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Energy Efficiency Policy with Price-quality Discrimination

Author

Listed:
  • Marie-Laure Nauleau

    (CIRED)

  • Louis-Gaëtan Giraudet

    (CIRED, Ecole des Ponts ParisTech)

  • Philippe Quirion

    (CIRED, CNRS)

Abstract

We compare a range of energy efficiency policies in a durable good market subject to both energy-use externalities and price-quality discrimination by a monopolist. We find that the social optimum can be achieved with differentiated subsidies. With ad valorem subsidies, the subsidization of the high-end good leads the monopolist to cut the quality of the low-end good. The rates should always be decreasing in energy efficiency. With per-quality subsidies, there is no such interference and the rates can be increasing if the externality is large enough relative to the market share of low-type consumers. Stand-alone instruments only achieve second-best outcomes. A minimum quality standard may be set at the high-end of the product line if consumers are not too dissimilar, otherwise it should only target the low-end good. An energy tax should be set above the marginal external cost. Likewise, a uniform ad valorem subsidy should be set above the subsidy that would be needed to specifically internalize energy-use externalities. Lastly, if, as is often observed in practice, only the high-end good is to be incentivized, a per-quality schedule should be preferred over an ad valorem one. An ad valorem tax on the high-end good may even be preferred over an ad valorem subsidy if the externality is small enough and low-end consumers dominate the market.

Suggested Citation

  • Marie-Laure Nauleau & Louis-Gaëtan Giraudet & Philippe Quirion, 2015. "Energy Efficiency Policy with Price-quality Discrimination," Working Papers 2015.33, Fondazione Eni Enrico Mattei.
  • Handle: RePEc:fem:femwpa:2015.33
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    More about this item

    Keywords

    Energy Efficiency; Price-Quality Discrimination;

    JEL classification:

    • Q4 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • Q48 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Government Policy

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