This article discusses the discount rate to be used in projects that aimed at improving the environment. The model has two different goods, one is the usual consumption good whose production may increase exponentially, the other is an environmental good whose quality remains limited. The...

This article discusses the discount rate to be used in projects that aimed at improving the environment. The model is quite stylized and involves two different goods, one is the usual consumption good whose production increases exponentially, the other is an environmental good whose quality...