The Rhyme: Inflation Reaccelerates to 4.2% & Its 1977 Echo

"History doesn't repeat… but it rhymes." — Mark Twain

The number everyone wanted to ignore came in this morning, and it was worse than the calm of the past year had promised. Consumer prices rose 0.5% in May, pushing the annual rate to 4.2%, the highest reading in more than three years. Energy did most of the damage, jumping 3.9% in a single month as the standoff with Iran kept crude bid, but the headline still buried the story that markets had spent the winter telling themselves: that inflation was beaten, that the Fed would be cutting by summer. Now the conversation has flipped, and a few analysts are saying out loud what was unthinkable in January — the next move might be a hike.

CPI +4.2% Y/Y (highest since 2023) | Energy +23.5% Y/Y | Fed funds 3.50–3.75%, June 17 decision | S&P 500 7,337 (–1%)

Stocks fell, the ten-year held near 4.52%, and the rate-cut bets that had propped up the tape all spring quietly disappeared. We have seen this exact movie before. A central bank that declared victory too soon, a supply shock that wouldn't quit, and a number that came back from the dead.

By the spring of 1977, the worst seemed safely in the rearview mirror. The double-digit nightmare of 1974, when consumer prices had run at 11% and gas lines snaked around the block, had faded into something that felt like an old war story. Inflation had drifted down to 4.9% by the end of 1976. The recession was over. Jimmy Carter was in the White House, the economy was growing again, and the man running the Federal Reserve, a pipe-smoking economist named Arthur Burns, had decided the fire was out.

So he did what looked reasonable at the time. He cut. Burns had already taken the federal funds rate down from 13% in the middle of 1974 to under 5% by early 1977, and he kept the money flowing to protect the recovery. He treated the inflation of the early seventies the way a doctor treats a fever that has broken — as a thing that had happened, not a thing that was still happening. The oil shock was a one-time event, the thinking went. Prices had adjusted. Time to move on.

But the number never went back to where it started. Before the shock, in 1972, inflation had averaged about 3.2%. The bottom Burns managed to reach was 4.9% — and that floor was the tell. Each time the Fed eased and the economy ran hot, inflation settled at a higher resting place than the time before. Workers had learned to demand cost-of-living raises. Union contracts were being written with 8 to 10% annual bumps built in. Businesses had learned they could pass higher costs straight to the customer and nobody walked away. The expectations had moved, and expectations are the hardest thing in economics to put back in the box.

Through 1977 the number climbed. It finished the year at 6.7%, up nearly two full points from where it had bottomed, and Burns kept finding reasons it was temporary. Food prices. Energy. A weak dollar. Always something outside his control, never the easy money he had been printing. By the time he left the building in early 1978, the second wave was already rolling, and the man who replaced him would prove even softer.

The rhyme to this morning is hard to miss. A shock that supposedly passed. A central bank that called the all-clear and cut into it. A floor that turned out to be a launch pad.

The pattern is not the peak. The pattern is the floor — the level inflation refuses to fall below before it turns and climbs again, while the people in charge keep insisting the cause lies somewhere outside their reach.

The rhyme is loud, but it is not a recording. Three things break the pattern, and they are where the reader's real edge sits.

Here is how it played out the last time, and it is worth sitting with the dates. The 6.7% that closed 1977 was not the top. It was the on-ramp. G. William Miller took over the Fed in March 1978, proved even more reluctant than Burns to tighten, and the number kept grinding higher. From 1974 through 1978, inflation averaged 8%. By the first eight months of 1979 it averaged 10.75%, and a second oil shock out of Iran poured gasoline on a fire that was already out of control.

By the time Paul Volcker walked into the chairman's office on August 6, 1979, inflation was running at 11.8% and still climbing. He waited two months, then did the thing nobody had the stomach to do. On a Saturday night, October 6, 1979, Volcker announced the Fed would stop targeting the funds rate and start choking the money supply directly. Rates ripped toward 19%. The economy went into not one recession but two. Unemployment climbed to 10.8%. It was brutal, and it worked — inflation, which had peaked at 14.8% in March 1980, was back down near 3% by 1983.

The lesson the smart money pulled from that decade was not complicated, but it was expensive to learn. The cheap, painless moment to stop reaccelerating inflation is at the floor — at 4.9% in 1977, before it becomes 11% in 1979. Burns had that moment and spent it on a rate-cutting cycle. The bill came due under a different chairman, and it was paid in two recessions and the highest interest rates in American history. Bondholders who assumed the 1976 calm would last got destroyed across the back half of the decade. The ones who survived were the ones who stopped believing the all-clear and started believing the floor.

This morning's 4.2% is that floor speaking. The question the print forces is the same one Burns faced in the spring of 1977: is this the last gasp of a shock that's passing, or the first step of a climb that isn't? The market spent the winter certain it was the former. As of today, it is no longer sure.

The expensive mistake is never the inflation itself — it's deciding too early that it's over. The 1977 floor looked like an ending. It was a beginning. Today's read is whether the energy spike drains out clean, as the optimists bet, or whether 4.2% turns out to be the number we look back on as the easy one. Watch what the Fed does on June 17 with cut bets gone, and watch whether core follows energy up. Those two tells, not the headline, are where this rhyme either dies or keeps going.

Thursday brings the producer price index, the upstream cousin of today's number — and if PPI is hot too, the pressure flows straight into next month's CPI. It's the same sequence that ran through 1978, when wholesale prices led and consumer prices followed, and Miller's Fed watched both climb and did almost nothing.