Table 8 Estimated average treatment effect on the treated computed with respect to the age classes 15--20; 30--32; 35--40 (DID-p.score-matching)

\( {A {\,\hat{{\!}T}} T} \) _{15–20 cohort}

0.1576029

\( {A {\,\hat{{\!}T}} T} \) _{30–32 cohort}

−0.0031796

\( {A {\,\hat{{\!}T}} T} \) _{35–40 cohort}

0.0022628

(bootstrap std. err.)

(0.0226783)

(bootstrap std. err.)

(0.0158533)

(bootstrap std. err.)

(0.0133871)