Consumer borrowing fell for the eighth straight month in September. This record-setting streak is due largely to tightening by lenders, unemployment and the conservative preference to pay down debt rather than spend. This widespread fit of fiscal responsibility, economists fret, could prevent a recovery from taking root, since consumer spending is responsible for 70% of the U.S. economy. This conventional thinking, of course, overlooks the fact that an eventual increase in spending that isn't fueled by consumer spending will yield a recovery that's more likely to last.

According to the Federal Reserve, borrowing fell at an annual rate of $14.8 billion in September -- it's biggest drop since July and much larger than the $10 billion predicted by economists. The behavior is exactly what you'd find in people worried about losing their jobs or focused on rebuilding safety funds and investment portfolios. Those who want to borrow are finding banks won't be complicit this time, as they clamp down on lending practices.

The recession is only over if you ask the right people. While some sectors are starting to see the light at the end of the tunnel, consumers remain concerned. It may be tempting to listen to the experts over the average Joe, but the former don't control 70% of the U.S. economy. So, as long as people are worried abou unemployment (which continues to rise), the levels of debt they carry and whether they're at risk of foreclosure, the recession will live on in the hearts of those who write checks and swipe credit cards.

Although short selling -- the practice of selling borrowed shares with the hope of repaying the loan by buying back the shares at a lower price -- goes against the American belief that stocks always go up, I have long been fascinated with it. Short Stories discusses what works, what doesn't, and what some of the leading lights in shorting stocks think about its opportunities and threats. I describe possible short trades and seek your comments and questions for story ideas. I don't offer any investment advice and I don't trade on any of the posts I write.

Alesco Financial (NYSE: AFN) looks like it will have trouble coming up with the money to repay its debts. This Real Estate Investment Trust (REIT) uses borrowed money to buy into the alphabet soup of securities -- such as Collateralized Debt Obligations (CDOs) and Mortgage Backed Securities (MBSs) -- that could cost Wall Street up to $400 billion in write-downs. With 22% of its float sold short, many investors have already figured out that Alesco, at $3.28, is on life support. But it pays a 31 cent a share dividend, for a 9% dividend yield -- 36% if it was annualized (but I doubt Alesco will be able to continue to pay it) -- which those short sellers are willing to pay because they think the stock has further to decline.

The question about whether to sell short this stock revolves around whether Alesco can pay off its $11.2 billion in debt. Here are some factors to consider:

• Debt repayment. In its most recent annual report of March 2007, Alesco said it was on the hook to repay $3.6 billion It owed in less than a year and then nothing in the intervening years and in more than five years it would owe $6.8 billion. If it has already paid off the $3.6 billion it could be OK. But its most recent quarterly report said it had $91 million in cash so if it owes more than $91 million in the next few months, it could be in trouble. And it's already dedicated $19 million of that cash to dividends.