609/2022 Victor Lavy

We estimate the short-run and longer-term effects of gifted children programs (GCP) in high schools in Israel. The program tracks the most talented students into gifted children classes, starting 10th grade. They receive more resources in smaller classes, a unique curriculum, access to high-quality teachers, and courses in universities. We use test scores in exams that measure cognitive achievements or intelligence and ability, measured in different ages, to select a comparison group of equally gifted students from other cities where GCP was not offered at the time. Based on administrative data, we follow 22 cohorts of GCP participants who graduated high school in 1992-2013. We measure treatment effects on outcomes, ranging from high school to the labour market in their 30s and 40s. Remarkably, the results we obtain do not vary when using alternative measures of ability or in the age, they are assessed. The evidence on the impact of GCP on academic achievements in high school is mixed, some compulsory subjects are affected negatively, and fewer are affected positively. However, these estimates are very small, implying a tiny effect size. These results stand in contrast to the abundance of educational resources enjoyed by GCP participants, in addition to better peers in terms of SES background and outcomes. We discuss in this context the objective of the program to widen the scope and area of interest of its participants beyond the regular curriculum. We also highlight the potential adverse effect of the Big-Fish-Little-Pond Effect. In the longer run, we find meaningful positive effects of GCP on higher education attainment. All gifted children achieve a BA degree, but a much higher share of GCP participants graduate with a double major. The effect of getting a Ph.D. is also positive, driven by more Ph.D. degrees in Elite Universities. GCP participants study more math, computer, and physical sciences but engage less in engineering programs. The net effect on STEM degrees is, therefore, zero. However, a much higher share of GCP participants graduated with two STEM majors. This evidence, along with the significant effect on a double major, suggests that GCP enhances the impact of “multipotentiality,” which characterizes many gifted adolescents. We find no effect of GCP on employment and earnings. Nor do we find that they work more than other equally talented children in the various sectors of the knowledge economy: hi-tech manufacturing, hi-tech services, and academic institutions. Finally, we examine marriage and family formation patterns as mediating effects and find no discerned GCP effects.

In the short-term, medium-run, and into adulthood, these comprehensive sets of results are not qualitatively different for females and males gifted children who participated in GCP. Treatment heterogeneity by giftedness level allows us to compare our results to earlier studies that used regression discontinuity designs to identify GCP effects on only marginally eligible students for such programs. We find meaningful differences in treatment effect between marginal and inframarginal gifted children, suggesting that it is essential to examine GCP’s impact over the whole spectrum of Giftedness. Importantly, we find that GCP similarly affects low and high-SES students. Half of the students among the six youngest cohorts in our sample started the program in middle school, while the others did that in high school. We find no differences in GCP effect on high school and university outcomes by the length of the program.

Public Policy and Data

National Bureau of Economic Research

https://dx.doi.org/10.3386/w29779