This study explores the multifaceted impacts of Environmental, Social, and Governance (ESG) rating divergence on financial markets, focusing on both equity and bond markets. Despite the growing importance of ESG criteria in investment decisions, discrepancies in ESG ratingsstemming from varying methodologies, standards, and data qualitypose significant challenges. We analyze how these divergences affect corporate reputations, influence investor behavior, and consequently, impact market volatility, funding costs, and liquidity. Our findings indicate that ESG rating discrepancies can lead to increased funding costs, heightened market volatility, and reduced market liquidity, all of which contribute to increased uncertainty for investors. The study suggests that the resolution of these issues requires the harmonization of ESG standards, enhanced regulatory oversight, and greater transparency in rating methodologies. Through comprehensive analysis, this paper contributes to understanding the implications of ESG rating divergence and proposes actionable strategies for stakeholders to mitigate its adverse effects, thereby fostering a more stable and transparent market environment.
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