The global economy, however, is like a marathon runner who ran too hard and hurt himself. This runner has been injected with some industrial-quality steroids, and away he goes. As the steroids kick in, his pace accelerates, as if the injury never happened. He's up and running, so he must be OK, judging from his speed and his progress.
We may think the runner has recovered from his injury, but steroids have their costs. They exaggerate true performance and mask pain, and the longer an athlete takes them, the less effective they are. Addiction is likely.
The world's economy suffered severe injuries last year, and to keep it going governments have injected massive doses of economic steroids called stimulus. It's everywhere, but the U.S. is one of the biggest users.
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