Blar i Articles (FOR) på utgivelsesdato

Viser treff 61-80 av 100

    • Optimal control of systems with noisy memory and BSDEs with Malliavin derivatives 

      Øksendal, Bernt; Mohammed, Salah-Eldin; Røse, Elin Engen; Dahl, Kristina Rognlien (Journal article; Peer reviewed, 2016)
      In this article we consider a stochastic optimal control problem where the dynamics of the state process, X(t), is a controlled stochastic differential equation with jumps, delay and noisy memory. The term noisy memory ...

    • Stepwise investment and capacity sizing under uncertainty 

      Chronopoulos, Michail; Hagspiel, Verena; Fleten, Stein-Erik (Peer reviewed; Journal article, 2016)
      The relationship between uncertainty and managerial flexibility is particularly crucial in addressing capital projects. We consider a firm that can invest in a project in either a single (lumpy investment) or multiple ...

    • Simulating physical basis risks in the Capesize freight market 

      Ådland, Roar Os; Jia, Haiying (Peer reviewed; Journal article, 2017)
      The purpose of this paper is to evaluate the characteristics of the time-varying differential between the Baltic global trip-charter average and simulated earnings from a fleet of Capesize vessels. We interpret the standard ...

    • Predators in the market: implications of market interaction on optimal resource management 

      Steinshamn, Stein Ivar (Journal article; Peer reviewed, 2017)
      A two-species bioeconomic model is analyzed, but in contrast to most similar models, there is no biological interaction between the species, only economic. The interaction takes place in the market where the quantity of ...

    • Are AIS-based trade volume estimates reliable? The case of crude oil exports 

      Ådland, Roar Os; Jia, Haiying; Strandenes, Siri Pettersen (Peer reviewed; Journal article, 2017)
      Most global trade statistics in the public domain refer to official customs data, which are not generally available on a micro (individual cargo) level. With the increasing availability and completeness of ship positioning ...

    • Sulphur Abatement Globally in Maritime Shipping 

      Lindstad, Elizabeth; Rehn, Carl Fredrik; Eskeland, Gunnar (Journal article; Peer reviewed, 2017)
      In 2016, the International Maritime Organization (IMO) decided on global regulations to reduce sulphur emissions to air from maritime shipping starting 2020. The regulation implies that ships can continue to use residual ...

    • Multivariate modeling and analysis of regional ocean freight rates 

      Ådland, Roar Os; Benth, Fred Espen; Koekebakker, Steen (Peer reviewed; Journal article, 2017)
      In this paper, we propose a new multivariate model for the dynamics of regional ocean freight rates. We show that a cointegrated system of regional spot freight rates can be decomposed into a common non-stationary market ...

    • A bridge between continuous and discrete-time bioeconomic models: Seasonality in fisheries 

      Kvamsdal, Sturla F; Maroto, Jose M.; Moran, Manuel; Sandal, Leif Kristoffer (Journal article; Peer reviewed, 2017)
      We develop a discretization method to construct a discrete finite-time bioeconomic model, corresponding to bioeconomic models with continuous-time growth function, but allowing the analysis of seasonality in fisheries. The ...

    • Does fuel efficiency pay? Empirical evidence from the drybulk timecharter market revisited 

      Ådland, Roar Os; Alger, Harrison Marshall; Banyte, Justina; Jia, Haiying (Journal article; Peer reviewed, 2017)
      The time charter market for ships represents a classical example of the principal-agent problem, where shipowners can opt to invest in energy efficient ships, yet any savings in fuel expenditures accrue to the charterers. ...

    • A Malliavin-Skorohod calculus in L^0 and L^1 for additive and Volterra-type processes 

      Di Nunno, Giulia; Vives, Josep (Peer reviewed; Journal article, 2017)
      In this paper we develop a Malliavin–Skorohod type calculus for additive processes in the L1 and L1 settings, extending the probabilistic interpretation of the Malliavin–Skorohod operators to this context. We prove calculus ...

    • Planning for charters: A stochastic maritime fleet composition and deployment problem 

      Wang, Xin; Fagerholt, Kjetil; Wallace, Stein W. (Peer reviewed; Journal article, 2017)
      This paper introduces a chartering problem that arises in the shipping industry. The chartering decisions determine the time-charter contracts to enter into, in particular, how many ships of each type to charter in, and ...

    • A Maximum Principle for Mean-Field SDEs with Time Change 

      Di Nunno, Giulia; Haferkorn, Hannes Hagen (Journal article; Peer reviewed, 2017)
      Time change is a powerful technique for generating noises and providing flexible models. In the framework of time changed Brownian and Poisson random measures we study the existence and uniqueness of a solution to a ...

    • Stochastic energy market equilibrium modeling with multiple agents 

      Brekke, Kjell Arne; Golombek, Rolf; Kaut, Michal; Kittelsen, Sverre A.C.; Wallace, Stein W. (Journal article, 2017)

    • Risikopremier, realrenten og optimal konsum og porteføljeteori: Hva er problemet? 

      Aase, Knut Kristian (Journal article; Peer reviewed, 2017)
      Vi demonstrerer hvordan rekursive preferanser kan anvendes i økonomisk modellering, der kombinasjon av tid og usikkerhet er vesentlige elementer. Additiv og separerbar forventet nytteteori har vært den vanlige grunnpillaren ...

    • Optimal Insurance Policies in the Presence of Costs 

      Aase, Knut Kristian (Journal article; Peer reviewed, 2017)
      We reconsider costs in insurance, and suggest a new type of cost function, which we argue is a natural choice when there are relatively small, but frequent, claims. If a fixed cost is incurred each time a claim is made, ...

    • The impact of design uncertainty in engineer-to-order project planning 

      Vaagen, Hajnalka; Kaut, Michal; Wallace, Stein W. (Peer reviewed; Journal article, 2017)
      A major driver of planning complexity in engineer-to-order (ETO) projects is design uncertainty far into the engineering and production processes. This leads to uncertainty in technical information and will typically lead ...

    • Predators in the market: implications of market interaction on optimal resource management 

      Steinshamn, Stein Ivar (Journal article; Peer reviewed, 2017)
      A two-species bioeconomic model is analyzed, but in contrast to most similar models, there is no biological interaction between the species, only economic. The interaction takes place in the market where the quantity of ...

    • Verdien av å (kunne) stenge 

      Kristiansen, Karoline Ask; Nordahl, Helge; Tesaker, Marte (Journal article, 2017)
      Verdsetting av fysiske eiendeler ved hjelp av diskontering av fremtidige forventede kontantstrømmer tilhører barnelærdommen for siviløkonomer. Denne metoden har imidlertid en stor svakhet: Det forutsettes at eieren ikke ...

    • Incitements for transportation collaboration by cost allocation 

      Dahlberg, Joen; Engevall, Stefan; Göthe-Lundgren, Maud; Jørnsten, Kurt; Rönnqvist, Mikael (Journal article; Peer reviewed, 2018)
      In this paper, we focus on how cost allocation can be used as a means to create incentives for collaboration among companies, with the aim of reducing the total transportation cost. The collaboration is assumed to be ...

    • The economic impact of multiple sclerosis to the patients and their families in Norway 

      Svendsen, Bjørn; Grytten, Nina; Bø, Lars; Aarseth, Hallvard Gilje; Smedal, Tori; Myhr, Kjell-Morten (Journal article; Peer reviewed, 2018)
      Background Multiple sclerosis (MS) imposes high economic costs on society, but the patients and their families have to bear some of these costs. Objective We aimed to estimate the magnitude of these economic costs in ...