Gary Becker — American Economist born on December 02, 1930,

Gary Stanley Becker was an American economist. He was professor of economics and sociology at the University of Chicago and at the Booth School of Business. He made important contributions to the family economics branch of economics. Neoclassical analysis of family within the family economics is also called new home economics... (wikipedia)

My work on human capital began with an effort to calculate both private and social rates of return to men, women, blacks, and other groups from investments in different levels of education.
I was not sympathetic to the assumption that criminals had radically different motivations from everyone else.
Still, intuitive assumptions about behavior is only the starting point of systematic analysis, for alone they do not yield many interesting implications.
Why in almost all societies have married women specialized in bearing and rearing children and in certain agricultural activities, whereas married men have done most of the fighting and market work?
The Treatise tries to analyze not only modern Western families, but also those in other cultures and the changes in family structure during the past several centuries.