http://www.levyinstitute.org/pubs/wp_886.pdf
https://www.socialeurope.eu/corporate-taxation-financing-state-and-welfare
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwij8PLy0aH1AhVEhP0HHf7rAYwQFnoECAYQAQ&url=https%3A%2F%2Fassets.gov.ie%2F203426%2F468690ef-2b01-4d7d-a6d3-c0cbabcab3cb.pdf&usg=AOvVaw2-vnoHbS5dgbnNXNla3sLK
https://knowledge.wharton.upenn.edu/article/how-the-u-s-could-stabilize-debt-and-fuel-economic-growth/