
https://www.kauffman.org/wp-content/uploads/2019/12/CapitalReport_042519.pdf

https://wiiw.ac.at/trade-balances-and-international-competitiveness-in-cyber-physical-digital-task-intensive-ict-capital-intensive-and-traditional-industries-dlp-6561.pdf

https://www.ips-journal.eu/topics/economy-and-ecology/a-plea-for-political-economy-7672/