Transboundary Pollution in a Dynamic Game Model

We consider a dynamic game model in which N countries produce a single product that is not traded. Production results in emissions that accumulate a stock of pollution in each country. Households in each country derive utility from consuming the product but face costs depending on the level of the country-specific stock of pollution as well as the pollution stocks of the other countries. We distinguish three different cost scenarios. For all three, we show the existence of a Markov perfect equilibrium (MPE) and derive the collusive outcome. The MPEs are associated with the case where countries fail to coordinate their policies, while the collusive solutions correspond to the coordinated policy.
JEL Classification No.: C73.