SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

The aim of this paper is to present a search model in the field of environmental economics, where so-called clean and dirty producers enter the trading market, both looking for a partner with whom to exchange the goods they are endowed with. The model derived in this paper is rather simple. Nevertheless, it is able to produce a series of interesting results and useful insights, and is conveniently used here as a framework to explain the functioning of Joint Implementation programmes for polluting emissions’ reduction.

A Bug's Life: Competition Among Species Towards the Environment

Palavras-chave: Environmental economics; Search theory; Market failures; Environmental Economics and Policy; C61; O13; Q26.

Ano: 2009

URL: http://purl.umn.edu/54356

A model of different species competing for the same environment is presented, and possible explanations of peaceful coexistence or rather internecine conflicts are consequently derived. By means of a Lotka-Volterra dynamic system we describe the evolution of two populations (bees and locusts) that differently approach the management of those natural resources they contend for, and thus make a simple parable of todays societies playing the current environmental scenario.

Uniqueness and Indeterminacy of Equilibria in a Model with Polluting Emissions

Palavras-chave: Resource /Energy Economics and Policy.

Ano: 2007

URL: http://purl.umn.edu/10269

Is pollution a dirty word? To answer this question we develop an endogenous growth model à la Rebelo (1991) where dirtiness becomes a fundamental choice variable for the economy to grow. Conclusions to our analysis say that a positive sustainable economic growth is attainable only if polluting production activities are taken into account. Moreover, transitional dynamics points out that local stability and uniqueness of equilibria are also achieved.

Transitional Dynamics Towards Sustainability: Reconsidering the EKC Hypothesis

Palavras-chave: Environmental Economics and Policy.

Ano: 2006

URL: http://purl.umn.edu/12039

The Environmental Kuznets Curve (EKC) hypothesis is one of the most debated economic issues. Despite its fascinating appeal for any policy maker, neither theoretical nor certain empirical evidence has been found to clean up all doubt. The aim of this paper is to present an economy where environmental quality and polluting emissions do enter the maximisation problem, and provide a transitional dynamics analysis to pursue a new different version of the EKC, depending on the level of development finally achieved.