https://ecipe.org/wp-content/uploads/2022/11/ECI_22_OccPaper_D9DigPol_05_2022_LY04.pdf
https://openmarketsinstitute.org/wp-content/uploads/2020/04/OMI-House-Letter-4.17.20.pdf
https://www.brookings.edu/articles/disquiet-in-the-worlds-middle-class/
https://journals.sagepub.com/doi/pdf/10.1177/00187267231218430