Blar i Articles (FOR) på forfatter "Ubøe, Jan"

Viser treff 1-9 av 9

    • A maximum entropy approach to the newsvendor problem with partial information 

      Andersson, Jonas; Jörnsten, Kurt; Nonås, Sigrid Lise; Sandal, Leif Kristoffer; Ubøe, Jan (Journal article; Peer reviewed, 2013)
      In this paper, we consider the newsvendor model under partial information, i.e., where the demand distribution D is partly unknown. We focus on the classical case where the retailer only knows the expectation and variance ...

    • 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 ...

    • 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 ...

    • Some aspects of random utility, extreme value theory and multinomial logit models 

      Andersson, Jonas; Ubøe, Jan (Journal article; Peer reviewed, 2012)
      In this paper we give a survey on some basic ideas related to random utility, extreme value theory and multinomial logit models. These ideas are well known within the eld of spatial economics, but do not appear to be ...

    • Stackelberg equilibria in continuous newsvendor models with uncertain demand and delayed information 

      Øksendal, Bernt; Sandal, Leif Kristoffer; Ubøe, Jan (Journal article; Peer reviewed, 2014)
      We consider explicit formulae for equilibrium prices in a continuous-time vertical contracting model. A manufacturer sells goods to a retailer, and the objective of both parties is to maximize expected profits. Demand ...

    • Stochastic Stackelberg equilibria with applications to time-dependent newsvendor models 

      Øksendal, Bernt; Sandal, Leif Kristoffer; Ubøe, Jan (Journal article; Peer reviewed, 2013)
      In this paper, we prove a maximum principle for general stochastic differential Stackelberg games, and apply the theory to continuous time newsvendor problems. In the newsvendor problem, a manufacturer sells goods to a ...

    • 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 ...

    • Transfer of risk in the newsvendor model with discrete demand 

      Jörnsten, Kurt; Nonås, Sigrid Lise; Sandal, Leif Kristoffer; Ubøe, Jan (Journal article; Peer reviewed, 2012)
      In this paper we consider the transfer of risk in a newsvendor model with discrete demand. We view the newsvendor model as a leader/follower problem where the manufacturer (leader) decides the wholesale price and the ...

    • 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 ...