NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Bulent Unel

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Working Papers

September 2013The Impact of Mothers’ Earnings on Health Inputs and Infant Health
with Naci Mocan, Christian Raschke: w19434
This paper investigates the impact of mothers’ earnings on birth weight and gestational age of infants. It also analyzes the impact of earnings on mothers’ consumption of prenatal medical care, and their propensity to smoke and drink during pregnancy. The paper uses census-division- and year-specific skill-biased technology shocks as an instrument for mothers’ earnings and employs a two-sample instrumental variables strategy. About 14 million records of births between 1989 and 2004 are used from the Natality Detail files along with the CPS Annual Demographic Files from the same period. The results reveal that an increase in weekly earnings prompts an increase in prenatal care of low-skill mothers (those who have at most a high school degree) who are not likely to be on Medicaid, and tha...
November 2011Skill-biased Technological Change, Earnings of Unskilled Workers, and Crime
with Naci H. Mocan: w17605
This paper investigates the impact of unskilled workers' earnings on crime. Following the literature on wage inequality and skill-biased technological change, we employ CPS data to create state-year as well as state-year-and (broad) industry specific measures of skill-biased technological change, which are then used as instruments for unskilled workers' earnings in crime regressions. Regressions that employ state panels reveal that technology-induced variations in unskilled workers' earnings impact property crime with an elasticity of -1, but that wages have no impact on violent crime. The paper also estimates, for the first time in this literature, structural crime equations using micro panel data from NLSY97 and instrumenting real wages of young workers. Using state-year-industry spe...

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