| Type . | Study . | Source . | Sample . | Outcome Year(s) . | “Treatment” . | Earnings Premium . |
|---|---|---|---|---|---|---|
| Survey data | Kane and Rouse 1995 | NLSY - 79 | 25- to 32-year-olds | 1990 | CC, no degree | 0.101 |
| AA degree | 0.271 | |||||
| Gill and Leigh 1997 | NLSY - 79 | 28- to 35-year-old returning students | 1993 | CC, no degree | 0.080 | |
| AA degree | 0.221 | |||||
| HS&B | ∼28 year-olds | 1992 | CC, no degree | 0.079 | ||
| AA degree | 0.253 | |||||
| Administrative data | Jacobson, LaLonde, and Sullivan 2005 | Washington | Displaced workers | 1990—95 | CC, any enrollment | 0.026 |
| CC, 4—75 Credits | 0.148 | |||||
| Jepsen at al. 2014 | Kentucky | 20- to 60-year-olds w/work history | 2000—08 | AA degree | 0.522 | |
| Bahr 2016 | California | First time college students | 2002—13 | AA degree | 0.351 | |
| Liu, Belfield, and Trimble 2014 | North Carolina | Adults entering CC in 2002—03 | 2011 | 1-year FTE CC | 0.101 | |
| AA degree | 0.277 | |||||
| Belfield 2015 | Arkansas | Adults with work history | 2000—2012 | AA degree | 0.102 |
| Type . | Study . | Source . | Sample . | Outcome Year(s) . | “Treatment” . | Earnings Premium . |
|---|---|---|---|---|---|---|
| Survey data | Kane and Rouse 1995 | NLSY - 79 | 25- to 32-year-olds | 1990 | CC, no degree | 0.101 |
| AA degree | 0.271 | |||||
| Gill and Leigh 1997 | NLSY - 79 | 28- to 35-year-old returning students | 1993 | CC, no degree | 0.080 | |
| AA degree | 0.221 | |||||
| HS&B | ∼28 year-olds | 1992 | CC, no degree | 0.079 | ||
| AA degree | 0.253 | |||||
| Administrative data | Jacobson, LaLonde, and Sullivan 2005 | Washington | Displaced workers | 1990—95 | CC, any enrollment | 0.026 |
| CC, 4—75 Credits | 0.148 | |||||
| Jepsen at al. 2014 | Kentucky | 20- to 60-year-olds w/work history | 2000—08 | AA degree | 0.522 | |
| Bahr 2016 | California | First time college students | 2002—13 | AA degree | 0.351 | |
| Liu, Belfield, and Trimble 2014 | North Carolina | Adults entering CC in 2002—03 | 2011 | 1-year FTE CC | 0.101 | |
| AA degree | 0.277 | |||||
| Belfield 2015 | Arkansas | Adults with work history | 2000—2012 | AA degree | 0.102 |
Notes: Estimates of earnings premia for community college students are weighted averages based on author's calculations using reported coefficients, means, and sample sizes. NLSY = National Longitudinal Survey of Youth; CC = community college; AA = Associate's; HS&B = High School and Beyond; FTE = full-time equivalent.