• Irreversible Investments Revisited 

      Sandal, Leif Kristoffer; Steinshamn, Stein Ivar (Discussion paper, Working paper, 2006-07)
      A non-linear dynamic model in two state variables, two controls and three cost terms is presented for the purpose of finding the optimal combination of exploitation and capital investment in optimal renewable resource ...
    • Optimal population and capital dynamics in fisheries with irreversible investments 

      Sandal, Leif Kristoffer; Steinshamn, Stein Ivar; Hoff, Ayoe (Working paper, Working paper, 2007-06)
      A multi-dimensional, non-linear dynamic model in continuous time is presented for the purpose of finding the optimal combination of exploitation and capital investment in optimal renewable resource management. Non-malleability ...
    • 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 ...
    • The premium of marine protected areas : a simple valuation model 

      Kvamsdal, Sturla Furunes; Sandal, Leif Kristoffer (Discussion paper, Working paper, 2007-03)
      Marine Protected Areas are considered as a hedging tool against some of the uncertainties that trouble many fisheries today. Such tools are always connected with a cost; a premium. An optimal harvest rule is combined ...