The Federal Open Market Committee said it expects a slower economy to reduce inflationary pressures, signaling that the Fed could being standing pat for a while, economists said. Read the statement.

The Fed is expected to keep rates on hold for now and any signal it will halt for longer would likely be welcomed by investors. But after all three major indexes chalked up healthy gains this week, any post-Fed rally may be short-lived.

"We've had a nice rally recently and the market is looking, on the margin, overextended. So we would think that choppiness...should be expected," said John Forelli, senior vice president and portfolio manager at Independence Investments.

Investors are facing a full week. The Federal Open Market Committee, the Fed's rate-policy setting body, will decide what to do with its key interest rate, which now stands at 5.25%.

Federal Reserve Chairman Ben Bernanke and his team are widely expected to stand pat on rates for the next three meetings.

Fed funds futures traded on the Chicago Board of Trade are showing a 12% chance of a move to 5.5% either next week or at the October meeting, and about 20% for the next three meetings, including a get-together scheduled for Dec. 12.

Benign inflation data released last week seemed to persuade financial markets that the Fed's next move will be to cut overnight interest rates, probably early next year.

But economists Jan Hatzuis and Ethan Harris say the Fed won't cut rates until growth slows significantly. Inflation will have little to do with the decision.

Hatzius, chief U.S. economist for Goldman Sachs, says the first cut will come sooner than many expect, probably in the first quarter of 2007. Why? Because the Fed always acts quickly once the unemployment rate begins to rise.

"If Fed officials aim to avoid recession, they should ease aggressively as soon as the labor market starts to weaken," Hatzius wrote in his weekly note to clients. Since the mid-1960s, every time the unemployment rate has increased by even one-sixth of a percentage point, the Fed has eased, the Goldman economist said.

And Hatzius thinks the labor market is already beginning to weaken. The Fed's threshold to begin cutting is two or three quarters off, he said.

That's a major reason why Goldman is predicting that the Fed will aggressively cut rates from 5.25% to 4% by the end of 2007.

By contrast, Harris, the chief U.S. economist for Lehman Bros., thinks the Fed will raise rates two more times to 5.75%, then hold rates steady for a year or so before the first quarter-point cut to 5.50%, likely in the fourth quarter of 2007.

Why? Because the economy is not slowing enough to force the Fed to cut rates. And because inflation is still accelerating.

"A rate cut today would probably require that [gross domestic product] growth slip toward 1% and core inflation to show clear signs of turning down," Harris wrote in his weekly note.

To forecast Fed actions, many economists use a version of the Taylor Rule, a formula created by economist John Taylor a decade ago that seemed to explain what the Fed has actually done. In the Taylor Rule, the Fed faces an explicit medium-term tradeoff between growth and inflation.

To reduce inflation, the Fed must push growth below trend for an extended period. If trend growth is 3%, it would take a year of growth less than 1.5% to bring the inflation rate from 2.5% back to 2.0%., according to Taylor Rule calculations by Hatzius.

But the Taylor Rule is a simplistic view of the Fed, Hatzius said. The Fed actually is very sensitive to slower growth. Fed policy is "non-linear," he said.

"The U.S. economy historically has had an extremely difficult time sustaining below-trend growth without falling into recession," Hatzius said. A recession has ensued every time the three-month average of the jobless rate has risen by a third of a percentage point, he said.

Harris likely agrees with that analysis, to a point, he just doesn't think the economy is slowing in a meaningful way. "If growth dips below 2% and the unemployment rate starts to trend higher, the Fed may decide to ignore any further pick-up in core inflation," Harris said.

Ironically, the more the financial markets expect a slowdown, the less likely to is, because the recent rally in the stock and bond markets has undercut the Fed's efforts to slow the economy by providing more stimulus. The only financial drag on the economy is the housing market.

"So it boils down to one simple question: Will the housing correction on its own crush the economy?" Harris says. His view is clear. "We find it hard to accept the more dire housing stories." A soft landing is more likely, with housing slowing -- but not stopping -- economic growth,

Housing is the key to Hatzius's forecast as well. "The termites are eating away at the economy's foundations," he said.

The startling drop in the home builders' index and the 20% decline in building permits in the last year point to a 1% drag on GDP from the residential building sector, he said. Moreoever, the drying up of mortgage equity extraction will cut into consumer spending and subtract another 0.5% to 1% from growth, he said. That would bring 3.5% growth down to 1.5% or 2%. And business investment is also seems to decelerating, he said.

"I find it very hard to see how the economy stays at a trend growth rate," Hatzius said. But Harris says, "We are sticking to our core calls: growth remains steady at 2.5%, core inflation creeps up to 3% and the Fed reluctantly hikes twice more."