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Market reactions to earnings surprises: The role of ESG performance
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School of Business |
Bachelor's thesis
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en
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33 + 6
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This thesis examines whether ESG ratings influence stock market reactions to earnings surprises among large EU firms between 2009 and 2024. Using event-study regression models, the analysis finds that earnings surprises are the primary driver of announcement-period abnormal returns, while ESG rating levels do not significantly affect market reactions or their sensitivity to earnings news. The introduction of mandatory non-financial reporting does not alter this relationship. Additional evidence suggests that disagreement among ESG rating providers reflects broader firm-specific uncertainty rather than value-relevant sustainability information. Overall, short-term market reactions to earnings announcements appear largely independent of ESG ratings.