https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1710en.pdf
https://journals.sagepub.com/doi/pdf/10.1177/10242589211022550
https://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.34.2.172
https://esg.wharton.upenn.edu/zicklin-center/zicklin-bright-index/