Ecosystem and Economy: An Integrated Dynamic General Equilibrium Approach

A dynamic general equilibrium model is developed for analyzing economy-ecosystem interactions. It includes stock-flow relations of natural resources, species populations and pollution, and it provides a microfoundation of the growth of populations. Humans and (other) species compete for natural resources and (prey) biomass. Resource stocks, pollution and populations determine public ecosystem services which in turn affect all agents in both the ecosystem and the economy. We establish a benchmark market system encompassing Lindahl markets for ecosystem services and emission markets. We also analyze a system where those two types of markets break down (laissez-faire) and propose efficiency restoring policies.

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