Understanding the economic payoff to human investments is very important from the standpoint both of individuals and of society. Correctly estimating these impacts necessitates having a well-developed idea of the microeconomic determinants of human behavior. Without this, empirical analyses of...

The analyses below compare the career histories and personal characteristics of the executives in the top ranks of the world's largest and most stable business operations, the Fortune 100, between 1980 and 2001. To our knowledge, there have been no prior studies of contemporary changes in the...