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Environmental Awards in a Duopoly with Green Consumers

Author

Listed:
  • Lisa Heidelmeier
  • Marco Sahm

Abstract

We investigate the impact of an environmental award in a Bertrand duopoly with green consumers considering a three-stage game. First, the regulator designs the environmental contest. Second, firms choose their green investments, and the winner of the contest is awarded. Third, firms compete in prices, and consumption takes place. We illustrate that the award not only incentivizes green investments and may thus reduce environmental externalities. As consumers perceive the product of the awarded firm to be of superior quality, it also gives rise to vertical product differentiation. This induces market power, and thus anti-competitive effects: Rents shift from consumers to producers, and consumer surplus may decrease, particularly if marginal investment costs in green technologies are high compared to the strength of environmental damage.

Suggested Citation

  • Lisa Heidelmeier & Marco Sahm, 2025. "Environmental Awards in a Duopoly with Green Consumers," CESifo Working Paper Series 11879, CESifo.
    • Handle: RePEc:ces:ceswps:_11879
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    File URL: https://www.ifo.de/DocDL/cesifo1_wp11879.pdf
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    More about this item

    Keywords

    Bertrand competition; contests; environmental award; green consumer; product differentiation;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • H23 - Public Economics - - Taxation, Subsidies, and Revenue - - - Externalities; Redistributive Effects; Environmental Taxes and Subsidies
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L51 - Industrial Organization - - Regulation and Industrial Policy - - - Economics of Regulation
    • Q52 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Pollution Control Adoption and Costs; Distributional Effects; Employment Effects
    • Q58 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Government Policy

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