Despite a slightly worse-than-expected report on first-quarter growth, economists are generally still clinging to hopes for an economic recovery in the second half of the year. There are several reasons for optimism. Monetary and fiscal policies are attractive. The housing market is strong. And corporate activity is showing signs it might pick up. "The adjustment to excess investment in the late '90s is progressing nicely," said Mike Moran, an economist at Daiwa Securities. "We are seeing spending on high-tech equipment increasing." In the first quarter, GDP growth was revised a half-percentage point lower to 1.4%, reflecting less inventory investment and more imports than predicted a month ago. Inventories grew at a $4.8 billion rate, almost a third less than the $13.2 billion previously forecast. They are at historically lean levels. "Because inventories are so lean, we are going to get a bigger kick than previously thought from a pickup in business investment," said Moran, who expects 3.5% GDP growth in the second half. Moran's thesis would be challenged by further prudence by corporations. "It takes a while for business executives to get up the confidence to invest in capital equipment. They are behaving very cautiously. That cautiousness might fade more slowly than I expect." In a positive sign, new orders for durable goods, excluding transportation, were up 0.2% in May. Still, total orders for manufactured goods fell by 0.3% to $168.3 billion, their lowest level in a year. "We still have problems in terms of overcapacity," said John Shin, an economist at Lehman Brothers, although he is also forecasting 3.5% GDP growth in the second half of the year. In Shin's view, monetary policy is going to be an important factor contributing to growth. On Wednesday, the Federal Reserve lowered interest rates by a quarter-point to 1%, their lowest level since 1958, saying that the economy has not yet exhibited sustainable growth.