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Abstract: My dissertation consists of three applied studies in the area of public finance and labor economics. In the first chapter, "The effect of financial aid and tax policies on educational choices", I build and estimate a structural dynamic life-cycle model of education choices, labor force participation, and saving decisions by young men in the United States. The model is estimated with the method of simulated moments using a longitudinal sample of white, black, and Hispanic young men from the 1997 panel of the National Longitudinal Survey of Youth. The model incorporates unobservable abilities, tuition costs, and the main features of the U.S. federal income tax. In particular, it takes into account the structure of the Lifetime Learning Tax Credit. I use the estimated model to simulate the impact of a number of education policy changes. I find a sizeable effect on college enrollment from a general tuition reduction as well as a large increase in graduate school attendance from making the Lifetime Learning Tax Credit refundable. In the second chapter, "Aggregate wage dynamics and labor supply: an application to the U.S.", I estimate labor supply elasticities using the change in the return to skills over time as a source of exogenous variation in gross wages. The last few decades have seen a tremendous amount of change in the U.S. labor market: female labor force participation rates have risen, while the wage premium for college education and wage inequality have increased because of an higher demand for skilled labor. The number of hours worked is found to react weakly to changes in the offered wage. In the third chapter, "Labor supply effects of tax-based income-support mechanisms", I build and estimate a static discrete choice model of labor supply for single women in the United States. It incorporates the main features of the federal income tax. I estimate the model using cross-sectional data, and I use it to simulate hypothetical reforms to the tax and benefit system, which is found to have a large effect on the labor force participation decision of single individuals.
Monographic compilation of essays in labour economics - covers labour demand and labour supply in the USA civil service, economic models of collective bargaining during labour disputes, economic analysis of job satisfaction, costs of job searching, etc. Diagrams, graphs, references, statistical tables. Festschrift comay yp 1939-1973.
This dissertation studies two distinct issues in the field of labor economics: the labor supply of new mothers and firms' adjustments to changing labor costs. In both cases, I study the effect of labor market policies, both because they provide quasi-exogenous variation in otherwise endogenous variables of interest, and because of the intrinsic interest in studying the welfare implications of specific policies that governments have direct control over. The first two chapters, written jointly with Ludovica Ciasullo, consider how maternal labor supply is impacted by working conditions, and how it in turn affects intrahousehold bargaining and task allocation within the household. In the first chapter we study which work arrangements new mothers choose when allowed to do so, and whether these work arrangements affect their labor supply choices. We exploit the Australian 2009 Fair Work Act, which explicitly entitled parents of young children to request a (reasonable) change in work arrangements. Leveraging variation in the timing of the law, timing of childbirth, and the bite of the law across different occupations and industries, we establish two main results. First, if allowed to request a change in work arrangements, new mothers ask for regularity in their schedule. Second, with regular schedules, working mothers' child penalty declined from a 47 percent drop in hours worked to a 40 percent drop. For the most exposed mothers, the Fair Work Act led to both a doubling in schedule regularity, and a 30% decrease in the child penalty in hours of work. After establishing that an increase in schedule regularity leads to an increase in maternal labor supply, in the second chapter we study how this translates into division of labor within the household. First, we document that at baseline children bring a 40% increase in their parents' active time -- that is, total time spent on paid work, housework, or parenting -- and that this increase falls disproportionately on mothers, by a 2-to-1 ratio. Second, by exploiting the improvement in maternal labor market conditions brought about by the Australian 2009 Fair Work Act, we show that this gendered allocation of time is not affected by improved labor market prospects for women. Finally, we show that mothers who work longer hours reduce housework, but not time spent directly with children, mitigating concerns that maternal participation in the labor market comes at their children's expense. The third chapter, written jointly with Andrea Manera, focuses on how labor costs -- via stringency of labor regulations -- influence firms' innovation choices. We study the impact of employment protection legislation (EPL) on firms' innovation, through an event-study analysis of labor market reforms occurring in Europe over 2000-2016. Data from the Community Innovation Survey reveal that substantial drops in EPL for temporary workers prompt a reallocation of innovation towards the introduction of new products, away from process innovation aimed at cutting labor costs. Among innovative firms, the share of product innovators increases by 15% of the pre-reform value, while the share of firms specializing in process innovation falls by 35%. We develop a theoretical framework of directed technical change to rationalize our findings.
In my third essay, I estimate a learning-by-doing model using PSID data. By working longer hours in the present, an individual receives higher wages in the future. Estimates reveal that by increasing hours worked in a given year by 10%, next year's wage should increase by 1%.