というNBER論文をアセモグルらが書いている(ungated版)。原題は「Mirage on the Horizon: Geoengineering and Carbon Taxation Without Commitment」で、著者はDaron Acemoglu、Will Rafey(いずれもMIT)。 以下はその要旨。 We show that, in a model without commitment to future policies, geoengineering breakthroughs can have adverse environmental and welfare effects because they change the (equilibrium) carbon taxes. In our model, energy producers emit carb