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Ongoing shortages of agricultural workers have increased concerns about long-run sustainability for many U.S. producers. Particularly for producers of labor-intensive crops, employers are worried that labor shortages will lead to unharvested fields, lower outputs, and falling profits. Employers, policy makers, and academics can benefit from understanding factors that affect worker productivity, output quality, and worker labor supply. In my dissertation, I examine the effects of a minimum wage increase on worker productivity, the link between a worker's speed and the quality of output produced, and the determinants of intensive-margin labor supply. As a whole, my dissertation sheds light on behavioral responses to incentives in the workplace and shows how these responses can cause inefficiencies in federal, state, and employer policies. In the first chapter of my dissertation, I study how minimum wages and piece rate wages can interact to affect worker productivity. In the United States, minimum wage laws set a lower bound on earnings of piece rate workers. In agriculture, piece rates and productivity levels often result in minimum wages acting as a binding earnings floor. I develop a simple theoretical framework to demonstrate how an increase in this binding wage floor can cause workers to reduce effort and thus decrease productivity. I give empirical evidence of this prediction using the payroll records of strawberry harvesters on a large farm in Northern California. Using a fixed effects model, I estimate the productivity change of the average worker in response to increases in an employer-set base wage. Results support the theoretical predictions and indicate that a three percent increase in the wage floor causes the average worker to decrease productivity by seven percent. In the second chapter, I use the same data on worker productivity to explore the relationship between a worker's speed and the quality of the output she delivers. The link between speed and quality is of direct financial interest to employers and contributes to the understanding of effects from productivity-enhancing policies in the workplace. Using a naive OLS regression, I find a negative and significant relationship between speed and quality. I then separate speed into a worker's average seasonal speed and within-day shocks to her speed. I find that the link between speed and quality is driven by shocks to speed, rather than a worker's average speed. In particular, I find that when a worker works ten percent faster than her average, the quality of her output, measured as the percent of strawberries delivered without any defects, is 0.4 percentage points lower. In light of the strong correlation between speed shocks and quality, I use an IV approach to elicit causal estimates of the effect of speed on quality through exogenous shocks to speed. I find that a ten percent increase in a worker's speed, induced by an increase in the piece rate, causes the quality of her output to decrease by four percentage points. These findings have important implications for employers in terms of optimal contract structure and monitoring. Further, the analysis presents novel evidence on worker behavior that makes significant contributions to the field of labor economics. Namely, while a large body of literature has examined the productivity-effects of various workplace policies, this is the first to document the negative externalities these impose on quality.The third chapter of my dissertation uses nationally representative data from the National Agricultural Workers Survey to examine the labor supply determinants of U.S. crop workers. In this paper, I present trends in the demographic profile of the U.S. agricultural workforce, I demonstrate the link between intensive-margin labor supply and the changing demographic characteristics, and I examine the potential of various employer policies for increasing intensive-margin labor supply. I find statistically significant differences in labor supply across several key demographic characteristics: citizenship status, age, parental status, and gender. I find that native-born citizens work fewer hours per week and fewer weeks per year than both documented and undocumented immigrant workers. I find that middle-aged workers (aged 25-44) work more hours per week than younger or older workers, but older workers (aged 45 and up) work more weeks each year. I find that parents work significantly more weeks per year than non-parents but work a similar number of hours. Males work significantly more hours and weeks than females. I additionally show causal evidence on the effects of various employer policies on intensive-margin labor supply. Among offering higher wages, health benefits, or pay bonuses, I find that bonuses are the only employer policy that statistically significantly increase worker labor supply. I find that offering a bonus causes the average worker to increase weekly hours of labor by ten percent and to increase annual weeks working in agriculture by 6.5 weeks. My findings imply that the way in which the the agricultural workforce is aging will cause the hours and weeks of labor provided by employed farmworkers to increase, while the changes in gender and family composition will cause labor supply to decrease. Further, my findings suggest that an effective employer option for increasing both hours and weeks of work in agriculture is to offer workers bonuses. These findings bear importance for employers, academics, and policy makers seeking to better understand the US agricultural workforce.
This dissertation examines determinants of worker productivity, labor market outcomes, and population health. The first chapter, previously published in the Journal of Public Economics, examines the impacts of cash assistance on refugee labor market outcomes. I exploit variation across states and over time in the generosity of cash assistance available to refugees upon arrival in the U.S. and study the impacts on wages and employment. I argue that cash assistance is randomly assigned to refugees conditional on characteristics such as education and country of origin, as refugee placement is decided by a committee that does not meet with the refugees or learn their preferences. I find that refugees resettled with more generous cash assistance go on to earn higher wages, with no significant change in the probability of employment. The effects are largest for highly-educated refugees. The second chapter examines the impact of temperature on the productivity and job performance of outdoor workers in developing countries. I overcome data challenges with studying individual-level productivity by studying household survey interviewers as workers. Using data from Demographic and Health Survey interviewers in 46 countries, I find that interviewers complete fewer interviews per hour worked on hot and humid days, driven by an increase in working hours. I also find evidence that suggests that workers allocate their effort towards tasks that are more easily observed by supervisors on hot days. The third chapter, previously published in Social Justice Research and co-authored with Diane Coffey and Dean Spears, examines the role of social inequality in population health outcomes in India, focusing on the case of casteism and child height in India. We describe evidence from the India Human Development Survey showing that children in villages with more strongly casteist attitudes are shorter on average, an association that is statistically explained by the association between casteism and the prevalence of open defecation
Technology, Growth, and the Labor Market brings together research by economists from academia and the Federal Reserve System. The first section of the volume includes discussions by monetary policymakers with firsthand experience in determining how technology affects productivity, inequality, and macroeconomic growth. Papers in the second section discuss the sources of the surge in labor productivity growth during the latter half of the 1990s and present forecasts of labor productivity growth rates during the next few years. In the third section, the papers focus on the role of technological advances in changes in earnings inequality in the labor market. The authors examine whether inequality should be viewed as a causal result of skill-biased technological change or whether there is a missing link - or perhaps no link - between changes in technology and changes in wage inequality. The final section explores the relationships between computer investment, worker skills, human resource practices, and productivity at the industry and firm levels.
This book presents a set of papers from the leading edge of current research on productivity analysis. The focus is on alternative forms of measurement, methods, and their implications. The book begins with a chapter by V. Corbo and J. de Melo comparing the effects of using different production frontier models for measuring technical efficiency when using census data. The second chapter (by H. Pesaran and R. Tarling) is a detailed analysi·s of measurement of labor and its variations over time. The next two chapters concern the measurement of capital. The first of these is written by M. F. Mohr; the second is by B. M. Fraumeni and D. W. Jorgenson. The final chapter is by I. B. Kravis, A. W. Heston, and R. Summers and concerns the behavior of productivity and service prices. Decisions for improving productivity rely upon explicit as well as implicit assumptions on how productivity is related to a variety of factors. Determining the right relationships hinges on how these factors are measured and how the models are set. This is why better understanding of measurement issues and behavior of variables related to productivity can lead more effective policies. We plan to continue in this series to present the current research of major different schools of thought in the field.
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The book focuses on Indonesia's most pressing labor market challenges and associated policy options to achieve higher and more inclusive economic growth. The challenges consist of creating jobs for and the skills in a youthful and increasingly better educated workforce, and raising the productivity of less-educated workers to meet the demands of the digital age. The book deals with a range of interrelated topics---the changing supply and demand for labor in relation to the shift of workers out of agriculture; urbanization and the growth of megacities; raising the quality of schooling for new jobs in the digital economy; and labor market policies to improve both labor standards and productivity.
This paper studies the main determinants of total factor productivity (TFP) growth using principal component analysis and a dynamic panel data model and, through a case study, explores key areas where accelerated reforms in the Maghreb countries would boost TFP gains. The results reveal that reforms targeted at attracting foreign direct investment and rationalizing government size, shifting resources from low-productivity sectors to higher ones, and encouraging women to enter the work force, could accelerate TFP gains. Equally important are reforms aimed at strengthening human capital, increasing the volume of trade, and improving the business environment.
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