Appendix table A1
Changes in specification and sample restrictions
| Sample restrictions and regression specification | Original sample and model used in previous work | Sample and model used in this paper |
|---|---|---|
| Dependent variable log weekly wage | Yes | Yes |
| Self-employed workers dropped | Yes | Yes |
| Weekly hours ≥ 35 | Yes | Yes |
| Imputed CPS wage data dropped | Yes | Yes |
| Age range 18–64 | Yes | Yes |
| Top-code-adjusted dataa | No | Yes |
| Education sample restriction | None | B.A. or higher |
| Education category controlsb | 6 | 4 |
| Race/ethnic controls: w,b,h,oc | Yes | Yes |
| Married indicator | Yes | Yes |
| Geographic controls | Region | State |
| Age quartic controls | Yes | Yes |
| Gender control (pooled regressions) | Yes | Yes |
| Private-sector teacher indicator | Yes | Yes |
| Public-sector teacher indicator | Yes | Yes |
| Include CPS-ORG weight in regressions | No | Yes |
a We adjust top codes using Pareto distribution.
b Six groups: less than high school, high school diploma, some college or associate degree, bachelor’s degree, master’s degree, professional degree/Ph.D. (combined). Four groups: bachelor’s degree, master’s degree, professional degree, Ph.D.
c White, black, Hispanic, other. Race/ethnicity categories are mutually exclusive (i.e., white non-Hispanic, black non-Hispanic, other non-Hispanic, and Hispanic any race).
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