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Journal of Financial Economics Vol. 175 2026

Policy uncertainty reduces green innovation

Mengyu Wang1; Jeffrey Wurgler2; Hong Zhang1

1 Singapore Management University · 2 New York University

open access

Abstract

Policy uncertainty can undermine the power of government subsidies to stimulate environmentally friendly research and development. We show that Chinese firms’ green R&D falls as the uncertainty of environmental subsidies rises: Exogenous, weather-driven air pollution variability induces subsidies to fluctuate, and firms in areas with high weather-driven subsidy variability undertake less green R&D and hire fewer technical employees, controlling for the average level of subsidies. Heavy emitters and environmental technology firms are more affected. The results also illustrate how policy uncertainty can arise when policymakers are influenced by conditions that are salient but with causes that are difficult to disentangle.

DOI
10.1016/j.jfineco.2025.104189
Volume
175
Pages
104189
Language
en
Sources
openalex crossref bibtex:phds-export.bib

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