IEA (2021), Indicators of economy-wide cost of capital for equity (government bond + equity risk premium), nominal values, 2016 and 2020, IEA, Paris https://www.iea.org/data-and-statistics/charts/indicators-of-economy-wide-cost-of-capital-for-equity-government-bond-equity-risk-premium-nominal-values-2016-and-2020, Licence: CC BY 4.0