When Price Controls Came Off

By the spring of 1945, America had spent nearly four years at war. Factories that once built Fords now built B-24 bombers. Nylon went to parachutes, not stockings. Meat, sugar, coffee, and gasoline were rationed. And through it all, the Office of Price Administration kept a tight lid on what merchants could charge, holding consumer prices roughly flat even as the war economy pumped wages higher and higher.

Americans saved because they had no choice. War bonds absorbed the surplus. Bank deposits swelled. By V-J Day in August 1945, households sat on an estimated $140 billion in liquid savings — equal to roughly 70% of GDP. It was the largest forced savings pool in history, and it had nowhere to go.

Then, on June 30, 1946, Congress let the OPA expire.

What followed was not gradual. Within months, the consumer price index — which had barely budged during four years of global conflict — began climbing at rates Americans had never experienced in peacetime. The CPI rose 1.96% in September 1947 alone. Over the following 18 months, prices surged 13.6%, peaking at a year-over-year rate of 10.2% in January 1948.

The post-war inflation wasn't mysterious. It was the predictable collision of three forces: enormous pent-up demand, constrained supply, and a central bank that was not yet free to act.

On the demand side, 12 million servicemen came home wanting houses, cars, and refrigerators. Civilian workers who had earned good wartime wages but couldn't spend them now opened their wallets. Consumer spending surged just as factories were still converting from tanks back to Chevrolets.

On the supply side, industrial production had collapsed. After peaking at wartime levels in early 1944, the Federal Reserve's industrial production index plunged 36% by February 1946. Factories needed time to retool. Supply chains designed for military logistics had to be rebuilt for consumer goods. The result was exactly what economics textbooks predict: too many dollars chasing too few goods.

But perhaps the most consequential factor was the Federal Reserve's inability to respond. Under an informal agreement with the Treasury Department dating to 1942, the Fed was committed to keeping interest rates low to help the government finance its war debt. Three-month T-bills were pegged at 0.375% — and stayed there through mid-1947, even as inflation raged above 10%.

Real interest rates were deeply negative — roughly -10%. Savers were being punished. Borrowers were being subsidized. And the Fed could do nothing about it. This arrangement would persist until the famous Treasury-Fed Accord of 1951, which finally freed the central bank to conduct independent monetary policy.

What killed the post-war inflation wasn't the Federal Reserve — it couldn't act. It was the market itself.

By late 1948, factories had retooled. Detroit was shipping cars again. Supply caught up with demand. And when it did, prices didn't just stabilize — they fell. The CPI turned negative in May 1949 and kept falling, reaching -3.0% year-over-year by August. America had gone from 10% inflation to 3% deflation in just 19 months.

The adjustment was not painless. Unemployment, which had been a tight 3.4% in January 1948, rose sharply to 7.9% by October 1949. The recession of 1948-49 was real, if brief. Industrial production dipped again. But by early 1950, the economy was growing once more — and growing without inflation.

The post-WWII episode offers three lessons that resonate across every subsequent inflation cycle.

First, suppressed inflation isn't eliminated inflation. Price controls during the war didn't destroy demand — they just delayed it. When controls came off, the pent-up pressure released all at once. The same dynamic appeared in 2021, when COVID lockdowns suppressed spending and then unleashed it. Governments that confuse price stability with controlled prices learn this lesson repeatedly.

Second, supply-side recovery can be powerfully deflationary. No central banker killed the 1946-48 inflation. The Fed was handcuffed to the Treasury's interest rate peg. Instead, the market corrected itself. Factories retooled. Supply met demand. Prices fell. This stands in sharp contrast to the Volcker episode of 1979-82, where the Fed had to engineer a brutal recession to break inflation. The difference? In 1948, the supply side was healing. In 1980, it wasn't.

Third, the swing from inflation to deflation can be shockingly fast. From +10.2% to -3.0% in 19 months. Investors who positioned for permanently high prices in mid-1948 were punished within a year. The same rapid reversal occurred in 2022-23, when CPI fell from 9.1% to under 4% in just 12 months. Inflation, once broken, tends to fall faster than it rises.