https://www.ips-journal.eu/topics/european-integration/europe-needs-to-spend-its-money-better-7243/
https://www.nuffieldtrust.org.uk/files/2020-07/hospital-building-programme-paper-web-final.pdf
https://theconversation.com/macroeconomia-vs-microeconomia-los-datos-para-espana-son-buenos-pero-sus-hogares-se-empobrecen-213849