https://www.socialeurope.eu/stability-or-stagnation-how-europes-fiscal-rules-are-strangling-growth
https://knowledge.wharton.upenn.edu/article/will-the-2-trillion-coronavirus-relief-package-be-enough/?utm_source=kw_newsletter&utm_medium=email&utm_campaign=2020-03-31
https://www.pwc.com/co/es/publicaciones/assets/world-in-2050-final-report-february-2015-colombia.pdf
https://www.socialeurope.eu/becoming-like-germany-hurdles-and-dilemmas