The paper analyzes the exploitation of a local common where the behavior is steered by altruism rooted in social norms. The analysis is illustrated by using the Gordon-Schäfer model of a fishery. We start by reviewing the standard results when all exploiters are purely egoists; i.e., when own...

A biomass model of a wild salmon (Salmo salar) river recreationalfishery is formulated, and the ways in which economic and biological conditionsinfluence harvesting, stock size, profitability, and the benefit of the anglers arestudied. The demand for recreational angling is met by fishing...

We study optimal fishery management in an age-structured, bio-economic model where two age classes can be harvested independently. We show that the optimal amount of catch differs with age classes, and we derive conditions under which it is optimal to harvest only one age class. Our main policy...

This paper studies the relationship between population size and the rate of time preference (RTP) in pre-capitalist subsistence agricultural communities. The RTP is reflected in the community's propensity to invest in and maintain new arable land that may be considered as an inherent...