Definition
Deflation is a sustained decline in the general price level of goods and services across an economy, the opposite of inflation. As prices fall, the purchasing power of money rises, so a fixed amount of currency commands more goods over time. Economists distinguish broad deflation from isolated price drops in a single sector and from disinflation, which is merely a slowing rate of inflation.
Causes and conventional concerns
Central banks describe deflation as arising from falling aggregate demand, rising aggregate supply, or a shrinking money supply. Conventional macroeconomics treats sustained deflation as dangerous: if buyers expect prices to keep falling, they may delay spending, which can depress demand and employment. This "deflationary spiral" concern is a primary justification central banks give for targeting a small positive inflation rate.
The Bitcoin perspective
Many in the Bitcoin community contest the blanket view that deflation is harmful, distinguishing growth-driven deflation (technology lowering production costs, which benefits consumers) from debt-collapse deflation. Because Bitcoin's supply is capped, its design is structurally disinflationary trending toward zero new issuance, and proponents argue a money that gently appreciates can encourage saving and lower store-of-value friction. This is a contested area of economics, and reasonable analysts disagree.
At D-Central we present deflation as an educational concept, not a forecast or recommendation. For the contrasting force and the policy tools used against it, see inflation and quantitative easing, and compare against sound money.
In Simple Terms
Deflation is a sustained decline in the general price level of goods and services across an economy, the opposite of inflation. As prices fall, the…