RT Report
T1 A bridge between continuous and discrete-time bioeconomic models: Seasonality in fisheries
A1 Kvamsdal, Sturla
A1 Maroto Fernández, José María
A1 Morán Cabré, Manuel
A1 Sandal, Leif K.
AB Wedevelopadiscretizationmethodto construct adiscretefinite-time bioeconomicmodel, corresponding to bioeconomic models with continuous-time growth function, but allowing the analysis of seasonality in fisheries. The discretization method consists ofthree steps: first, we estimate a proper growth function for the continuous-time model with the Ensemble Kalman Filter. Second, we use the Runge-Kutta method to discretize the growth function. Third, we use the Bellman approach to analyze the optimal management of seasonal fisheries in a discrete-time setting. We analyze both the case of quarterly harvest and the case of monthly harvest, and we compare these cases with the case of annual harvest. We find that seasonal harvesting is a win–win optimal solution that provides higher harvest, higher optimal steady state equilibrium, and higher economic value than annual harvesting. We also demonstrate that the discretization method overcomes the errors and preserves the strengths of both continuous and discretetime bioeconomic models.
SN 1500-4066
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/27620
UL https://hdl.handle.net/20.500.14352/27620
LA eng
NO Publicado como artículo de revista:Kvamsdal, Sturla & Maroto, José M. & Morán, Manuel & Sandal, Leif K., 2017. "A bridge between continuous and discrete-time bioeconomic models: Seasonality in fisheries," Ecological Modelling, Elsevier, vol. 364(C), pages 124-131. https://doi.org/10.1016/j.ecolmodel.2017.09.020
NO Research Council of Norway
DS Docta Complutense
RD 7 may 2024