We develop a two-country model in which each country contributes noncooperatively to the global environment by improving its local environment. We introduce an index of environmental awareness that measures the extent to which a country is aware of the global environment. Then we demonstrate...

How does aging affect the environment? We analyze this question using anoverlapping generations model featuring uncertain lifetimes andenvironmental externalities. We show that whether aging is harmful to theenvironment depends on the curvature of utility function, which ismeasured by the degree...