Consumers often purchase more than one differentiated product, assembling a portfolio, which might potentially affect substitution patterns of demand and, as a consequence, oligopolistic firms’ pricing strategies. To study such consumers’ portfolio considerations, this paper...

In this paper we present a continuous time model with reversible abatement capital in order to analyze the effects of environmental policies on the value of the firm and investment decisions. We show that the effects depend on what sort of future policy are implemented. We focus on investment...

This paper draws on institutional and evolutionary economics and contributes to an approach to environmental policy which diverges from mainstream prescriptions. The 'socio-technical system' is the core concept: this is a complex made of co-evolving institutions, technologies, markets and actors...

In this paper, we construct a political-economy model of international noncooperative environmental policymaking, and examine the strategic incentives for voters to elect an environmental policymaker in open economies. We show that under several circumstances, citizens have an incentive to...

The growing popularity of national efforts to promote eco-labeling raises important questions. In particular, developing countries fear that the eco-label can deliberately impose the environmental concern of (high income) importing countries on their production methods. Yet, empirical studies of...

Heterodox environmental economics is mainly based on non-mainstream economic theories; more precisely it refers to institutional and Schumpeterian economics. Starting from these theoretical foundations, heterodox environmental economics radically differs from the mainstream approach to...

This paper investigates firm incentives for developing environmentally clean technologies in a simple two-country model with international oligopoly, and compares them under price and quantity regulations with and without policy cooperation between governments. Under any policy regime, whether...

"The global environment is a matter of great importance to all nations.... Yet differences of opinions prevail about the main problems, and about the institutions to manage cooperation....The problem of finding carbon abatement policies is complicated by the scientific uncertainty about the...

Total factor productivity growth (TFPG) has been traditionally associated with technological change. We show that when a factor of production, such as energy, generates an environmental externality in the form of CO₂ emissions which is not internalized because of lack of environmental policy,...

We provide a new formulation of the Porter hypothesis that we feel is in the spirit of the hypothesis. Under this formulation we find that the Porter hypothesis need not hold universally, and identify conditions under which it may or may not hold. We first consider the case where the abatement...