气候政策与经济政策

Climate Policy and the Economy By D.Känzig and M.KonradtDiscussion by Felix Kübler (UZH,SFI) The Future of Macroeconomic Policy Norway 2023 It’s warming and it’s usGlobal average temperature changeTemperature change (°C)1.251.00.750.50.250.0-0.25-0.5-0.7518501875190019251950197520002025NASA GISSHadCRUTNOAAJapan Met.Berkeley EarthAnd it’s bad…What can we do?Carbon Pricing Bans and Rules R&D: Manhattan project?Economists love carbon taxes2 Carbon Theorems1.Climate Change is an externality and Pareto efficiency can be restored via carbon pricing 2.(Anderson and Duanmo (2023)): Given any emissions there are prices that support them.RemarksJust like the standard welfare theorems, these are benchmarks, nobody believes them. Are Pareto-improvements possible? How much do details matter?This paperLook at effects of two carbon pricing schemes in the EU ETS Carbon Taxes in various EU statesCarbon prices2 MethodsHigh Frequency Identification (Känzig (2021,23)) Control Based Identification (Metca