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Numerical analysis of non-constant pure rate of time preference: A model of climate policy

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  • Fujii, Tomoki
  • Karp, Larry

Abstract

When current decisions affect welfare in the far-distant future, as with climate change, the use of a declining pure rate of time preference (PRTP) provides potentially important modeling flexibility. The difficulty of analyzing models with non-constant PRTP limits their application. We describe and provide software (available online) to implement an algorithm to numerically obtain a Markov perfect equilibrium for an optimal control problem with non-constant PRTP. We apply this software to a simplified version of the numerical climate change model used in the Stern Review. For our calibration, the policy recommendations are less sensitive to the PRTP than widely believed.

Suggested Citation

  • Fujii, Tomoki & Karp, Larry, 2008. "Numerical analysis of non-constant pure rate of time preference: A model of climate policy," Journal of Environmental Economics and Management, Elsevier, vol. 56(1), pages 83-101, July.
  • Handle: RePEc:eee:jeeman:v:56:y:2008:i:1:p:83-101
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    Cited by:

    1. Jesus Marin-Solano & Concepcio Patxot, 2009. "Discounting Arduousness," Working Papers in Economics 230, Universitat de Barcelona. Espai de Recerca en Economia.
    2. Garth Heutel, 2012. "How Should Environmental Policy Respond to Business Cycles? Optimal Policy under Persistent Productivity Shocks," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 15(2), pages 244-264, April.
    3. Iverson, Terrence, 2012. "Optimal Carbon Taxes with Non-Constant Time Preference," MPRA Paper 43264, University Library of Munich, Germany.
    4. Garth Heutel, 2012. "How Should Environmental Policy Respond to Business Cycles? Optimal Policy under Persistent Productivity Shocks," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 15(2), pages 244-264, April.
    5. Gersbach, Hans & Hummel, Noemi, 2016. "A development-compatible refunding scheme for a climate treaty," Resource and Energy Economics, Elsevier, vol. 44(C), pages 139-168.
    6. Winkler, Ralph, 2009. "Now or Never: Environmental Protection under Hyperbolic Discounting," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy (IfW), vol. 3, pages 1-22.
    7. Terrence Iverson & Scott Denning & Sammy Zahran, 2015. "When the long run matters," Climatic Change, Springer, vol. 129(1), pages 57-72, March.
    8. Lugovoy, O. & Polbin, A., 2016. "On Intergenerational Distribution of the Burden of Greenhouse Gas Emissions," Journal of the New Economic Association, New Economic Association, vol. 31(3), pages 12-39.
    9. Karp, Larry & Tsur, Yacov, 2011. "Time perspective and climate change policy," Journal of Environmental Economics and Management, Elsevier, vol. 62(1), pages 1-14, July.
    10. Iverson , Terrence & Karp, Larry, 2017. "Carbon taxes and climate commitment with non-constant time preference," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt3hw6s14v, Department of Agricultural & Resource Economics, UC Berkeley.
    11. Breton, Michèle & Keoula, Michel Yevenunye, 2014. "A great fish war model with asymmetric players," Ecological Economics, Elsevier, vol. 97(C), pages 209-223.
    12. Fujii, Tomoki, 2013. "Modeling myopia: Application to non-renewable resource extraction," Mathematical Social Sciences, Elsevier, vol. 66(2), pages 95-104.
    13. Da Rocha, José María & García-Cutrín, Javier & Gutiérrez Huerta, María José & Touza, Julia, 2015. "Reconciling yield stability with international fisheries agencies precautionary preferences: the role of non constant discount factors in age structured models," DFAEII Working Papers DFAEII;2015-02, University of the Basque Country - Department of Foundations of Economic Analysis II.
    14. Larry S. Karp, 2009. "Sacrifice, Discounting and Climate Policy: Five Questions," CESifo Working Paper Series 2761, CESifo Group Munich.
    15. Gersbach, Hans & Hummel, Noemi, 2011. "Climate Policy and Developing Countries," CEPR Discussion Papers 8685, C.E.P.R. Discussion Papers.

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