This decade is strewn with examples of bright people who thought they built a better mousetrap that could consistently extract abnormal returns from the financial markets. Some succeed for a time. But while there may occasionally be mis-configurations among market prices that allow abnormal returns, they do not persist.

The United States can pay any debt it has because we can always print money to do that. So there is zero probability of default.

And whatever their publicized angst over Saddam Hussein's 'weapons of mass destruction,' American and British authorities were also concerned about violence in an area that harbors a resource indispensable for the functioning of the word economy. I am saddened that it is politically inconvenient to acknowledge what everyone knows: the Iraq war is largely about oil.

Skilled shortages in America exist because we are shielding our skilled labor force from world competition. [Visa quotas] have been substituted for the wage pricing mechanism. In the process we have created [a] privileged elite whose incomes are being supported at non-competitively high levels by immigration quotas on skilled professionals. Eliminating such restrictions would reduce at least some of the income inequality.

The need for values is inbred. Their content is not.

A decline in the national housing price level would need to be substantial to trigger a significant rise in foreclosures, because the vast majority of homeowners have built up substantial equity in their homes despite large mortgage-market financed withdrawals of home equity in recent years.

I was a good amateur but only an average professional. I soon realized that there was a limit to how far I could rise in the music business, so I left the band and enrolled at New York University.