In a game between the governments of two countries, each chooses its o
wn environmental policy. The Nash equilibria of the game are generally
not Pareto optimal. On the one hand, each country may want to attract
industry, giving it an incentive to choose low environmental taxes or
standards. On the other hand, if disutility from pollution is suffici
ently high, each country might prefer that a firm locates only in othe
r countries. This effect tends to make the environmental policy under
non-cooperation stricter than it would be with cooperation.