The results for women are presented in Table 6. Unlike Montgomery and Powell (2003), the estimated returns to an MBA are consistently lower for women. The return to an MBA for women is estimated to be with no ability controls and falls to with ability controls. The fixed effect estimate is a little under 4%. The return to math ability is higher for women than for men, with again no return to verbal ability. This finding is consistent with the twins’ literature that finds that OLS estimates of the return to schooling are biased upward compared to twin fixed effects (See Card (1999) for.
