Arbitrage proof has since been widely used throughout finance and economics.

The breakdown of the black community in order to maintain slavery began with the breakdown of the black family. Men and women were not legally allowed to get married because you couldn't have that kind of love. It might get in the way of the economics of slavery. Your children could be taken from you and literally sold down the river.

In economics hope and faith coexist with great scientific pretension and also a deep desire for respectability.

But beginners to the World Economics Forum have to understand there is no single Davos experience and there is no single Davos community either. There are numerous tribes who interact only at a minimal level.

Economists treat economics as if it is a pure science divorced from the facts of life. The result of this false accountancy is a willful confusion under cover of which industry wreaks its havoc scot-free and ignores the environmental cost.

Now that virtually every career is an option for ambitious girls it can no longer be considered regressive or reactionary to reintroduce discussion of marriage and motherhood to primary education. We certainly do not want to return to the simplistic duality of home economics classes for girls and wood shop for boys.

It turns out that advancing equal opportunity and economic empowerment is both morally right and good economics because discrimination poverty and ignorance restrict growth while investments in education infrastructure and scientific and technological research increase it creating more good jobs and new wealth for all of us.

Survival in the cool economics of biology means simply the persistence of one's own genes in the generations to follow.

Many individuals are doing what they can. But real success can only come if there is a change in our societies and in our economics and in our politics.

I was an economics major in college and every summer after school I would drive my car from California from Claremont men's college at the time to New York. And I worked on Wall Street.