Management decisions aiming at developing fish stocks will not only affect the ecological sustainability of the fishery, but the economic and social dimensions as well. The Swedish Resource Rent Model for Commercial Fisheries (SRRMCF) is developed for analysing effects on the size and structure of the Swedish fishing fleet when introducing new management measures. It is an optimization model solved with linear programming. The baseline version contains 10 vessel segments, 180 métiers, 40 species of fish and crustaceans, and 6 different fishing areas.