Financial markets are down, unemployment remains high, and housing sales have hit historic lows. Lurking in the background is anxiety that prices will collapse in a deflationary spiral. Are there any tools left for senior economic policymakers that can bring relief? Temple economist William Dunkelberg said there was little the Fed can do now because consumers were tapped out. His survey of small businesses shows that capital spending is at a 35-year low and that most firms plan to cut inventories. "I don't see how lowering interest rates will do much good," said Dunkelberg, who advocates cutting payroll taxes. "There already is so much liquidity in the system right now."