How will we know if U.S. economy is in a recession?

Yet the U.S. economy is hardly in the clear. The solid growth in the October-December quarter will do little to alter the widespread view of economists that a recession is very likely sometime this year.

For now, the economy expanded at a 2.9% annual rate in the fourth quarter, though some of the underlying figures weren't as healthy. Consumer spending, for example, grew at a slower pace than in the previous quarter, and business investment was weak. Last quarter's growth was fueled by factors that won't likely last. These include companies' restocking of inventories and a drop in imports, which meant that more spending went to U.S.-made goods.

Increased borrowing rates and still-high inflation are expected to steadily weaken consumer and business spending. Businesses will likely pare expenses in response, which could lead to layoffs and higher unemployment. And a likely recession in the United Kingdom and slower growth in China will erode the revenue and profits of American corporations. Such trends are expected to cause a U.S. recession sometime in the coming months.

Still, there are reasons to expect that a recession, if it does come, will prove to be a comparatively mild one. Many employers, having struggled to hire after huge layoffs during the pandemic, may decide to retain most of their workforces even in a shrinking economy.

Six months of economic decline is a long-held informal definition of a recession. Yet nothing is simple in a post-pandemic economy in which growth was negative in the first half of last year but the job market remained robust, with ultralow unemployment and healthy levels of hiring. The economy's direction has confounded the Fed's policymakers and many private economists ever since growth screeched to a halt in March 2020, when Covid-19 struck and 22 million Americans were suddenly thrown out of work.

Inflation, the economy's biggest threat last year, is now showing signs of steadily declining. Used and new cars are becoming less expensive. Price increases for furniture, clothes and other physical goods are slowing.

Last year, the Fed raised its benchmark interest rate seven times, from zero to a range of 4.25% to 4.5%. The Fed's policymakers have projected that they will keep raising their key rate until it tops 5%, which would be the highest level in 15 years. As borrowing costs swell, fewer Americans can afford a mortgage or an auto loan. Higher rates, combined with inflated prices, could deprive the economy of its main engine – healthy consumer spending.

Fed officials have made clear that they're willing to tip the economy into a recession if necessary to defeat high inflation, and most economists believe them. Many analysts envision a recession beginning as early as the April-June quarter this year.