The Occupations and Human Capital of U.S. Immigrants

This paper estimates the multi-dimensional human capital endowments of immigrants by characterizing their occupational decisions. This approach allows for estimation of physical skill and cognitive ability endowments, which are difficult to measure directly. Estimation implies that immigrants as a whole are abundant in cognitive ability and scarce in experience/training and communication skills. Counterfactual estimates of the wage impacts of immigration are skewed: the largest gain from preventing immigration is 3.2% higher wages, but the largest loss is 0.3% lower wages. Crowding of immigrants into select occupations plays a minor role in explaining these impacts; occupations’ skill attributes explain the bulk.Immigration; occupations; wages

Student Abilities During the Expansion of U.S. Education, 1950-2000

Since 1950, U.S. educational attainment has increased substantially. While the median student in 1950 dropped out of high school, the median student today attends some college. In an environment with ability heterogeneity and positive sorting between ability and school tenure, the expansion of education implies a decrease in the average ability of students conditional on school attainment. Using a calibrated model of school choice under ability heterogeneity, we investigate the quantitative impact of rising attainment on ability and measured wages. Our findings suggest that the decline in average ability depressed wages conditional on schooling by 31-58 percentage points. We also find that the entire rise in the college wage premium since 1950 can be attributed to the rising mean ability of college graduates relative to high school graduates.Education; ability; skill premium

Families as Roommates: Changes in U.S. Household Size from 1850 to 2000

The size of the average American household has fallen dramatically -from six in 1850 to three in 2000. To explain this decline we model households as collections of roommates who share the costs of household public goods. If private goods are more income elastic than public goods, as we document in the paper, an increase in income endogenously leads to smaller households. We calibrate the model to match data from 2000. Changing incomes to their 1850 levels, we find that our mechanism can explain 37 percent of the observed reduction in the number of adults per household and 16 percent of the reduction in the number of children.Household size, living arrangements, roommates, economies of scale, household public goods, fertility decline.

The Occupations and Human Capital of U.S. Immigrants

This paper estimates the multi-dimensional human capital endowments of immigrants by characterizing their occupational decisions. This approach allows for estimation of physical skill and cognitive ability endowments, which are difficult to measure directly. Estimation implies that immigrants as a whole are abundant in cognitive ability and scarce in experience/training and communication skills. Counterfactual estimates of the wage impacts of immigration are skewed: the largest gain from preventing immigration is 3.2% higher wages, but the largest loss is 0.3% lower wages. Crowding of immigrants into select occupations plays a minor role in explaining these impacts; occupations’ skill attributes explain the bulk.Human Capital, Migration.

Estimating Physical Capital and Land for States and Sectors of the United States, 1850-2000

This paper introduces new estimates of physical capital and land for the states of the United States covering up to 150 years, from 1850{2000. The estimates of physical capital are decomposed into estimates for agriculture, manufacturing, and a residual sector, while the estimates of land are for agriculture only. The paper describes the data sources and methodology used to generate the estimates. It provides sensitivity analysis when alternative choices are possible and comparison to alternative bench-marks when available.state physical capital, state land, farming, land, non-manufacturing, non-farming

The widening wage gap between college and high school graduates is down to the growing difference in their ability and test scores

The past century has seen a massive expansion of education in the U.S, with the vast majority now graduating from high school and more than a quarter from college. At the same time, the wage gap between college and high school graduates has grown from 35 to 50 percent. By looking at the results of standardized test scores from two dozen 20th century studies, Todd Schoellman and Lutz Hendricks find that the expansion of education has led to a decline in mean test scores of high school graduates but not college graduates. The change in mean test scores explains why wages for high school workers have grown more slowly than the wages for college workers, and thus why the wage gap between the two groups has grown

The Occupations and Human Capital of U.S. Immigrants

This paper estimates the multi-dimensional human capital endowments of immigrants by characterizing their occupational decisions. This approach allows for estimation of physical skill and cognitive ability endowments, which are difficult to measure directly. Estimation implies that immigrants as a whole are abundant in cognitive ability and scarce in experience/training and communication skills. Counterfactual estimates of the wage impacts of immigration are skewed: the largest gain from preventing immigration is 3.2% higher wages, but the largest loss is 0.3% lower wages. Crowding of immigrants into select occupations plays a minor role in explaining these impacts; occupations’ skill attributes explain the bulk

Labor Market Dynamics and Development

We build a dataset of harmonized rotating panel labor force surveys covering 42 countries across a wide range of development and document three new empirical findings on labor market dynamics. First, labor market flows (job-finding rates, employment-exit rates, and job-to-job transition rates) are two to three times higher in the poorest as compared with the richest countries. Second, employment hazards in poorer countries decline more sharply with tenure; much of their high turnover can be attributed to high separation rates among workers with low tenure. Third, wage-tenure profiles are much steeper in poorer countries, despite the fact that wage-experience profiles are flatter. We show that these facts are consistent with theories with endogenous separation, particularly job ladder and learning models. We disaggregate our results and investigate possible driving forces that may explain why separation operates different in rich and poor countries

The Causes and Consequences of Cross-Country Differences in Schooling Attainment

This paper uses labor market evidence to quantify the importance of quality-adjusted schooling differences in accounting for cross-country income differences. I model labor markets that are consistent with cross-country data on schooling attainment, education quality, and the average returns to schooling of a country’s emigrants and its non-migrants. The model suggests that the Mincerian returns to schooling of immigrants to the United States measure the education qualities of their source countries. Measured this way, quality differences across countries are large, and the calibrated model shows that schooling accounts for a factor of 5 of the income difference between the U.S. and the poorest countries. The evidence suggests that immigrants to the U.S. are positively selected members of their source country, and that immigrants from developing countries are more selected than those from developed countries. Then the low education quality measured in the sample actually overestimates the education quality of the average non-migrant, particularly for developing countries. Two methods of controlling for selection among immigrants thus predict a moderately larger role for schooling, between a factor of 6.5 and 7.9

Families as Roommates: Changes in U.S. Household Size from 1850 to 2000

Living arrangements have changed enormously over the last two centuries. While the average American today lives in a household of only three people, in 1850 household size was twice that figure. Further, both the number of children and the number of adults in a household have fallen dramatically. We develop a simple theory of household size where living with others is beneficial solely because the costs of household public goods can be shared. In other words, we abstract from intra-family relations and focus on households as collections of roommates. The model's mechanism is that rising income leads to a falling expenditure share on household public goods, which endogenously makes household formation less beneficial and privacy more attractive. To assess the magnitude of this mechanism, we first calibrate the model to match the relationship between household size, consumption patterns, and income in the cross-section at the end of the 20th century. We then project the model back to 1850 by changing income. We find that our proposed mechanism can account for 37 percent of the decline in the number of adults in a household between 1850 and 2000, and for 16 percent of the decline in the number of children.