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arXiv · 2506.02143

Green Shields: The Role of ESG in Uncertain Time

Fatih Kansoy·Dominykas Stasiulaitis
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Abstract

The rapid growth of sustainable investing, now exceeding 35 trillion USD globally, has transformed financial markets, yet the implications for monetary policy transmission remain underexplored. While existing literature documents heterogeneous firm responses to monetary policy through traditional channels such as size and leverage, it remains unknown whether environmental, social, and governance (ESG) characteristics create distinct transmission mechanisms. Using high-frequency identification around 160 Federal Reserve announcements from 2005 to 2025, we uncover an asymmetric pattern: high-ESG firms gain 1.6 basis points of protection from contractionary target surprises, yet suffer 2.6 basis points greater sensitivity to forward guidance shocks. This asymmetry persists within industries and intensifies with investor climate awareness. Remarkably, the Paris Agreement inverted these relationships: before December 2015, high-ESG firms were more vulnerable to contractionary policy within industries; afterward, they gained protection, representing a 186 basis point reversal. We develop a two-period model featuring heterogeneous investors with sustainability preferences that quantitatively matches these patterns. The model reveals how ESG investors' non-pecuniary utility creates differential demand elasticities, simultaneously protecting green firms from immediate rate changes while amplifying forward guidance vulnerability through their longer investment horizons. These findings establish environmental characteristics as a new dimension of monetary policy non-neutrality, with important implications as sustainable finance continues expanding.

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Fatih Kansoy, Dominykas Stasiulaitis. 2025-06-02. Green Shields: The Role of ESG in Uncertain Time. https://arxiv.org/abs/2506.02143

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