In commercial fisheries, stock collapse is an intrinsic problem caused by overexploitation or due to pure stochasticity. To analyze the risk of stock collapse, we apply a relatively simple Monte Carlo approach which can capture complex stock dynamics. We use an economic model with downward...

This study presents a multispecies stochastic model. The model suggests optimal fishing policy for two species in a three species predator prey ecosystem in the Barents Sea. We have employed stochastic dynamic programing to solve a three dimensional model, where catch is optimized by a...

Resumen Las áreas marinas protegidas son reconocidas en la actualidad como una alternativa de conservación de los ecosistemas marinos. Aunque la figura de protección reduce el área disponible para la actividad pesquera, se ha documentado que la misma puede convertirse en una fuente de...

In the context of decision making, the main challenge is the assessment of changes in natural capital stocks due to conversion of ecosystems for development purposes. Ecosystems are basically a spatial concept, so the natural approach is to use GIS to evaluate land cover changes. Basic economic...

In the context of decision making, the main challenge is the assessment of changes in natural capital stocks due to conversion of ecosystems for development purposes. Ecosystems are basically a spatial concept, so the natural approach is to use GIS to evaluate land cover changes. Basic economic...

Forest management aims at building ecological networks that minimize the impacts on timber production. We formalize the construction of ecological networks in forest environments as the optimal control dynamic graph-theoretic problem. The ecological network is based on a set of bioreserves and...

We consider an ecosystem management problem where managers can use habitat creation and predator removal to conserve an endangered species. Predator removal may become particularly important in the face of habitat loss, and ecosystem management strategies that ignore the influence of habitat are...

Abstract: In this article we analyze how the presence of thresholds influences multi agent decision making situations. We introduce a class of discounted autonomous optimal control problems with threshold effects and discuss tools to analyze these problems. Later, using these results we...

Following the advice of the 2014 evaluation of the Thünen Institute by the German Science and Humanities Council, the Thünen Institute has started to encourage its working groups to be evaluated by external experts as part of its quality management. The Marine Recreational Fisheries Working...

We develop and apply a new method for estimating the economic benefits of an environmental amenity. The method fits within the household production framework (Becker 1965), and is based upon the notion of estimating the derived demand for a privately traded option to utilize a freely-available...