Amid bleak economic growth and unemployment, the stock market swoon, and the downgrade of the credit rating of the federal government, the fear of a dreaded double-dip recession--or even of a 21st-century Great Depression--has been taking hold. But a rough consensus among economists may be starting to emerge. According to this line of thinking, although a double-dip is certainly possible, a long period of stagnation--that is, frustratingly low growth--is more likely, much like what we've seen since the recession officially ended two years ago. That would be preferable to another recession, of course. But it would mean that ordinary Americans--especially...