https://lawliberty.org/book-review/the-canary-in-the-feds-coal-mine/
https://www.propublica.org/article/how-private-nonprofits-ultrawealthy-tax-deductions-museums-foundation-art
https://www.nber.org/system/files/working_papers/w27488/w27488.pdf
https://blogs.lse.ac.uk/europpblog/2022/09/08/why-the-eu-needs-a-wartime-investment-plan/