The Omicron variant is circling the globe, closing borders and sparking new restrictions on economic activity. Yet central banks, instead of loosening monetary policy to prop up their economies as they did at the start of the pandemic, are moving to unwind stimulus and raise interest rates.
The moves reflect a new thinking among policy makers about the pandemic’s economic effects: Central-bank officials worry that rather than simply threatening to curtail economic growth, a surge in Covid-19
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