Macroeconomic policies, second-best theory and the environment

Abstract
This paper seeks to develop a basic analytical framework that can be used to trace the environmental impacts of macroeconomic policies, and especially to identify where unforeseen negative environmental effects may occur and design remedial measures. The framework is based on a formal mathematical model which shows the second-best nature of macroeconomic policies in the presence of environmental externalities. The model confirms the empirically observed and intuitively appealing conclusion that it is the combination of macroeconomic policies and subsidiary imperfections (policy, market or institutional), rather than macroeconomic policies alone, that leads to environmental degradation. Several illustrative examples are presented from case studies in selected developing countries.

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