# ESG rating changes and portfolio returns: A wavelet analysis across market caps

> Research article (Finance research letters, 2024) · cited 16× · AI/ML

**Wikidata**: [openalex:W4393198208](https://www.wikidata.org/wiki/openalex:W4393198208)  
**Source**: https://4ort.xyz/entity/esg-rating-changes-and-portfolio-returns-a-wavelet-analysis-across-market-caps