NEW YORK CITY: Another day, another record high for the Dow, which for the first time Thursday finished above 7,000. Just four months after topping 6,000, the 30-stock average finished the day at 7,022.44, up 60.81 points. The good news spilled over into other markets as well: The Standard & Poor's 500 and the New York Stock Exchange composite index both set new records. Can anything stop this expansion? The economy is continues to grow at a moderate rate, keeping inflation and interest rates low. As a result, investors continue to pour money into mutual funds: Stock and bond funds received an additional $27 billion last month. The six-year bull market, which has seen the Dow rise from around 2,400 in 1990, shows little sign of letting up. All that good news has investors confident of still higher markets, which is exactly what worries some analysts. "Unbridled greed and lust," said Morgan Stanley chief economist Stephen Roach. "There is a conviction that we are in a perfect world, irrespective of any growth rate, where we will never again have any problem with inflation, Fed policy and interest rates."