We analyze time use studies to describe how people allocate their time as they age, especially among paid work, unpaid work, leisure, and personal care. We emphasize differences in time allocation between older (i.e., those aged 65+) and younger people; between developed and developing countries;...

I draw systematic comparisons across 109 data files and 132 countries of the relationship between well-being, variously defined, and age. I produce 444 significant country estimates with controls, so these are ceteris paribus effects, and find evidence of a well-being U-shape in age in one...

Getting science policy right is a core objective of government that bears on scientific advance, economic growth, health, and longevity. Yet the process of science is changing. As science advances and knowledge accumulates, ensuing generations of innovators spend longer in training and become...

John Ford and Alfred Hitchcock were experimental filmmakers: both believed images were more important to movies than words, and considered movies a form of entertainment. Their styles developed gradually over long careers, and both made the films that are generally considered their greatest...

Recent research has shown that all the arts have had important practitioners of two different types -- conceptual innovators who make their greatest contributions early in their careers, and experimental innovators who produce their greatest work later in their lives. This contradicts a...

A survey of textbooks reveals that Le Corbusier was the greatest architect of the twentieth century, followed by Frank Lloyd Wright and Ludwig Mies van der Rohe. The same evidence shows that the greatest architects alive today are Frank Gehry and Renzo Piano. Scholars have long been aware of the...

We use a micro dataset that collects information across individuals, countries, and time to investigate the determinants of entrepreneurial activity in thirty-seven developed and developing nations. We focus both on individual characteristics and on countries' regulatory differences. We show...

During 2006, the Gallup Organization conducted a World Poll that used an identical questionnaire for national samples of adults from 132 countries. I analyze the data on life satisfaction (happiness) and on health satisfaction and look at their relationships with national income, age, and...

This paper considers not only when in their careers the greatest artists of the twentieth century made their greatest discoveries, but also how quickly they made them. The results underscore the dominant position of Picasso and Cubism in twentieth-century art: Picasso alone accounts for the two...

Great achievements in knowledge are produced by older innovators today than they were a century ago. Using data on Nobel Prize winners and great inventors, I find that the age at which noted innovations are produced has increased by approximately 6 years over the 20th Century. This trend is...