https://www.bruegel.org/sites/default/files/2023-04/PB%2009%202023_0.pdf
https://extranet.acer.europa.eu/Official_documents/Acts_of_the_Agency/Publication/ACER’s%20Final%20Assessment%20of%20the%20EU%20Wholesale%20Electricity%20Market%20Design.pdf
https://ec.europa.eu/competition/publications/reports/kd0419345enn.pdf
https://ukandeu.ac.uk/is-economic-output-an-accurate-measure-of-the-covid-19-impact/