... 2007AbstractEstimating the returns to education is difficult in part because we rarely observe the coun-terfactual of the wages without the education. One of the advantages of examining the returns to an ... while their is amodest increasing trend for men in the point estimates of the coefficients on these variables, none of the coefficients are statistically significant. Furthermore, the estimates of the ... r∂Φ(·)∂EYik∂EY0ik∂γi.Again, we expect the first term to be positive as the first term inside the brackets is expectedto dominate the second. The second term is again negative. However, unlike the case with the Ashenfelter...