The methodologies of economic valuation of environmental services are still poorly apply (use) in Mexico, in part because of the lack of information systematized on the matter of the reaches and limits of itself. The present carries out a dissertation on some of the methodologies on the matter,...

This paper examines how to harvest a biomass exposed to a potential collapse at an uncertain date. A specific recovery effect is identified which may be positive or negative. In general, the effect on the optimal biomass is indeterminate and depends upon the failure rate, the expected collapse,...

This study deals with fisheries and trade, focusing on developing countries. Fish is globally traded, and for many developing countries, it is an important net export good. In most of these countries, fisheries are often characterized by poorly defined property rights, accompanied by...

Canada's Pacific salmon fisheries are again in a crisis of declining stocks, excess fishing effort and poor returns. Changes in fisheries management which may help resolve some of these problems include licence buy-backs, individual transferable quotas, additional effort controls, single gear...

In this paper we analyze the optimal management of a joint ownership fishery exploitation model where agents use different fishing gears. As opposed to other works, we consider a model in which the fishing technology affects resource's growth not only through the harvest function, but also...

A two-agent model for the exploitation of the Arcto-Norwegian cod stock is developed to investigate the economic benefits that can be realized from resources , and the effect of exploitation on stock sustainability under cooperation and non-cooperation.

This paper deals with the sustainable management of a renewable resource based on individual and transferable quotas (ITQs). The aim of that paper is to determine the conditions under which a regulating agency can achieve both ecological and economic objectives when agents are heterogenous and...

This paper examines how to harvest a biomass confronted with the threat of partial extinction. We show that the uncertainty involved gives rise to two opposing effects determining an optimal steady-state stock of the biomass. A "discount effect", leading to a smaller stock as compared to the...

En el marco del diseño e implementación del subsistema de Áreas Marinas Protegidas (SAMP) en Colombia, se realiza una valoración económica (VE) comprehensiva que utiliza variados métodos e incluye diferentes agentes que van desde comunidades locales hasta compradores de créditos de...

Quotas or permits are frequently used in the management of renewable resources and emissions. However, in many industries there is concern about the basic eectiveness of quotas due to non-compliance. We develop an enforcement model of a quota-regulated resource and focus on a situation with...