Global markets are crashing down today. Asia (Hang Seng down 12.7%, Nikkei 225 fell 6.4%) and Europe (Dow Jones Euro Stoxx 50 crumbled by 5.9% and the FTSE 100 index tumbled 5.4%) are collapsing in unison. And in the last year, they have lost 51% of their value -- destroying $29.6 trillion in stock market value. You may have noticed that stockholders are the silent majority of the financial crisis. This is the group of citizens that Richard Nixon tried to mobilize to win elections. And it's the same group that John McCain's advisor, Phil Gramm, talks about when he says Americans are Whiners.

There are plenty of corporations and financial institutions that can afford lobbyists. The clients of lobbyists don't whine -- they get bailouts. As vice chairman of UBS AG (NYSE: UBS), Gramm is one of the lobbyists that the average taxpayer can't afford, so we end up paying to bail out those who can. How much? Commercial Paper (CP) gets $540 billion; Fannie Mae (NYSE: FNM), Freddie Mac (NYSE: FRE), and American International Group (NYSE: AIG) get $322.8 billion; and the top nine banks get $125 billion to pay bonuses (since Hank Paulson did not require them to lend it out).

Even if stockholders could hire lobbyists, it is unlikely that governments would be able to come up with enough cash to reimburse us for the $29.6 trillion we've lost so far -- or for the additional $20 trillion we could lose if things keep going the way they have been. With confidence lost that governments will solve the problem, people are now trying to cut their losses before they get even worse.

That lack of confidence is what will drive global stock markets for the foreseeable future.

Peter Cohan is President of Peter S. Cohan & Associates. He also teaches management at Babson College and edits The Cohan Letter. He owns AIG shares and has no financial interest in the other securities mentioned.

As investors await today's start of earnings season, they should remember that Wall Street's equity analysts blew it in the fourth quarter, overestimating profit by 33.5 percentage points, the biggest miss ever, according to Bloomberg News.

"Merrill Lynch & Co.(NYSE: MER), Bank of America Corp. (NYSE: BAC) and the rest of the securities industry aren't losing credibility because of anything sinister," the story says. "The problem is they didn't get their math right after credit markets froze nine months ago."

I am not terribly optimistic that analysts have improved much in the first quarter. Earnings estimates are probably still way too high. Many, many companies are going to miss their earnings estimates. This will erode Wall Street's credibility even further.

Richard Weiss of City National Bank told Bloomberg that first quarter results will be a "big wake-up" call for some analysts. Some may lose their six- and seven-figure jobs because of it.

The lesson here is for investors to do their own homework. Anyone who doesn't have the time or motivation to do it should either hire an adviser or buy index funds.

These days, you can't take Wall Street's word for anything.

Robert J. Shiller's Irrational Exuberance is the classic book for understanding the stock market bubble of the late 1990s and early 2000s. His contribution to the study of real estate is equally compelling. The House Price Index used to track our real estate market was co-developed by Mr. Shiller -- and is innovative in that it adjusts for the quality of homes involved in transactions.

So given his expertise in bubbles and real estate, he is probably the guy to listen to when it comes to the topic of the real estate bubble.

In a column in this Sunday's New York Times, Shiller gives an interesting possible explanation for a question that hasn't gotten a lot of attention: Why were Alan Greenspan -- and a lot of other presumably intelligent people -- unable to see that real estate bubble for what it was given that, in retrospect, it seems so obvious?

The answer may lie in a psychological phenomenon known as information cascade. Be sure to read Shiller's column for an explanation of how this may have applied to the real estate market. It's fascinating stuff.

And understanding why the bubble wasn't widely detectable is key to understanding why it happened. As Shiller writes, "The failure to recognize the housing bubble is the core reason for the collapsing house of cards we are seeing in financial markets in the United States and around the world. If people do not see any risk, and see only the prospect of outsized investment returns, they will pursue those returns with disregard for the risks."

The Chinese stock market has been on an incredible tear in recent months, despite government efforts to restrict credit and clamp down on aggressive speculation. Since December, the Shenzhen Composite Index has gained more than 57%.

However, if you overlay a graph of the Chinese market on that of the NASDAQ Composite Index from around the time the dot-com bubble was bursting seven or so years ago, it appears to paint a picture of a potential train wreck-in-the-making.

In other words, if things hold true to historical form, the parabolic rise we've seen so far in Chinese shares could be reaching its zenith . . . and then it's all downhill from here.

No doubt such a turnaround could have unsettling implications for markets and economies around the globe.

Michael Panzner is a 25-year veteran of the global stock, bond, and currency markets and the author of Financial Armageddon: Protecting Your Future from Four Impending Catastrophes and The New Laws of the Stock Market Jungle: An Insider's Guide to Successful Investing in a Changing World.