Viser treff 1-10 av 58
Optimization in the ‘Pelagic complex’ : a multi-species competition model of North East Atlantic fisheries
(Working paper;2014:12, Working paper, 2015-03)
Optimal management of herring, mackerel and blue whiting in the North East Atlantic is analyzed. The main motivation is to quantify the potential gain from implementing multi-species management compared to traditional ...
A bioeconomic analysis of an age-structured fish stock continuous in time and age
(Working paper;2014:15, Working paper, 2015-03)
An age-structured bioeconomic model, that is completely continuous in state and time, is developed. To make the model more realistic, a nonlinear recruitment function is introduced and steady state solutions are studied ...
Fisheries management under irreversible investment : does stochasticity matter?
(Discussion paper;2011:20, Working paper, 2011-11)
We present a continuous, nonlinear, stochastic and dynamic model for capital investment in the exploitation of a renewable resource. Both the resource stock and capital stock are treated as state variables. The resource ...
Predators in the market : implications of market interaction on optimal resource management
(Working paper;2016:8, Working paper, 2016-11)
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 ...
Economic evaluation of alternative harvesting strategies for fish stocks
(Doctoral thesis, 1992)
Assessment of the economic benefits African countries received from their marine resources : three case studies
(Report2003:5Report87, Research report, 2003-03)
This paper examines the relationship between causality models and cointegration models in testing for price integration and the Law of One Price (LOP). In our review, we show that cointegration models, which allow for ...
Strukturfond, strukturavgift og verdsetting av fartøy
(Rapport2002:24, Research report, 2002-08)
Rapporten inngår som underlagsmateriale til Fiskeridepartementets arbeid med etableringen av et strukturfond for kapasitetstilpasning av fiskeflåten. Etter planen skal fondet etableres i begynnelsen av 2003, og virke over ...
Continuous harvesting costs in sole-owner fisheries with increasing marginal returns
(Discussion paper2009:6, Working paper, 2009-09)
We develop a bioeconomic model to analyze a sole-owner fishery with fixed costs as well as a continuous cost function for the generalized Cobb-Douglas production function with increasing marginal returns to effort level. ...
Estimation of biological and economic parameters of a bioeconomic fisheries model using dynamical data assimilation
(Discussion paper2000:5, Working paper, 2000-05)
A new approach of model parameter estimation is used with simulated measurements to recover both biological and economic input parameters of a natural resource model. The procedure efficiently combines time series of ...
On the dynamics of commercial fishing and parameter identification
(Discussion paper2000:8, Working paper, 2000-05)
This paper has two main objectives. The first is to develop dynamic models of commercial fisheries different from the existing models. The industry is assumed to have a well defined index of performance based on which it ...