"This study examines the variation in educational outcomes across and within countries using the TIMSS mathematics tests. It documents the wide cross-country variation in the level and dispersion of test scores. Countries with the highest test scores are those with the least inequality in...

Foreign national students have come to the United States to study in increasing numbers and participated in some of the most advanced academic research efforts to date, lending enormous brainpower to the development of technological and scientific innovations that benefitted America. The...

Immigrants have historically provided one of America's greatest competitive advantages. They have come to the United States largely to work and have played a major role in the country's recent growth. Between 1990 and 2007, the proportion of immigrants in the U.S. labor force increased from 9.3...

Increased use of robots has roused concern about how robots and other new technologies change the world of work. Using numbers of robots shipped to primarily manufacturing industries as a supply shock to an industry labor market, we estimate that an additional robot reduces employment and wages...

The founders of the United States considered intellectual property worthy of a special place in the Constitution - "To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries." In...

This paper seeks to explain the greater hours worked by Americans compared to Germans in terms of forward-looking labor supply responses to differences in earnings inequality between the countries. We argue that workers choose current hours of work to gain promotions and advance in the...

China's advance to the forefront of scientific research is one of the 21st century's most surprising developments, with implications for a world where knowledge is arguably "the one ring that rules them all." This paper provides new estimates of China's contribution to global science that far...

This paper examines international and domestic collaborations using data from an original survey of corresponding authors and Web of Science data of articles that had at least one US coauthor in the fields of Particle and Field Physics, Nanoscience and Nanotechnology, and Biotechnology and...