Markets are reeling from higher rates. The world economy is next

The world’s financial markets are going through their most painful adjustment since the global financial crisis. Adapting to the prospect of higher American interest rates, the ten-year Treasury yield briefly hit 4% this week, its highest level since 2010. Global stockmarkets have sold off sharply, and bond portfolios have lost an astonishing 21% this year.

The dollar is crushing all comers. The greenback is up by 5.5% since mid-August on a trade-weighted basis, partly because the Fed is raising rates but also because investors are backing away from risk. Across Asia, governments are intervening to resist the depreciation of their currencies. In Europe Britain has poured the fuel of reckless fiscal policy on the fire, causing it to lose the confidence of investors. And as bond yields surge, the euro zone’s indebted economies are looking their most fragile since the sovereign-debt crisis a decade ago.