Will America’s stockmarket convulsions spread?
Investors are hurrying to find alternatives—but all face difficulties of their own

It seems like five minutes ago that America’s stockmarket was the only game in town. Prices were breaking records every other week; rivals around the world had been left behind. Now investors’ faith in the country’s exceptionalism has been shaken by a deteriorating outlook for economic growth and Donald Trump’s erratic protectionism (see chart 1). Investors are therefore less willing to pay far higher multiples of underlying earnings for shares in American firms than for those listed elsewhere, a decision that had been justified by fatter profit margins and stronger growth prospects.
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