https://www.brookings.edu/blog/the-avenue/2020/11/09/biden-voting-counties-equal-70-of-americas-economy-what-does-this-mean-for-the-nations-political-economic-divide/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=99541835&utm_source=hs_email
https://www.economiesuisse.ch/sites/default/files/publications/es_sbi_d_web.pdf
https://www.brookings.edu/blog/fixgov/2022/06/24/the-supreme-courts-abortion-decision-just-the-beginning-of-the-battle/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=217612037&utm_source=hs_email