Stephen J. Rose sees reasons for hope about the economy.

If you look at the American capitalism since World War II, there are ample grounds for optimism. The U.S. economy has experienced almost continuous growth, punctuated by infrequent recessions, from which we have emerged stronger than ever. But the pessimists insist that this recession is different. Here, let me review some of their arguments, and why they are wrong.

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First, the upturn in private investment. Declines in investment during recessions are much larger than any other component of the economy. From start of recession through June, 2009, real private investment spending was down 31 percent; since then it is up 16 percent.

Secondly, the rise in inventories. Inventories are very responsive to the business downturns. In 2008 and 2009, inventories fell by nearly $150 billion. In 2010, inventories are rising. Third, business confidence. The latest poll of business owners shows more companies planning to invest now than at any time since the onset of the recession. And fourth, finally, by most accounts, consumer confidence is rising. A survey of the affluent (in households with incomes greater than $90,000) shows a rising number planning on increasing their investments and consumption.)