Concave-Monotone Treatment Response and Monotone Treatment Selection: With an Application to the Returns to Schooling

This paper identifies sharp bounds on the mean treatment response and average treatment effect under the assumptions of both concave monotone treatment response (concave-MTR) and monotone treatment selection (MTS). We use our bounds and the US National Longitudinal Survey of Youth to estimate mean returns to schooling. Our upperbound estimates are substantially smaller than (1) estimates using only the concave-MTR assumption of Manski (1997) and (2) estimates using only the MTR and MTS assumptions of Manski and Pepper (2000). They fall in the lower range of the point estimates given in previous studies that assume linear wage functions. This is because ability bias is corrected by assuming MTS when the functions are close to linear. Our results therefore imply that higher returns reported in previous studies are likely to be overestimated.Nonparametric Methods, Partial Identification, Sharp Bounds, Treatment Response, Returns to Schooling

Do Parents' Social Skills Influence Their Children's Sociability?

This paper examines the effect of parents' social skills on children's sociability, using the U.S. National Longitudinal Survey of Youth 1979 (NLSY79). This survey, like some other national surveys, lacks detailed information on parents; to remedy this deficiency, we construct a measure of parents' "sociability" skills based on their occupational characteristics from the Dictionary of Occupational Titles (DOT). The sociability relationship varies across parents and children by gender, but remains statistically significant (especially between fathers and sons), even after controlling for a variety of other background characteristics.sociability, intergenerational correlations, occupational characteristics

Do Parents' Social Skills Influence Their Children's Sociability?

This paper examines the effect of parents' social skills on children's sociability, using the U.S. National Longitudinal Survey of Youth 1979 (NLSY79). This survey, like some other national surveys, lacks detailed information on parents; to remedy this deficiency, we construct a measure of parents' "sociability" skills based on their occupational characteristics from the Dictionary of Occupational Titles (DOT). The sociability relationship varies across parents and children by gender, but remains statistically significant (especially between fathers and sons), even after controlling for a variety of other background characteristics.Social skills, Intergenerational correlations, Occupational characteristics

Work Hours, Wages, and Vacation Leave

Using the Panel Study of Income Dynamics and the Health and Retirement Study, we provide a set of facts about vacation leave and its relationship to hours worked, hours constraints, wage rates, worker characteristics, spouse's vacation leave, labor market experience, job tenure, occupation, industry, and labor market conditions. We show that on average vacation time taken rises 1 to 1 with paid vacation but varies around it, that annual hours worked fall by about 1 full time week with every week of paid vacation, that the gap between time taken and time paid for is higher for women, union members, and government workers, that hourly wage rates have a strong positive relationship with paid vacation weeks both in the cross section and across jobs, and that nonwage compensation is positively related to vacation weeks. We provide evidence that vacation leave is determined by broad employer policy rather than by negotiation between the worker and firm. In particular, it is strongly related to job seniority but depends very little on labor market experience, and for job changers it is only weakly related to the amount of vacation on the previous job.

Concave-monotone treatment response and monotone treatment selection: With an application to the returns to schooling

This paper identifies sharp bounds on the mean treatment response and average treatment effect under the assumptions of both concave monotone treatment response (concave-MTR) and monotone treatment selection (MTS). We use our bounds and the US National Longitudinal Survey of Youth to estimate mean returns to schooling. Our upper-bound estimates are substantially smaller than (1) estimates using only the concave-MTR assumption of Manski (1997) and (2) estimates using only the MTR and MTS assumptions of Manski and Pepper (2000). They fall in the lower range of the point estimates given in previous studies that assume linear wage functions. This is because ability bias is corrected by assuming MTS when the functions are close to linear. Our results therefore imply that higher returns reported in previous studies are likely to be overestimated

Breastfeeding Practices and Parental Employment in Japan

Much research shows that breastfeeding provides short- and long-term health benefits for both mothers and their children. However, few studies have yet investigated the factors which may promote or inhibit breastfeeding practices in Japan. To fill this research gap, this paper uses data newly gathered in 2012 on breastfeeding initiation and duration for each child of each mother, which enable us to estimate mother fixed-effects models that control for unobserved differences among mothers. Compared to mothers who leave their jobs after childbirth, mothers who return to work within a year after childbirth do not significantly differ in breastfeeding initiation but have a breastfeeding duration which is shorter by 1.654 months. On the other hand, when fathers work under a flextime system after childbirth, breastfeeding initiation is higher, and the duration is longer by 4.418 months. Therefore, letting fathers work under a flextime system would help promote breastfeeding practices in Japan

Do parents' social skills influence their chidren's sociability?

This paper examines the effect of parents' social skills on children's sociability, using the U.S. National Longitudinal Survey of Youth 1979 (NLSY79). This survey, like some other national surveys, lacks detailed information on parents; to remedy this deficiency, we construct a measure of parents' sociability skills based on their occupational characteristics from the Dictionary of Occupational Titles (DOT). The sociability relationship varies across parents and children by gender, but remains statistically significant (especially between fathers and sons), even after controlling for a variety of other background characteristics

Intergenerational Transmission of Skills and Differences in Labor Market Outcomes for Blacks and Whites

This paper investigates, theoretically and empirically, differences between blacks and whites in the U.S. concerning the intergenerational transmission of occupational skills and the effects on sons' earnings. The father-son skill correlation is measured by the correlation coefficient (or cosine of the angle) between the father's skill vector and the son's skill vector. The skill vector comprises an individual's occupational characteristics from the Dictionary of Occupational Titles (DOT). According to data from the U.S. National Longitudinal Survey of Youth (NLSY79), white sons earn higher wages in occupations that require skills similar to those of their fathers, whereas black sons in such circumstances incur a wage loss. A large portion of the racial wage gap is explained by the father-son skill correlation. However, a significant unexplained racial wage gap remains at the lower tail of the wage distribution

Effect of Pension Reform on Pension-Benefit Expectations and Savings Decisions in Japan

Using the Japanese Study of Aging and Retirement (JSTAR), a Japanese panel survey of people age 50 or older, we find that many Japanese in their early 50s—compared to those in their late 50s and early 60s—expect their level of public pension benefits to decline. We find that recent pension reform (which raised the pensionable age) affected people by increasing the age when they expect to claim their benefits by almost the exact amount for all. Nevertheless, the effect of reform on their expectations for future benefits remained insignificant. We also find evidence that anxiety about the public pension program's future induces people to save more.