Following are selected comments from Federal Reserve Chairman Alan Greenspan's testimony on U.S. monetary policy to the Senate Banking Committee on Tuesday:

Recent Economic Developments

"Economic developments in the United States have generally been quite favorable in 2004, lending increasing support to the view that the expansion is self-sustaining. Not only has economic activity quickened, but the expansion has become more broad-based and has produced notable gains in employment.

"The evident strengthening in demand that underlies this improved performance doubtless has been a factor contributing to the rise in inflation this year.

"But inflation also seems to have been boosted by transitory factors such as the surge in energy prices. Those higher prices, by eroding households' disposable income, have accounted for at least some of the observed softness in consumer spending of late, a softness which should prove short-lived."

Inflation, Profits

"...businesses are limited in the degree to which they can raise margins by raising prices. An increase in margins should affect mainly the level of prices associated with any given level of unit costs but, by itself, should not prompt a sustained pickup in the rate of inflation going forward.

"In a market economy, any tendency for profit margins to continue to rise is countered largely by the entry of new competitors willing to undercut prices and by increased labor costs as more firms attempt to exploit the opportunity for outsized profits by expanding employment and output. That increase in competitive pressure, as history has amply demonstrated, with time, returns markups to more normal levels."

"...For the moment, the modest upward path of unit labor costs does not appear to threaten longer-term price stability, especially if current exceptionally high profit margins begin to come under more intense competitive pressures at home and from abroad. Although some signs of protectionist sentiment have emerged, there is little evidence that the price-containing forces of ever-widening global competition have ebbed. In addition, the economy is not yet operating at its productive capacity, which should help to contain cost pressures. But we cannot be certain that this benign environment will persist and that there are not more deep-seated forces emerging as a consequence of prolonged monetary accommodation. Accordingly, in assessing the appropriateness of the stance of policy, the Federal Reserve will pay close attention to incoming data, especially on costs and prices."

Pace of Tightening

"With the growth of aggregate demand looking more sustainable and with employment expanding broadly, the considerable monetary accommodation put in place starting in 2001 is becoming increasingly unnecessary. In May, the FOMC believed that policy accommodation needed to be removed and that removal could be accomplished at a pace that is likely to be measured. At our meeting last month, the FOMC raised the target federal funds rate from 1 percent to 1-1/4 percent, and the discount rate was raised commensurately. Policymakers reiterated that, based on our current outlook, the removal of accommodation would likely proceed at a measured pace.

"But in light of the considerable uncertainty surrounding the anticipated evolution of price pressures, the FOMC emphasized that it will respond to changes in economic prospects as needed to fulfill its obligation to maintain price stability. If economic developments are such that monetary policy neutrality can be restored at a measured pace, a relatively smooth adjustment of businesses and households to a more typical level of interest rates seems likely.

"Even if economic developments dictate that the stance of policy must be adjusted in a less gradual manner to ensure price stability, our economy appears to have prepared itself for a more dynamic adjustment of interest rates.

"Of course, considerably more uncertainty and hence risk surrounds the behavior of the economy with a more rapid tightening of monetary policy than is the case when tightening is more measured. In either scenario, individual instances of financial strain cannot be ruled out."