https://agsi.gie.eu/
https://www.eca.europa.eu/Lists/ECADocuments/SR23_03/SR_Energy_Union_EN.pdf
https://knowledge.wharton.upenn.edu/article/endowment-effect-trading-decisions-are-observable-in-the-eyes-of-buyers-and-sellers/
https://www.ippr.org/files/2017-09/cej-interim-report-summary-170911.pdf