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Deflation: falling prices
· Concept
Fact, law or dataA rule, statute, definition or measured number.
A sustained fall in the general price level, so each dollar buys more over time.
See it on the Money & Finance map →How it works
Falling prices sound good, but they make fixed debts heavier in real terms, push people to delay purchases, and box in the central bank because rates cannot go much below zero. Irving Fisher named the vicious circle 'debt deflation' in 1933. US consumer prices fell about 25% from 1929 to 1933; Japan had mild deflation for much of 1998 to 2012. It differs from disinflation, when prices still rise, only more slowly.
Why it matters
Fear of a 1930s-style spiral is a big reason the Fed aims for 2% inflation rather than zero and acted so aggressively in 2008 and 2020.
Think of it like
For a leveraged owner, it is like rents falling while the mortgage balance stays fixed: equity gets squeezed from both sides.
Facts, rules and data
Price indexes such as the CPI, with data back to 1913; Fisher's 1933 paper; Ben Bernanke's research on the Depression; Japanese price data.
Debates and risks
Whether mild deflation from productivity gains, as in the late-1800s US, is harmless, and how much deflation itself hurt Japan's growth, are debated.
Connections (2)
▸Bimetallism and the 1896 'Cross of Gold' fight aimed to reverse Deflation: falling pricesFact, law or data
The connection
Under a gold-linked dollar, US prices fell for about two decades after 1873, roughly 1–2% a year, while farmers' mortgage debts stayed fixed. Free-silver advocates wanted unlimited coinage of silver at 16 ounces to one of gold to expand the money supply and lift prices. Bryan's 1896 'Cross of Gold' speech made it the election's central issue.
When and why
United States, 1873–1896; Populists and William Jennings Bryan at the July 1896 Democratic convention in Chicago. McKinley's victory settled the question for gold.
How we know
Historical price indexes show the long deflation, and Bryan's speech and the party platforms state the aim of raising prices with silver.
Debates and risks
Whether free silver would have helped farmers or just set off inflation and capital flight is debated; new gold from South Africa and the Klondike ended the deflation anyway.
▸Deflation: falling prices gripped Japan's bubble and 'lost decades' (1990–)Fact, law or data
The connection
After the bubble burst, falling land and stock prices left firms and banks with debts bigger than their assets. Firms paid down loans instead of investing, demand weakened, and prices began falling in the late 1990s. Falling prices raised the real weight of debts and real interest rates, even at zero, keeping growth slow.
When and why
Japan, mild deflation in most years from 1998 to 2012; the Bank of Japan cut its policy rate to zero in 1999.
How we know
Japan's consumer price index shows declines in most years of that span; Bank of Japan and IMF analyses link them to weak demand.
Debates and risks
Whether mild deflation of 0–1% a year actually caused Japan's slow growth, or mostly reflected an aging, shrinking workforce, is debated.