ...
    • En prinsipiell drøfting av effekter for norsk sjømateksport av reduserte handelsbarrierer 

      Steinshamn, Stein Ivar; Asche, Frank; Tveterås, Ragnar (Rapport, Research report, 2001-06)
      Norge antas å ha klare offensive interesser relatert til handel med fisk både generelt, og spesielt i forhold til WTO. I denne rapporten ser vi først på en del prinsipielle sider ved handel med vekt på begreper som komparative ...
    • European market integration for gas? : volume flexibility and political risk 

      Asche, Frank; Osmundsen, Petter; Tveterås, Ragnar (Discussion paper, Working paper, 2000-05)
      Is the European gas market integrated? Are there substantial price differences between gas from different export countries? Time series of Norwegian, Dutch and Russian gas export prices to Germany in 1990-1998 are examined. ...
    • European market integration for gas? : volume flexibility and political risk 

      Asche, Frank; Osmundsen, Petter; Tveterås, Ragnar (Report, Research report, 2000-06)
      Is the European gas market integrated? Are there substantial price differences between gas from different export countries? Time series of Norwegian, Dutch and Russian gas export prices to Germany in 1990-1998 are examined. ...
    • Firm exit, vintage effect and the business cycle in Norway 

      Salvanes, Kjell Gunnar; Tveterås, Ragnar (Discussion paper, Working paper, 1998-12)
      In spite of the large and growing literature on producer heterogeneity and firm exit behavior, little attention has been paid to the vintage capital theory of firm exits as an alternative hypothesis to learning/selection. ...
    • The influence of regional agglomeration externalities on efficiency in Norwegian salmon aquaculture 

      Tveterås, Ragnar; Battese, George E. (Report, Research report, 2001-04)
      This report analyses the factors explaining productivity and efficiency differences across salmon aquaculture farms, with an emphasis on agglomeration externalities. We specify a stochastic frontier production model with ...
    • Konkurranseevne i norsk sjømatindustri : klynger og verdikjeder 

      Tveterås, Ragnar; Asche, Frank; Sissener, Elin Helene (Rapport, Research report, 2002-10)
      I denne analysen av konkurranseevnen til norsk sjømatindustri påpekes det at havbruk og fiske har naturlige konkurransefortrinn på grunn av tilgang på knappe og ikke-reproduserbare faktorer som fiskeråstoff og produktive ...
    • Market integration for natural gas in Europe 

      Asche, Frank; Osmundsen, Petter; Tveterås, Ragnar (Discussion paper, Working paper, 2000-09)
      In this paper we examine the degree of market integration in French gas imports. Are there substantial price differences between gas from different export countries, and do prices move together? Furthermore, we analyze to ...
    • Market integration for natural gas in Europe 

      Asche, Frank; Osmundsen, Petter; Tveterås, Ragnar (Report, Research report, 2000-09)
      In this paper we examine the degree of market integration in French gas imports. Are there substantial price differences between gas from different export countries, and do prices move together? Furthermore, we analyze to ...
    • Modeling demand for fishmeal using a heterogeneous estimator for panel data 

      Tveterås, Ragnar; Tveterås, Sigbjørn; Sissener, Elin Helene (Working Paper, Working paper; Working paper, 2003-12)
      Increased livestock and aquaculture production can put pressure on the fishmeal market, and thus industrial fisheries stocks, since both of these sectors use fishmeal in their feeds. Data indicate that fishmeal supply has ...
    • Modelling fishermen behaviour under new management regimes: final report 

      Asche, Frank; Bjørndal, Trond; Eggert, Håkan; Frost, Hans; Gordon, Daniel V.; Gudmundsson, Eyjolfur; Hoff, Ayoe; Jensen, Carsten Lynge; Pascoe, Sean; Sissener, Elin Helene; Tveterås, Ragnar (Report, Research report, 2005-11)
      A traditional fisheries management scheme generates incentives to maximize a vessels share of the catch and encourages a ‘race to fish’. Individual vessel quota management schemes change the incentives to eliminate the ...
    • Natural gas demand in the European household sector 

      Nilsen, Odd Bjarte; Asche, Frank; Tveterås, Ragnar (Working paper, Working paper, 2005-08)
      This paper analyzes the residential natural gas demand per capita in 12 European countries using a dynamic loglinear demand model, which allows for country-specific elasticity estimates in the short and long run. The ...
    • Organisering av verdikjeder for oppdrettsfisk 

      Tveterås, Ragnar (Rapport, Research report, 2004-01)
      Verdikjeder for oppdrettsfisk står overfor betydelige organisatoriske utfordringer som følge av økte kundekrav, spesielt drevet fram av dagligvarekjedenes økte markedsandel, og teknologiske endringer i bearbeiding av fisk. ...
    • Productivity development in Icelandic : Norwegian and Swedish fisheries 

      Eggert, Håkan; Tveterås, Ragnar (Working paper, Working paper, 2007-12)
      Several factors contribute to the productivity of nations’ fisheries: Abundance of fish stocks, government regulation of fisheries, and innovations in fishing technologies. We analyze the total factor productivity (TFP) ...