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Working Paper
Cities and the growth of wages among young workers: evidence from the NLSY
Human capital-based theories of cities suggest that large, economically diverse urban agglomerations increase worker productivity by increasing the rate at which individuals acquire skills. One largely unexplored implication of this theory is that workers in big cities should see faster growth in their earnings over time than comparable workers in smaller markets. This paper examines this implication using data on a sample of young male workers drawn from the National Longitudinal Survey of Youth 1979 Cohort. The results suggest that earnings growth does tend to be faster in large, ...
Journal Article
Urban decentralization and income inequality: is sprawl associated with rising income segregation across neighborhoods?
Existing research shows an inverse relationship between urban density and the degree of income inequality within metropolitan areas; this information suggests that as urban areas spread out, they become increasingly segregated by income. This paper examines this hypothesis using data covering more than 165,000 block groups within 359 U.S. metropolitan areas for the years 1980, 1990, and 2000. The findings indicate that income inequality-defined by the variance of the log household income distribution-does indeed rise significantly as urban density declines. This increase, however, is ...
Journal Article
Human capital growth in a cross section of U.S. metropolitan areas
Growth of human capital, defined as the change in the fraction of a metropolitan area's labor force with a bachelor's degree, is typically viewed as generating a number of desirable outcomes, including economic growth. Yet, in spite of its importance, few empirical studies have explored why some economies accumulate more human capital than others. This paper attempts to do so using a sample of more than 200 metropolitan areas in the United States over the years 1980, 1990, and 2000. The results reveal two consistently significant correlates of human capital growth: population and the existing ...
Journal Article
Changing trends in the labor force: a survey
The composition of the American workforce has changed dramatically over the past half century as a result of both the emergence of married women as a substantial component of the labor force and an increase in the number of minority workers. The aging of the population has contributed to this change as well. In this paper, the authors review the evidence of changing labor force participation rates, estimate the trends in labor force participation over the past 50 years, and find that aggregate participation has stabilized after a period of persistent increases. Moreover, they examine the ...
Working Paper
The economic performance of cities: a Markov-switching approach
This paper examines the determinants of employment growth in metro areas. To obtain growth rates, we use a Markov-switching model that separates a city?s growth path into two distinct phases (high and low), each with its own growth rate. The simple average growth rate over some period is, therefore, the weighted average of the high-phase and low-phase growth rates, with the weight being the frequency of the two phases. We estimate the effects of a variety of factors separately for the high-phase and low-phase growth rates, along with the frequency of the low phase. We find that growth in the ...
Working Paper
Productivity and the geographic concentration of industry: the role of plant scale
A large body of research has established a positive connection between an industry's productivity and the magnitude of its presence within locally defined geographic areas. This paper examines the extent to which this relationship can be explained by a micro-level underpinning commonly associated with productivity: establishment scale. Looking at data on two-digit manufacturing across a sample of U.S. metropolitan areas, I find two primary results. First, average plant size - defined in terms of numbers of workers - increases substantially as an industry's employment in a metropolitan area ...
Journal Article
Evidence on wage inequality, worker education, and technology
The rise in U.S. wage inequality over the past two decades is commonly associated with an increase in the use of "skill-biased" technologies (e.g., computer equipment) in the workplace, yet relatively few studies have attempted to measure the direct link between the two. This paper explores the relationship among inequality, worker education levels, and workplace computer usage using a sample of 230 U.S. industries between 1983 and 2002. The results generate two primary conclusions: First, this rising inequality in the United States has been caused predominantly by increasing wage ...
Journal Article
Neighborhoods that don't work
Unemployment is becoming more concentrated. Neighborhoods that had high unemployment in 1980 had even higher unemployment 20 years later. What are the possible reasons-and solutions-for this trend?
Working Paper
Urban decentralization and income inequality: Is sprawl associated with rising income segregation across neighborhoods?
Existing research has found an inverse relationship between urban density and the degree of income inequality within metropolitan areas, suggesting that, as cities spread out, they become increasingly segregated by income. This paper examines this hypothesis using data covering more than 160000 block groups within 359 US metropolitan areas over the years 1980, 1990, and 2000. The findings indicate that income inequality - defined by the variance of the log household income distribution - does indeed rise significantly as urban density declines. This increase, however, is associated with ...