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Time-Limited Subsidies: Optimal Taxation with Implications for Renewable Energy Subsidies

Author

Listed:
  • Owen Kay

  • Michael David Ricks

Abstract

Pigouvian subsidies are efficient, but output subsidies with uncertain or limited durations are not Pigouvian. We show that optimal “time-limited” policies must also subsidize investment to correct externalities generated after the output subsidy ends. Furthermore, an output subsidy’s optimal duration is characterized by the change in production when it ends. In the wind-energy industry, we find that power generation decreases by 5-10% after the end of facilities’ ten-year eligibility for the Renewable Energy Production Tax Credit. This behavioral response has implications for energy transitions and highlights how time limits could cause larger distortions in more elastic industries.

Suggested Citation

  • Owen Kay & Michael David Ricks, 2025. "Time-Limited Subsidies: Optimal Taxation with Implications for Renewable Energy Subsidies," Working Papers 2530, Federal Reserve Bank of Dallas.
    • Handle: RePEc:fip:feddwp:101407
    DOI: 10.24149/wp2530
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    References listed on IDEAS

    as
    1. Kopczuk, Wojciech, 2003. "A note on optimal taxation in the presence of externalities," Economics Letters, Elsevier, vol. 80(1), pages 81-86, July.
    2. Robert W. Hahn & Nathaniel Hendren & Robert D. Metcalfe & Ben Sprung-Keyser, 2024. "A Welfare Analysis of Policies Impacting Climate Change," NBER Working Papers 32728, National Bureau of Economic Research, Inc.
    3. Lohawala, Nafisa, 2023. "Roadblock or Accelerator? The Effect of Electric Vehicle Subsidy Elimination," RFF Working Paper Series 23-13, Resources for the Future.
    4. Kyle Handley & J. Frank Li, 2020. "Measuring the Effects of Firm Uncertainty on Economic Activity: New Evidence from One Million Documents," NBER Working Papers 27896, National Bureau of Economic Research, Inc.
    Full references (including those not matched with items on IDEAS)

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    Keywords

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    JEL classification:

    • H23 - Public Economics - - Taxation, Subsidies, and Revenue - - - Externalities; Redistributive Effects; Environmental Taxes and Subsidies
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
    • Q48 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Government Policy

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