Modelos bioeconômicos dinâmicos de exploração de recursos naturais renováveis

Abstract

This article presents a brief overview of the theoretical and analytical aspects of a model for the exploitation of renewable natural resources and its environmental impacts. The article is based on original approaches and implicit interpretations of the dynamic logistic model proposed by Clark (1976) and developments by Pearce & Turner (1990) within the context of the inherent sustainability and equilibrium of economic activity levels, considering the need for natural resource allocation. It demonstrates that a balance exists between natural productivity and the extraction rate for any stock of renewable natural resources. However, the model's simplicity raises some doubts regarding its empirical applications, as it is argued that it would be ideal to test the predictions of these models against experimental and real-world production data. The analysis is essentially developed within a neoclassical economic context, according to which economic utilization means finding an optimal level of consumption, according to the preferences of the agents, using as main instruments the concepts of opportunity cost or discount rate, while also seeking to contextualize the goals of the long-term persistence of the production process.