Continuous vs discrete-time bioeconomic models: Seasonal fisheries

Autor:	Kvamsdal, Sturla, Maroto Fernández, José María, Morán Cabré, Manuel, Sandal, Leif K.
Rok vydání:	2015
Předmět:	Biología marina Investigación operativa Peces Ecuaciones diferenciales Ecología Análisis numérico
Zdroj:	E-Prints Complutense: Archivo Institucional de la UCM Universidad Complutense de Madrid E-Prints Complutense. Archivo Institucional de la UCM instname
Popis:	We develop a discretization method of continuous-time bioeconomic models which consists of two steps: first we estimate a proper growth function for the continuous-time model through the ensemble Kalman Filter. Then we use the Runge-Kutta method 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 to the case of annually harvest. We find that seasonal harvesting is a win-win optimal solution with higher harvest, higher optimal steady state equilibrium, and higher economic value. We also demonstrate that the discretization method overcomes the economic and biological weakness and preserves the strengths of both continuous and discrete-time bioeconomic models
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::14d0652cceeb4e48ebbccaa926fb5ed8 https://eprints.ucm.es/id/eprint/34774/1/e-print-ucm-paper-bridge.pdf Zobrazit plný text záznamu