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Source: Department of Economics, University of Delaware

Resulting in 5 citations.

1.	Dahan, Nayla Gebran
1.	Essays in Labor and Health Economics: Economic Effect of Obesity on Wages and Its Impact Over Time Ph.D. Dissertation, Department of Economics, University of Delaware, 2010 Cohort(s): NLSY79, NLSY97 Publisher: Department of Economics, University of Delaware Keyword(s): Ethnic Differences; Ethnic Groups/Ethnicity; Gender Differences; Heterogeneity; Racial Differences; Wages; Wages, Women; Wages, Youth; Weight Permission to reprint the abstract has not been received from the publisher. This dissertation presents estimates of the effect of weight on wages in the U.S. Several questions are of interest. Do heavier people earn lower wages? Are the effects of weight on wages evenly distributed over the whole range of wages or are the effects concentrated in the lower, middle or upper part of the wage distribution? Do the effects of weight on wages change over time? This dissertation uses two large data sets, the National Longitudinal Surveys of Youth, NLSY79 and NLSY97, and several regression strategies in an attempt to provide answers to these questions. Differences across gender and race are explored. The key finding is that weight lowers wages for white females. Negative correlations between weight and wages observed for other gender-ethnic groups appear to be due to unobserved heterogeneity. The results also suggested that the weight penalty, if it exists, increases with wages for almost all sub-groups except Black males. Finally, the negative effect of weight appears to have decreased when we compare the weight penalty between two cohorts, NLSY79 cohort and NLSY97 cohort, aged between 19 and 29. More research is needed so that we can gain insights about the causes of these penalties. It also provides incentives for policy makers to come up with policies that will help people attain and maintain a healthy weight.
	Bibliography Citation Dahan, Nayla Gebran. Essays in Labor and Health Economics: Economic Effect of Obesity on Wages and Its Impact Over Time. Ph.D. Dissertation, Department of Economics, University of Delaware, 2010.

2.	Falaris, Evangelos M. Peters, H. Elizabeth
2.	New Evidence on the Effect of the Demographic Cycle on the Timing of School Completion Working Paper, Department of Economics, University of Delaware, 1988 Cohort(s): NLSY79, Young Men, Young Women Publisher: Department of Economics, University of Delaware Keyword(s): Behavior; Educational Attainment; Educational Returns; Gender Differences; Modeling; Panel Study of Income Dynamics (PSID); Schooling; Well-Being Permission to reprint the abstract has not been received from the publisher. This paper presents new evidence which rejects the timing hypothesis of the effect of the demographic cycle on schooling which was proposed by Wachter and Wascher (1984). The authors formalize the timing hypothesis in the context of a statistical model and argue that the timing hypothesis implies certain restrictions on the parameters of this model. Using more detailed data than those used by Wachter and Wascher, we estimate the model, test the restrictions, and reject the timing hypothesis. The study of Wachter and Wascher has enhanced our understanding of the effects of the demographic cycle on individual behavior by showing that individuals do not passively suffer any adverse consequences of a baby boom on their economic well-being but they alter their investment in schooling in response to such a demographic phenomenon. This research clarifies the relation between the demographic cycle, schooling attainment and the timing of its completion.
	Bibliography Citation Falaris, Evangelos M. and H. Elizabeth Peters. "New Evidence on the Effect of the Demographic Cycle on the Timing of School Completion." Working Paper, Department of Economics, University of Delaware, 1988.

3.	Falaris, Evangelos M. Peters, H. Elizabeth
3.	Survey Attrition and Schooling Choices Working Paper, Department of Economics, University of Delaware, February 1994 Cohort(s): NLSY79, Young Men, Young Women Publisher: Department of Economics, University of Delaware Keyword(s): Attrition; Data Quality/Consistency; Dropouts; Educational Attainment; Life Cycle Research; Longitudinal Surveys; Modeling; Nonresponse; Panel Study of Income Dynamics (PSID); Schooling Permission to reprint the abstract has not been received from the publisher. It is well known that longitudinal surveys lose parts of their samples over time to attrition (or nonresponse). Little is known, however, about the effect of survey attrition on the estimates of statistical models which are obtained using longitudinal data. In this paper we propose a new method of studying the effect of survey attrition on estimates of statistical models. We apply his method to the study of schooling choices. The present paper uses data from an earlier paper (Falaris and Peters 1992) and investigates the effect of survey attrition on regressions of both schooling attainment of individuals and of the age of school completion on exogenous characteristics. This is accomplished by comparing baseline regressions estimated using all observations on individuals who were observed at a certain point in the life cycle wide regressions based on samples which exclude individuals who missed any interviews either before or after that point. In the life cycle and up to the most recent observation period which is available to us now. We use data from tie Panel Study of Income Dynamics (PSID) and the National Longitudinal Surveys of Labor Market Experience Young Men, Young Women and Youth.
	Bibliography Citation Falaris, Evangelos M. and H. Elizabeth Peters. "Survey Attrition and Schooling Choices." Working Paper, Department of Economics, University of Delaware, February 1994.

4.	Falaris, Evangelos M. Peters, H. Elizabeth
4.	The Effect of the Demographic Cycle on Schooling and Entry Wages Working Paper, University of Delaware, 1988 Cohort(s): NLSY79, Young Men, Young Women Publisher: Department of Economics, University of Delaware Keyword(s): Educational Attainment; Educational Returns; Panel Study of Income Dynamics (PSID); Schooling; Wages Permission to reprint the abstract has not been received from the publisher. This paper examines the effect of the demographic cycle on schooling attainment, age at school completion, and the level of entry wages. Unlike most previous studies which assume that schooling is exogenous, the authors explicitly treat schooling attainment and the age at school completion as choice variables. The direct effect of cohort size on entry wages and its indirect effect on wages through the schooling choices of individuals are studied. It was found that both men and women change their schooling attainment and age at school completion in response to the demographic cycle. These changes lead to significant indirect effects of cohort size on the entry wages of men and of women which tend to mitigate the adverse direct effects on entry wages of an increase in cohort size.
	Bibliography Citation Falaris, Evangelos M. and H. Elizabeth Peters. "The Effect of the Demographic Cycle on Schooling and Entry Wages." Working Paper, University of Delaware, 1988.

5.	Hoffman, Saul D.
5.	Socio-Economic Effects of Teen Childbearing Re-Considered: A Re-Analysis of the Teen Miscarriage Experiment Working Paper No. 2003-08, Department of Economics, University of Delaware, September 2003. Also: http://www.lerner.udel.edu/sites/default/files/imce/economics/WorkingPapers/2003/UDWP2003-08.pdf Cohort(s): NLSY79 Publisher: Department of Economics, University of Delaware Keyword(s): Abortion; Adolescent Fertility; Childbearing; Childbearing, Adolescent; Pregnancy and Pregnancy Outcomes; Pregnancy, Adolescent Permission to reprint the abstract has not been received from the publisher. In an important contribution to the literature on the socio-economic impacts of teen childbearing, Hotz, McElroy, and Sanders used a natural experiment based on the random occurrence of miscarriages. They concluded that the negative impacts of teen childbearing had been substantially exaggerated. In a replication of their work, I identify a number of important errors that undermine their results. Correction and re-estimation with their data show substantially smaller impacts on income variables. Re-estimation with a new data set yields impacts that are smaller yet. The re-estimation generally does not alter the sign of the estimated effects, but does lead to a much more modest conclusion.
	Bibliography Citation Hoffman, Saul D. "Socio-Economic Effects of Teen Childbearing Re-Considered: A Re-Analysis of the Teen Miscarriage Experiment." Working Paper No. 2003-08, Department of Economics, University of Delaware, September 2003.

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