• Testing for Granger causality in the presence of measurement errors 

      Andersson, Jonas (Journal article; Peer reviewed, 2005)
      In this paper a potential problem with tests for Granger−causality is investigated. If one of the two variables under study, but not the other, is measured with error the consequence is that tests of forecastablity of ...
    • Searching for the DGP when forecasting : is it always meaningful for small samples? 

      Andersson, Jonas (Journal article; Peer reviewed, 2006)
      In this paper the problem of choosing a univariate forecasting model for small samples is investigated. It is shown that, a model with few parameters, frequently, is better than a model which coincides with the data ...
    • A Maximum Principle Approach to Risk Indifference Pricing with Partial Information 

      An, Ta Thi Kieu; Øksendal, Bernt; Proske, Frank (Peer reviewed, 2008)
      We consider the problem of risk indifference pricing on an incomplete market, namely on a jump diffusion market where the controller has limited access to market information. We use the maximum principle for stochastic ...
    • Modeling Freight Markets for Coal 

      Ubøe, Jan; Andersson, Jonas; Jörnsten, Kurt; Strandenes, Siri Pettersen (Journal article; Peer reviewed, 2009)
      In this paper we study bulk shipping of coal between the central regions in the world. We compare the performance of cost-minimizing models with a gravity model approach. The main finding in the paper is that cost minimizing ...
    • Strategic Pricing of Commodities 

      Jörnsten, Kurt; Ubøe, Jan (Journal article; Peer reviewed, 2009)
      We consider a setting where a large number of agents are trading commodity bundles. Assuming that agents of the same type have a certain utility attached to each transaction, we construct a statistical equilibrium which ...
    • Optimal control with partial information for stochastic Volterra equations 

      Øksendal, Bernt; Zhang, Tusheng (Journal article; Peer reviewed, 2010)
      In the first part of the paper we obtain existence and characterizations of an optimal control for a linear quadratic control problem of linear stochastic Volterra equations. In the second part, using the Malliavin calculus ...
    • Evaluation of the Norwegian R&D tax credit scheme 

      Møen, Jarle; Cappelen, Ådne; Fjærli, Erik; Foyn, Frank; Hægeland, Torbjørn; Raknerud, Arvid; Rybalka, Marina (Journal article; Peer reviewed, 2010)
      We find that the Norwegian R&D tax credit scheme introduced in 2002 mainly works as intended. The scheme is costeffective and it is used by a large number of firms. It stimulates these firms to invest more in R&D, and, ...
    • Optimal control with partial information for stochastic Volterra equations 

      Øksendal, Bernt; Zhang, Tusheng (Journal article; Peer reviewed, 2010)
      In the first part of the paper we obtain existence and characterizations of an optimal control for a linear quadratic control problem of linear stochastic Volterra equations. In the second part, using the Malliavin ...
    • The Perpetual American Put Option for Jump-Diffusions 

      Aase, Knut K. (Journal article; Peer reviewed, 2010)
      We solve a specific optimal stopping problem with an infinite time horizon, when the state variable follows a jump-diffusion. The novelty of the paper is related to the inclusion of a jump component in this stochastic ...
    • Treating missing values in INAR(1) models: An application to syndromic surveillance data 

      Andersson, Jonas; Karlis, Dimitris (Journal article; Peer reviewed, 2010)
      Time-series models for count data have found increased interest in recent years. The existing literature refers to the case of data that have been fully observed. In this article, methods for estimating the parameters of ...
    • Existence And Uniqueness Of Equilibrium In a Reinsurance Syndicate 

      Aase, Knut K. (Journal article; Peer reviewed, 2010)
      In this paper we consider a reinsurance syndicate, assuming that Pareto optimal allocations exist. Under a continuity assumption on preferences, we show that a competitive equilibrium exists and is unique. Our conditions ...
    • Valuation and Risk Management in the Norwegian Electricity Market 

      Bjerksund, Petter; Rasmussen, Heine; Stensland, Gunnar (Journal article; Peer reviewed, 2010)
      The purpose of this paper is twofold: Firstly, we analyse the option value approximation of traded options in the presence of a volatility term structure. The options are identified as: (a) “European” (written on the forward ...
    • The cost of multiple sclerosis in Norway 

      Svendsen, Bjørn; Myhr, Kjell-Morten; Nyland, Harald Inge; Aarseth, Jan Harald (Journal article; Peer reviewed, 2010)
      Health economic aspects have been increasingly important during introduction of new treatments for multiple sclerosis. As a partial response for Norway, a costof- illness study was carried out to estimate the yearly ...
    • Lederutviklingsprogram som virkemiddel for utvikling av kunnskapsdeling i norske multinasjonale selskaper 

      Jordahl, Atle; Kjøde, Arne (Journal article; Peer reviewed, 2010)
      Norske bedrifters oppkjøp av virksomheter utenfor Norge er i økende grad kunnskapsdrevet. Dette betyr at en ønsker å øke bedriftens verdiskaping gjennom å ta i bruk kunnskap fra eller overføre kunnskap til de oppkjøpte ...
    • Uncovering preferences from patient list data using benefit efficient models 

      Ubøe, Jan; Lillestøl, Jostein (Journal article; Peer reviewed, 2010)
      In this paper it is shown how the benefit efficient patient list model of Ubøe and Lillestøl [1] can be used to infer strength of preferences from patient list data. It is proved that the model allows the construction of ...
    • Holomorphic convexity and Carleman approximation by entire functions on Stein manifolds 

      Manne, Per Erik; Wold, Erlend Fornæss; Øvrelid, Nils (Journal article; Peer reviewed, 2011)
      We give necessary and sufficient conditions for totally real sets in Stein manifolds to admit Carleman approximation of class Ck , k ≥ 1, by entire functions.
    • Hvorfor samarbeide? 

      Audy, Jean-Francois; Lehoux, Nadia; D'Amours, Sophie; Rönnqvist, Mikael (Journal article; Peer reviewed, 2011)
      Mange bedrifter ser på samarbeid som en mulighet til å styrke sin egen konkurransekraft, få tilgang til nye markeder og innfri operasjonelle, samfunnsmessige og miljørelaterte krav og restriksjoner. Samtidig har hver enkelt ...
    • Belønninger som styringsverktøy - når bør toppledelsen holde fingrene av fatet? 

      Bragelien, Iver (Journal article; Peer reviewed, 2011)
      Utviklingen i virksomhetsstyring de siste 20-30 årene har vært preget av mer systematisk bruk av ikke-finansiell informasjon og større utbredelse av variabel avlønning. I denne artikkelen ser vi disse to trendene i sammenheng ...
    • Patient allocations in general practice in case of patients' preferences for gender of doctor and their unavailability 

      Lillestøl, Jostein; Ubøe, Jan; Rønsen, Yngve; Hjortdahl, Per (Journal article; Peer reviewed, 2011)
      Background: In some countries every citizen has the right to obtain a designated general practitioner. However, each individual may have preferences that cannot be fulfilled due to shortages of some kind. The questions ...
    • Europe's climate goals and the electricity sector 

      Eskeland, Gunnar; Rive, Nathan Appleton; Mideksa, Torben Kenea (Journal article; Peer reviewed, 2012)
      EU's objective of attaining 20% reductions in greenhouse gas emissions by 2020 is analysed with a general equilibrium model detailing electricity generation technologies and capital vintaging. Consistent with theory and ...