Table 3.
Human capital and labor market productivity
| ln(hourly earnings) | |||||
|---|---|---|---|---|---|
|
| |||||
| (1) | (2) | (3) | (4) | (5) | |
| Height (logarithm) | 3.636 (0.345) | 1.874 (0.304) | 1.942 (0.299) | 1.763 (0.286) | |
| Cognitive assessments (z scores) | |||||
| Raven's progressive matrices | 0.166 (0.017) | 0.077 (0.015) | 0.073 (0.015) | 0.075 (0.015) | |
| Fluid intelligence assessment | 0.164 (0.017) | 0.056 (0.016) | 0.049 (0.016) | 0.036 (0.015) | |
| Working memory: Immediate | 0.127 (0.021) | 0.052 (0.019) | 0.045 (0.019) | 0.031 (0.018) | |
| Working memory: Delayed | 0.045 (0.020) | 0.028 (0.018) | 0.026 (0.018) | 0.024 (0.017) | |
| Completed education (years) | 0.083 (0.003) | 0.075 (0.003) | 0.071 (0.003) | ||
| Health indicators | |||||
| BMI (logarithm) | 1.016 (0.096) | 0.964 (0.095) | |||
| (1) if difficulty running 1km | −0.049 (0.024) | −0.040 (0.023) | |||
| Systolic blood pressure | 0.025 (0.009) | 0.022 (0.008) | |||
| Pulse pressure | −0.045 (0.011) | −0.055 (0.010) | |||
| Local market fixed effects | . | . | . | . | Y |
| Joint tests (F-statistics) | |||||
| All human capital markers | 111.2 | 252.4 | 170.1 | 129.7 | |
| Cognitive assessments | 172.6 | 28.02 | 24.25 | 19.45 | |
| Health indicators | 36.00 | 36.07 | |||
| Sample size | 38,430 | 38,430 | 38,430 | 38,430 | 38,430 |
Note: Standard errors in parentheses and all test statistics based on estimates clustered at the individual level and robust to arbitrary forms of heteroskedasticity. All models include flexible age controls and survey wave fixed effects.