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Climate Change Policy under Spatial Heat Transport and Polar Amplification

Author

Listed:
  • William Brock
  • Anastasios Xepapadeas

Abstract

This paper is, to our knowledge, the first paper in climate economics to consider the combination of spatial heat transport and polar amplification. We simplified the problem by stratifying the Earth into latitude belts and assuming, as in North et al. (1981), that the two hemispheres were symmetric. Our results suggest that it is possible to build climate economic models that include the very real climatic phenomena of heat transport and polar amplification, and still maintain analytical tractability. We demonstrate the importance of heat transfer and polar amplification in the welfare analysis of climate change, and in particular on the social price of the climate change externality. Furthermore, we show that the effect of heat transfer and polar amplification on climate policy depend upon the interaction of climate component dynamics with the distribution of welfare weights, population, and productive capacities across latitudes. We discuss optimal fossil fuel taxes in a competitive environment with income effects and show that optimal taxes have a spatial structure and are dependent on each latitude�s output. In addition, we characterize the interactions between spatial transport phenomena and the competitive equilibrium price path of tradable permits. Using general power utility functions, we show that an increase in the coefficient of relative risk aversion will reduce the social price of the climate externality.

Suggested Citation

  • William Brock & Anastasios Xepapadeas, 2016. "Climate Change Policy under Spatial Heat Transport and Polar Amplification," DEOS Working Papers 1604, Athens University of Economics and Business.
  • Handle: RePEc:aue:wpaper:1604
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    File URL: http://wpa.deos.aueb.gr/docs/Climate.Change.Policy.Spatial.Heat.Transport.and.Polar.Amplification.pdf
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    References listed on IDEAS

    as
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    3. Desmet, Klaus & Rossi-Hansberg, Esteban, 2015. "On the spatial economic impact of global warming," Journal of Urban Economics, Elsevier, vol. 88(C), pages 16-37.
    4. Brock, William & Engström, Gustav & Xepapadeas, Anastasios, 2014. "Spatial climate-economic models in the design of optimal climate policies across locations," European Economic Review, Elsevier, vol. 69(C), pages 78-103.
    5. Mendelsohn, Robert & Dinar, Ariel & Williams, Larry, 2006. "The distributional impact of climate change on rich and poor countries," Environment and Development Economics, Cambridge University Press, vol. 11(02), pages 159-178, April.
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    More about this item

    Keywords

    climate change; heat transport; polar amplification; welfare maximization; fossil fuels; optimal taxation; emissions permits;

    JEL classification:

    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming
    • Q58 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Government Policy
    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis

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