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Ikefuji, M., Laeven, R., Magnus, J. and Muris, C. (2019). Expected utility and catastrophic risk in a stochastic economy-climate model Journal of Econometrics, :.


  • Affiliated authors
    Roger Laeven, Jan Magnus
  • Publication year
    2019
  • Journal
    Journal of Econometrics

We analyze a stochastic dynamic finite-horizon economic model with climate change, in which the social planner faces uncertainty about future climate change and its economic damages. Our model (SDICE*) incorporates, possibly heavy-tailed, stochasticity in Nordhaus’ deterministic DICE model. We develop a regression-based numerical method for solving a general class of dynamic finite-horizon economy–climate models with potentially heavy-tailed uncertainty and general utility functions. We then apply this method to SDICE* and examine the effects of light- and heavy-tailed uncertainty. The results indicate that the effects can be substantial, depending on the nature and extent of the uncertainty and the social planner's preferences.