Market-based oil spill(overs): Market reactions to the energy windfall tax announcements and disclosures in the United Kingdom

Kristian D. Allee, Raffael Speitmann, Arthur Stenzel and Yuchen Wu

Economics Letters, 2024, vol. 238, issue C

Abstract: We investigate the market reaction to a windfall tax regulation announcement for oil and gas firms in the UK. We find that firms subject to the windfall tax experience a significant abnormal price effect of 6.0 to 7.3 %. The effect is concentrated among large and more profitable firms. The results also show that firms voluntarily disclose more precise information after the regulation to offset the negative abnormal price reaction at the windfall tax announcement date. Evidence suggests that these disclosures are largely effective at allaying the price effects associated with increased investor disagreement. Moreover, our analyses show that firms within the same industry experience a negative spillover effect and decreased investor demand associated with heightened policy uncertainty about the implementation of windfall tax regulation. This version: February 2024

Keywords: Windfall tax; Excess profits tax; Oil and gas; Information spillover; Voluntary disclosure (search for similar items in EconPapers)
JEL-codes: G14 G15 G28 H20 H25 M41 (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecolet:v:238:y:2024:i:c:s0165176524001538

DOI: 10.1016/j.econlet.2024.111670

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