2023-03-28-IMF-解构ESG分数_如何根据自己的标准进行投资_（英）_56页_1mb

报告摘要

Deconstructing ESG Scores: How to Invest with your own Criteria?

Environmental, Social, and Governance (ESG) scores are tools for asset managers to implement investment strategies, but they aggregate fundamental factors, creating ambiguity. The paper deconstructs ESG scores using Refinitiv data to analyze performance at the category level by focusing on specific factors such as emissions reduction and human rights.

Key Findings

ESG Components: ESG scores consist of 186 metrics grouped into three pillars (Environmental, Social, Governance) and ten categories.
Data Quality Issues: Emission categories (e.g., reduction) suffer from high missing data, while Innovative activities are low for sectors like Finance, making certain categories difficult to use for targeted strategies.
Screening Effectiveness:
- Excluding companies with the lowest scores (e.g., 33% threshold) improves the targeted ESG category score by up to 21 points, with minimal impact on portfolio performance.
- The "best-in-class" strategy, which excludes the worst performers and reinvests in the best, reduces regional and sectoral biases while maintaining score gains and enhancing risk-adjusted returns.
Financial Performance: Portfolios constructed with this methodology achieve nearly the same risk-adjusted returns as the benchmark (MSCI ACWI) without compromising ESG objectives.

Recommendations

Investors should target specific ESG categories while maintaining the regional and sectoral exposures of the market benchmark. This approach achieves ESG goals with low financial performance costs and manageable tracking errors.