Macroeconomists acknowledge the contribution of human capital to economic growth, but their empirical studies define human capital solely in terms of schooling. In this paper, we extend production function models of economic growth to account for two additional variables that microeconomists...

We examine the association between nonmarital childbearing and the subsequent likelihood of first marriage and document a negative association between these variables -- controlling for a variety of potentially confounding influences -- in several large survey data sets for the United States. We...

The share of the population aged 60 and over is projected to increase in nearly every country in the world during 2005-2050. Population ageing will tend to lower both labor-force participation and savings rates, thereby raising concerns about a future slowing of economic growth. Our calculations...

For decades, economists and social thinkers have debated the influence of population change on economic growth. Three alternative positions define this debate: that population growth restricts, promotes, or is independent of economic growth. Proponents of each explanation can find evidence to...

We discuss estimation of the model Y[sub i] = X[sub i]b[sub y] + e[sub Yi] and T[sub i] =X[sub i]b[sub T] + e[sub Ti] when data on the continuous dependent variable Y and on the independent variables X are observed if the "truncation variable" T 0 and when T is latent. This case is distinct...

Globalization of scientific and technological knowledge has reduced the US share of world scientific activity; increased the foreign-born proportion of scientists and engineers in US universities and in the US labor market; and led to greater US scientific collaborations with other countries....

This study examines the ethnic identity of authors in over 2.5 million scientific papers written by US-based authors from 1985 to 2008, a period in which the frequency of English and European names among authors fell relative to the frequency of names from China and other developing countries....

This paper links data on establishments and individuals to analyze the role of establishments in the increase in inequality that has become a central topic in economic analysis and policy debate. It decomposes changes in the variance of ln earnings among individuals into the part due to changes...

The Great Recession tested the ability of the "great U.S. jobs machine" to limit the severity of unemployment in a major economic downturn and to restore full employment quickly afterward. In the crisis the American labor market failed to live up to expectations. The level and duration of...

China's new Labor Contract Law took effect on January 2008 and required firms to give migrant workers written contracts, strengthened labor protections for workers and contained penalties for firms that did not follow the labor code. This paper uses survey data of migrant workers in the Pearl...