OLS analysis results

Variables

Coefficient (β)

Error

[95% conf. interval]

Year of schooling

0.077

0.0010879

0.0744/0.0786

Working-age

0.202

0.0017269

0.1989/0.2057

Squared working-age

−0.002

0.0000216

−0.00222/−0.00213