Historic price fluctuations are hastening a post-oil transition that many Arab countries were already contemplating. That could foment plenty of unrest, but also some much-needed reforms. Not many Americans had, until recently, relied on midwifery. Now business is booming—and that has big public-health benefits. And a much-needed update to the old saw that work expands to fill the time available. For full access to print, digital and audio editions of
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