Asset Prices and Portfolios with Externalities*

Pricedetermination in the EU ETS market: theory and econometric analysis with market fundamentals

Steven D. Baker, Burton Hollifield and Emilio Osambela

Review of Finance, 2022, vol. 26, issue 6, 1433-1468

Abstract: Elementary portfolio theory implies that environmentalists optimally hold more shares of polluting firms than non-environmentalists, and that polluting firms attract more investment capital than otherwise identical non-polluting firms through a hedging channel. Pigouvian taxation can reverse the aggregate investment results, but environmentalists still overweight polluters. We introduce countervailing motives for environmentalists to underweight polluters, comparing the implications when environmentalists coordinate to internalize pollution, or have nonpecuniary disutility from holding polluter stock. With nonpecuniary disutility, introducing a green derivative may dramatically alter who invests most in polluters, but has no impact on aggregate pollution.

Keywords: Socially responsible investment; ESG; Portfolio theory; Hedging; Externality (search for similar items in EconPapers)
JEL-codes: G11 G18 H23 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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