https://www.bloomberg.com/graphics/2019-european-capital-markets/
http://www.economics-ejournal.org/economics/journalarticles/2017-10
https://www.brookings.edu/wp-content/uploads/2024/03/3_Arslanalp-et-al_unembargoed.pdf
https://www.boeckler.de/fpdf/HBS-008396/p_imk_pb_132_2022.pdf