The most recent findings on income inequality come from the New York Times' analysis of a November, 2006, Internal Revenue Service report on income in 2004. Although overall income has grown by 27% since 1979, 33% of the gains went to the top 1%. Meanwhile, the bottom 60% were making less: about 95 cents for each dollar they made in 1979. The next 20% - those between the 60th and 80th rungs of the income ladder -- made $1.02 for each dollar they earned in 1979. Furthermore, the Times author concludes that only the top 5% made significant gains ($1.53 for each 1979 dollar). Most amazing of all, the top 0.1% -- that's one-tenth of one percent -- had more combined pre-tax income than the poorest 120 million people (Johnston, 2006).

A key factor behind the high concentration of income, and the likely reason that the concentration has been increasing, can be seen by examining the distribution of what is called "capital income": income from capital gains, dividends, interest, and rents. In 2003, just 1% of all households -- those with after-tax incomes averaging $701,500 -- received 57.5% of all capital income, up from 40% in the early 1990s. On the other hand, the bottom 80% received only 12.6% of capital income, down by nearly half since 1983, when the bottom 80% received 23.5%.

The ongoing meltdown in the sub-prime mortgage market would not matter, except for those directly involved, except that it marks the unraveling of Ponzi finance units that, on the margin, were the plankton of the bubbling property sea of recent years. As the bubble was forming, riding on first-time homebuyers with first-time access to credit on un-creditworthy terms, and first-time speculators riding the same with visions of bigger first-time fools to take them out, all looked well. But as Minsky warned, stability is ultimately destabilizing, as those who require perpetual asset price appreciation to make book are forced to sell to make book. Such is reality presently in the U.S. residential property market, which has flipped from a sellers’ market on the wings of buyers with exotic mortgages to a buyers’ market of only the creditworthy.

Which means that the bigger fish in the domestic and global economic sea are going to be living on leaner diets. It also means that any given level of central-bank enforced short-term policy rates will become ever more restrictive with the passage of time. That is nowhere more the case than in the United States, where mortgage originators’ orgy of Ponzi finance stifled the Fed’s ability to temper irrational exuberance in housing with hikes in the Fed funds rate.

Barclays faces being caught up in the US sub-prime lending rout as it emerged that it has a $1 billion (£520 million) line of credit to one of the biggest and most tarnished players in the industry.

Barclays has the exposure to New Century Financial Corporation, which late on Friday said that it was in danger of breaching loan covenants. Its shares crashed by 63 per cent to $5.48 yesterday — a tenth of their value two years ago.