We analyze a repeated game in which countries are polluting as well as investing in technologies. While folk theorems point out that the first best can be sustained as a subgame-perfect equilibrium when the players are sufficiently patient, we derive the second best equilibrium when they are...

I develop a dynamic model of private provision of public bads allowing investments in technologies. The analysis is tractable and the MPE unique. The framework is used to derive optimal incomplete contracts in a dynamic setting. While the noncooperative equilibrium is very inefficient,...

We characterize the optimal policy and policy instruments for self-enforcing treaties when countries invest in green technology before they pollute. If the discount factor is too small to support the first best, then both emissions and investments will be larger than in the first best, when...

A conservation good (such as a tropical forest) is owned by a seller who is tempted to consume (or cut), but a buyer benefits more from conservation. The seller does conserve if the buyer is expected to buy, but the buyer is unwilling to pay as long as the seller conserves. This contradiction...

We characterize the optimal policy and policy instruments for self-enforcing treaties whencountries invest in green technology before they pollute. If the discount factor is too small tosupport the first best, then both emissions and investments will be larger than in the first best,when...