https://www.hamiltonproject.org/assets/files/UnionsEA_Web_8.19.pdf
https://www.adamsmith.org/adam-smith-lecture/
https://www.boeckler.de/data/downloads/IMK/FMM%20Konferenz%202023/v_2023_10_20_goekten.pdf
https://www.boeckler.de/pdf/p_study_hbs_376.pdf