1. Digest of Education Statistics: 2016,2018
2. Vespa J. The changing economics and demographics of young adulthood: 1975–2016. Washington, DC: U.S. Census Bureau; 2017 Apr. Report No. P20-579.
3. Social and economic returns to college in the United States;M Hout;Annu Rev Sociol,2012
4. Credentials, signals, and screens: explaining the relationship between schooling and job assignment;DB Bills;Rev Educ Res,2003
5. Why are recent college graduates underemployed? University enrollments and labor-market realities;R Vedder,2013