Policies and Instruments for Self-Enforcing Treaties

Alessia Russo, Bard Harstad and Francesco Lancia

No 15044, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: 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 technology is expensive. When technology is inexpensive, countries must instead limit or tax green investment in order to make future punishment credible. We also uncover a novel advantage of price regulation over quantity regulation, namely that when regulation is sufficiently flexible to permit firms to react to non-compliance in another country, the temptation to defect is reduced. The model is tractable and allows for multiple extensions.

Keywords: Climate change; Compliance; Environmental agreements; Green technology; Policy instruments; Repeated games; Self-enforcing treaties (search for similar items in EconPapers)
JEL-codes: D86 F53 H87 Q54 (search for similar items in EconPapers)
Date: 2020-07
New Economics Papers: this item is included in nep-ene, nep-env, nep-gth and nep-reg
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Related works:
Working Paper: Policies and Instruments for Self-Enforcing Treaties (2020)
Working Paper: Policies and Instruments for Self-Enforcing Treaties (2020)
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