Viser treff 1-20 av 70

    • Optimal multi-dimensional stochastic harvesting with density-dependent prices 

      Alvarez, Luis H.; Lungu, Edward; Øksendal, Bernt (Journal article; Peer reviewed, 2016)
      We prove a verification theorem for a class of singular control problems which model optimal harvesting with density-dependent prices or optimal dividend policy with capitaldependent utilities. The result is applied to ...
    • A flying start? Maternity leave benefits and long-run outcomes of children 

      Carneiro, Pedro; Løken, Katrine Vellesen; Salvanes, Kjell Gunnar (Peer reviewed; Journal article, 2015)
      We study a change in maternity leave entitlements in Norway. Mothers giving birth before July 1, 1977, were eligible for 12 weeks of unpaid leave, while those giving birth after that date were entitled to 4 months of paid ...
    • Semantic and Pragmatic Value of Norwegian Greetings the Last Hundred Years 

      Rygg, Kristin (Journal article; Peer reviewed, 2017)
      this article addresses changes in norwegian greeting rituals during the last century seen from two viewpoints: First, an article in Maal og Minne (lundeby 1995) against the answers to a questionnaire on greetings ...
    • Zonal attachment of fish stocks and management cooperation 

      Hannesson, Røgnvaldur (Journal article; Peer reviewed, 2013)
      This paper studies the incentive-compatibility of distributing fish quotas on the basis of zonal attachment of stocks. Two countries sharing two fish stocks are studied, with the zonal attachment of both stocks varying ...
    • Market-specific Sunk Export Costs: The Impact of Learning and Spillovers 

      Maurseth, Per Botolf; Medin, Hege (Journal article; Peer reviewed, 2017)
      Firms may face sunk costs when entering an export market. Previous studies have focused on global or country-specific sunk export costs. This study analyses the importance of market-specific sunk export costs (defining ...
    • Optimal control of predictive mean-field equations and applications to finance 

      Øksendal, Bernt; Sulem, Agnès (Peer reviewed; Journal article, 2016)
      We study a coupled system of controlled stochastic differential equations (SDEs) driven by a Brownian motion and a compensated Poisson random measure, consisting of a forward SDE in the unknown process X(t) and a predictive ...
    • Tax-adjusted Discount Rates: a General Formula under Constant Leverage Ratios 

      Molnar, Peter; Nyborg, Kjell Gustav (Peer reviewed; Journal article, 2013)
      Cooper and Nyborg (2008) derive a tax-adjusted discount rate formula under a constant proportion leverage policy, investor taxes and risky debt. However, their analysis assumes zero recovery in default. We extend their ...
    • 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 ...
    • 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 ...
    • 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 ...
    • A Donsker delta functional approach to optimal insider control and applications to finance 

      Draouil, Olfa; Øksendal, Bernt (Journal article; Peer reviewed, 2015)
      We study optimal insider control problems, i.e. optimal control problems of stochastic systems where the controller at any time t, in addition to knowledge about the history of the system up to this time, also has ...
    • The impact of regional environmental regulations on empirical vessel speeds 

      Ådland, Roar Os; Fonnes, Gro; Jia, Haiying; Daae Lampe, Ove; Strandenes, Siri Pettersen (Journal article; Peer reviewed, 2017)
      Economic theory suggests that the use of more expensive low-sulphur fuel within an Emission Control Area (ECA) should result in lower vessel speeds. The objective of this paper is to investigate empirically, for the first ...
    • Market-specific Sunk Export Costs: The Impact of Learning and Spillovers 

      Maurseth, Per Botolf; Medin, Hege (Journal article; Peer reviewed, 2017)
      Firms may face sunk costs when entering an export market. Previous studies have focused on global or country-specific sunk export costs. This study analyses the importance of market-specific sunk export costs (defining ...
    • Approximate Bayesian inference for spatial econometrics models 

      Bivand, Roger; Gómez-Rubio, Virgilio; Rue, Håvard (Journal article; Peer reviewed, 2014)
      In this paper we explore the use of the Integrated Laplace Approximation (INLA) for Bayesian inference in some widely used models in Spatial Econometrics. Bayesian inference often relies on computationally intensive ...
    • 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 ...
    • Environmental regulations in shipping: Policies leaning towards globalization of scrubbers deserve scrutiny 

      Lindstad, Haakon Elizabeth; Eskeland, Gunnar (Peer reviewed; Journal article, 2016)
      ABSTRACT Emission regulations for Sulphur oxides (SOx) and nitrogen oxides (NOx) are motivated by health- and other environmental objectives in local and regional settings, while global warming concerns motivate policies ...
    • Stepwise Green Investment under Policy Uncertainty 

      Chronopoulos, Michail; Hagspiel, Verena; Fleten, Stein-Erik (Peer reviewed; Journal article, 2016)
      We analyse how market price and policy uncertainty, in the form of random provision or retraction of a subsidy, interact to affect the optimal time of Investment and the size of a renewable energy (RE) project that can be ...
    • 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 ...
    • 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)
    • 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, ...