'The war on inflation is over': Famed economist Paul Krugman just declared victory on white-hot inflation — and says we won at 'very little cost.' But here's what he left out of the math

Economist and Nobel Laureate Paul Krugman has declared victory over inflation. “The war on inflation is over,” he said in a recent tweet. “We won, at very little cost.”

The tweet was accompanied by a chart, which sparked a backlash across social media platforms.

Inflation measurements

Krugman’s chart seems to indicate that “inflation” has dropped below 2% in September 2023. However, the issue lies in the way he measures inflation. His chart uses the Consumer Price Index but strips out food, energy, shelter and used cars. Critics argue that this measure is simply too narrow.

“Ex food, energy, shelter and cars? What’s left, fax machines?” one reply to Krugman’s tweet read. The comment was apparently a dig at the professor’s infamous 1998 comment that the economic impact of the internet would be less than that of the fax machine.

Other critics argued that Krugman’s measure didn’t reflect the real economy. The Consumer Price Index, or CPI, is what most people associate with headline inflation. This measure was 3.7% in September, higher than forecasts and much higher than Krugman’s chart.

However, this isn’t the first time economists or even Fed officials have dissected inflation numbers this way. The Fed has mentioned its focus on core inflation — a measure that strips out energy and food from the CPI basket because these prices can be volatile and impacted by global supply chain issues.

Some economists have also referenced supercore inflation — a measure which strips out food and energy but also housing costs since this data is lagging. What’s left is a measure that’s focused on domestic labor and services, such as hiring a plumber or getting a haircut. Fed chairman Jerome Powell once argued that supercore inflation “may be the most important category for understanding the future evolution of core inflation.”

However, Krugman’s measure goes a step further and strips out used car prices too. Why he used this super-supercore measure is unclear. Nevertheless, it highlights a huge gap between how economists view the economy and how the average person experiences it.

source: https://finance.yahoo.com/news/war-inflation-over-famed-economist-144500791.html