Afraid Of Market Heights? Don't Climb Down Now

The signs are still heady: Low inflation worldwide, strong profits, and rising productivity

Mountain climbers often describe the intoxicating rush they experience from scaling ever-higher peaks. They're also mindful that the lack of oxygen at high altitudes can make them ill and cloud their judgment so much they may not know when it's time to turn back. The Dow Jones industrial average, at 7289, has risen more than 800 points so far this year and has nearly doubled since late 1994. Still, millions of investors are pouring billions into stocks. Are they suffering from altitude sickness?

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