Mansal F. auteur aut IRD Nguyen-Huu Tri auteur aut IRD Auger Pierre auteur aut IRD Balde M. auteur aut IRD text journalArticle eng text/pdf born digital access We present a mathematical bioeconomic model of a fishery with a variable price. The model describes the time evolution of the resource, the fishing effort and the price which is assumed to vary with respect to supply and demand. The supply is the instantaneous catch while the demand function is assumed to be a monotone decreasing function of price. We show that a generic market price equation (MPE) can be derived and has to be solved to calculate non trivial equilibria of the model. This MPE can have 1, 2 or 3 equilibria. We perform the analysis of local and global stability of equilibria. The MPE is extended to two cases: an age-structured fish population and a fishery with storage of the resource. specialized Dynamical systems Fishery Variable price Market price equation Demand function Equilibrium Stability Sustainable exploitation/overexploitation 040 020 62 3 305-323 2014 0001-5342 https://www.documentation.ird.fr/hor/fdi:010062478 10.1007/s10441-014-9227-7 0001-5342 [F B010062478] https://www.documentation.ird.fr/hor/fdi:010062478 https://www.documentation.ird.fr/intranet/publi/2014/09/010062478.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2014-10-02 2017-09-06 fdi:010062478 fre