Why the Fed targets 2% inflation

US inflation came in line with expectations in November. The Consumer Price Index, a measure of goods and services across the country, rose 0.3% from October to November, a 2.7% gain from the same period a year ago. Core prices, which exclude the costs of food and energy, were up 0.3% month over month.

The latest data comes a week ahead of the Federal Reserve's December meeting on Dec. 17-18. Markets are pricing in the central bank's third interest rate cut as it inches closer to its inflation target of 2% over the long run.

"We continue to be confident that with an appropriate recalibration of our policy stance, strength in the economy and the labor market can be maintained, with inflation moving sustainably down to 2%," Federal Reserve Chair Jerome Powell said following the November FOMC meeting.

That came after November jobs data pointed to a rebound, following a month negatively affected by hurricanes and the Boeing (BA) strike. The US economy added 227,000 jobs in the month.

Why 2%?

Why is the target set at 2%?

Inflation data has long been a precursor of Fed policy changes because of the central bank's dual mandate to promote maximum employment and price stability.

While the central bank has never explicitly defined a number for maximum employment, inflation expectations have been anchored to 2% since 2012.

David Wilcox, an economist with the Peterson Institute for International Economics and Bloomberg Economics, said that the 2% target gives the central bank ample room to adjust policy to maintain the health of the economy.

“You want a little bit of a buffer for the Fed to be able to cut interest rates when times are normal so that if the economy tips into recession, there's room for the Fed to take action against it,” Wilcox said. “You want to start out with interest rates high enough above zero so that there's latitude for the Fed to ease conditions, to lower interest rates, to bring mortgage rates down, and borrowing rates for cars.”

Read more: Fed predictions for 2024: What experts say about the possibility of a rate cut

'A revolution' in central bank thinking

The 2% target has been widely adopted by central banks around the world today, but its foundation stems from an off-the-cuff remark made in New Zealand, not an academic research paper.

In 1988, New Zealand was grappling with two decades of double-digit inflation. When the country's Finance Minister, Roger Douglas, was pressed in a television interview on how he planned to bring high prices down, he said he wanted inflation to come down to a range of 0% to 1%. At the time, prices had already begun dipping below 10% for the first time in years.


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