The aim of promoting low down payments is to push prices back up so that fewer houses are going to be in negative equity and fewer people are going to walk away from the mortgages. That will save the from taking a loss on their junk mortgage loans.

Textbooks don't teach people how to avoid paying any income tax. But that's what an army of tax lawyers and corporate tax accountants do.

Almost all of the demand for oil that suddenly pushed prices up was speculative demand. People began to speculate not only in stocks and bonds and real estate, but also in commodities. The market went up for old tankers, which were used simply to store oil in. A lot of the oil was simply being stored for trading, not used.

One basic myth is that rich people get wealthy by earning income. But that's not how most get rich. Most of the gains of the rich people since 1945 have been "capital gains".

The price decline is a result of having to pay debts. That drains income from the circular flow between production and consumption - that is, between what people are paid when they go to work, and the things that they buy.

Since 2008 you've had the largest bond market rally in history, as the Federal Reserve flooded the economy with quantitative easing to drive down interest rates. Driving down the interest rates creates a boom in the stock market, and also the real estate market. The resulting capital gains not treated as income.

Everybody would be better off if they could buy housing for only, let's say, a carrying charge of one-quarter of their income. That used to be the case 50 years ago. Buyers had to save up and make a higher down payment, giving them more equity - perhaps 25 or 30 percent. But today, banks are creating enough credit to bid up housing prices again.