Inflation is a monetary phenomenon in which consumers see a broad rise in the prices of goods and services across the economy over time

US inflation can generally be split into to two periods—before and after the Federal Reserve

A central bank itself does not mean significant inflation will occur, but economists generally point to factors like two world wars and the printing of money to finance the US federal deficit as primary drivers of price increases.

Economists define deflation as a sustained decline in prices across an economy

Deflationary periods are characterized by broad, significant price declines. The Federal Reserve can monitor deflation by tracking prices through price indexes, such as the Consumer Price Index (CPI), which characterizes the average costs for consumers each month.

Inflation explained in under 3 minutes

Keep seeing inflation in the news, but don't have a great grasp on what it means or how it works? This overview from 1440 breaks down how economists think about inflation, what it means for the average consumer, and how governments attempt to keep rising prices in check through various policies.

Disinflation, a decrease in the rate of inflation, is different from deflation

Disinflation happens when prices are still going up, just at a slower rate. Prolonged disinflation is also often accompanied by a recession, making it painful for consumers.

The highest inflation ever recorded in US history was estimated at 30% in 1778, just after the Revolutionary War.

Fast-food prices have increased more over the past 10 years than both full-service restaurants and inflation.

Prices can still feel high even if inflation is slowing

This is partly because a recent spike in inflation raised prices permanently, so even though the pace of price growth has slowed, prices have still gone up for good.

'Good deflation' happens when prices naturally track with supply, meaning prices change gradually

This tends to make products and services more affordable and normalizes the standard of living. Bad deflation usually happens when there are sudden changes to either supply or demand. Near-zero [interest rates helped create the real estate bubble that sparked the Great Recession when it crashed](https://www.youtube.com/watch?v=LMo9mD8j7IA&t=91s) Because deflation distorts the value of money, deflation is particularly harmful for borrowers. Low interest rates made it easy for businesses and everyday people to take on enormous debt, which exacerbated the effects of the recession.

Raising interest rates can help control inflation

While controlling a complex and dynamic economy is difficult, interest rates—more specifically, the rate at which banks lend each other money overnight—are a powerful tool. Generally, raising the rate makes purchases more expensive and cools an overheated economy.

Inflation was a word before deflation was

The word inflation has Latin roots and technically means an influx of air, first appearing in the English language in the 1890s to describe bike tires. Deflation's first known mention in an economic text was in 1919.

Venezuela is experiencing hyperinflation

Consumer prices in the country have risen at a fairly quick rate since 1983, but a series of policy miscalculations, falling oil prices, and other factors have sparked extreme levels of inflation since 2017, with citizens losing faith in the value of the national currency.

An updated, comprehensive tracker of global inflation

This tracker provides a visual narrative of inflation rates, central bank policies, consumer price breakouts, and more from nations across the globe.

In the 1970s, the US experienced a period of stagflation

It was characterized by high inflation, slow economic growth, and high unemployment. The crisis was triggered by a combination of factors, including loose monetary policy that spurred excess demand and spiraling oil prices caused by an OPEC embargo in 1973.

US cities where inflation is rising the most

WalletHub compared 22 major metropolitan areas to see how inflation has risen in the last year using the Consumer Price Index, which describes the average cost of a basket of goods. As of April 2024, Honolulu, Hawaii, clocked in with the greatest year-over-year change in prices, with inflation close to 5%. See the full list here.

Falling demand and lower costs of production cause deflation

"Falling demand" refers to anything that changes someone's willingness to spend money on goods and services. Global recessions, fears of a worldwide recession, and a fall in the money supply are all factors that could lead to falling demand. Likewise, lower production costs allow companies to increase production, which can lead to a surplus in supply.

The Federal Reserve targets 2% inflation

It’s an arbitrary number originating from an offhand comment made by a New Zealand policymaker. The real objective is to maintain predictable prices for businesses and families to plan around while avoiding the dangers of deflation.

The psychological aspect of deflation makes it difficult for policymakers to stabilize the economy

That psychological aspect is referred to as "the deflationary spiral." When prices start decreasing, people tend to hold on to their money to pay the lowest prices. But as prices start stabilizing, people resist increasing prices. (Some users may experience a paywall.)

Interest rates have historically been an indicator of the US economy's overall health.

Stablecoins could give people in high-inflation economies access to stronger currencies

Specifically, stablecoins could provide a way to make sure these funds remain valuable during times of volatility. Some examples of people without access to the US dollar using stablecoins as a store of value have been observed in Venezuela.

Check the current Consumer Price Index

The Consumer Price Index is a metric that attempts to capture price changes felt by consumers by averaging a basket of about 80,000 items, each weighted to reflect the impact of changes on households.

In the aftermath of the 2008 financial crisis, the Fed began a program of quantitative easing

This program injected trillions of dollars of new money into financial markets to stimulate the economy. The move catalyzed an 11-year bull run and was repeated during the pandemic. Experts argue such power could worsen wealth inequality and contribute to bubbles in housing and finance.

'Loveflation' is making dating more expensive and less frequent

A survey found that more than half of Americans are going on fewer dates due to rising costs, with 27% stopping altogether. Gen Z and millennials are the hardest hit, with 62% reporting changes in their dating habits due to inflation.

'Floating rate' loans periodically adjust their interest rates in accordance with economic conditions

When the Federal Reserve began raising interest rates in 2022 to combat inflation, interest payments borrowers owed to private credit lenders increased accordingly. Private credit funds benefited as loan returns increased, making the asset class attractive to investors at the time.

Central bank independence is correlated with lower inflation on average

Executives may seek to influence the central bank to reduce interest rates for political points. Since its creation in the early 20th century, the US' Federal Reserve saw the most interactions from the president during the Nixon and Ford administrations.

The world's most famous case of deflation happened after Black Thursday

While the details are not fully agreed upon, many economists point to the Federal Reserve's tightening of the money supply as a prime culprit, leading to a significant deflationary spiral.

Indicators of economic bubbles include euphoric narratives and extreme valuations.

Technological advancements are historically deflationary

Technological innovation can drive down costs and prices for businesses, which can increase real wages for employees. As a result, people have more money to spend and demand increases.

The Fed can use quantitative easing to stimulate growth once it has lowered the federal funds rate as far as it can go

This involves purchasing large-scale assets from banks beyond just Treasury bills and bonds. This effectively gives banks much more liquidity, with the hope that they will actively lend it out at cheaper rates and expand the economy. But quantitative easing runs the risk of sparking inflation.

Learn about what causes economic bubbles, including how forces like cheap credit, soaring optimism, and feedback loops push asset prices far beyond fundamentals—until a single shock triggers panic, selling, and a rapid collapse.

The Great Depression is one of history's most notable periods of deflation

The stock market crash of 1929 helped trigger a period of deflation in the United States by creating a drastic decrease in the total money supply. Because of the United States' central role in the world economy, virtually every single country was impacted by the recession.

The Federal Reserve can set interest rates below zero

Interest rates, the cost of borrowing money, are the primary tool the Federal Reserve uses to control inflation. During periods of deflation, setting interest rates below zero penalizes saving, encourages banks to lend more and moves more cash through the economy.

Wedding cost increases have outpaced inflation

The cost of the average US wedding rose by 13.79% between 2023 and 2024, whereas the inflation rate during the same time period was roughly 2.9%.

College tuition has climbed 600% in 40 years

The cost of attending college has outpaced inflation in the US. Tuition has climbed more than 600% in the past 40 years; more than three times the inflation rate. Many students have racked up student loans to cover rising college costs, while others have chosen not to attend college altogether.

What something costs is reflective of a balance in the market determined by the amount of demand relative to the supply of goods and services

Because economies are complex systems, a wide variety of issues influence this balance—including some things generally considered to be positive, like rising wages.

China had an inflation rate of -0.4% in August 2025

As opposed to other G20 countries that are largely struggling with high inflation rates, China is facing deflation. Sluggish growth in the country's once booming real estate market is just one glimpse into the consumer slowdown triggering deflation.

Since its introduction, the price of bitcoin has experienced significant volatility

Driven in large part by speculation and intense social media attention during the pandemic, along with the availability of capital during near-zero interest rate periods, the price has seen at least three major crashes despite steadily increasing over the long run since 2014.

President Trump's 2025 Tariffs added less inflationary pressure to the economy than expected in their first year

A year after the so-called "Liberation Day" in April 2025, tariffs have had a milder effect on inflation than feared—core goods prices have added only about 0.2% to the headline Consumer Price Index—but persistent policy uncertainty has rattled small business owners, who say the constant back-and-forth makes long-term planning difficult.

In President Trump's first year of his second term, inflation fell from 3% year-over-year in January 2025 to 2.7% in December

While the price of eggs and bread went down over Trump's first year in office during his second term, coffee and beef prices rose. Utility bills and home insurance continued to surge, but mortgage rates, rent, and home prices began to stabilize in 2025.

Read former Fed chair Ben Bernanke's 2002 speech about preventing deflation

Very low inflation rates in the early 2000s in the United States and a worsening recession in Japan sparked some domestic concern over the threat of deflation. While Bernanke wasn't Chair at the time of the speech, he emphasized the Fed's role in preventing deflation.

In 2023, the US money supply fell at its fastest rate since the 1930s

The money supply tracks how much cash, as well as electronic funds like savings accounts, is circulating through the economy. And a downward turn can be a bad sign.

Mapping projected food inflation across the world in 2026

Iran tops the list of hardest-hit countries with a projected 56% inflation on food prices in 2026, followed by Argentina (33%) and Turkey (25%). In the opposite direction is Niger, whose food inflation is expected to drop 18% as a result of strong harvests and financial stabilization. The global average of food inflation is expected to be 3%.

Series I bonds are a form of government savings bonds created to shield your investments from inflation

Specifically, I bonds earn interest from both a fixed rate and an inflation rate. This article explains who might benefit from investing in I Bonds—for instance, people seeking to invest savings they do not need to access in the near future.

Switzerland's currency is so strong that it could cause deflation

Economic instability in the United States in 2025 strongly benefited Switzerland, where the value of the franc relative to the dollar increased by about 12.7%. In response, the price of imports dramatically decreased, making goods overall much cheaper.

33% of Americans say they don’t know very much about what the Fed does

While most Americans grasp the central bank’s impact on curbing inflation, they don’t know that the Fed is tasked with what is called a “dual mandate” to provide price stability and maximum employment. Furthermore, few understand the Fed is independent—it does not answer to Congress or the US president.

How interest rates affect homebuying

Rising interest rates impact every aspect of buying a home. This five-minute article gives a high-level overview of the relationship between the housing market and interest rates.

The cost of college has more than tripled over the past five decades

Determining the all-in cost for each student’s specific circumstances can be tricky. But what is behind the rise in price? Analysts point to a number of factors—lack of transparency around cost, expansive government support, increased administrative burdens at schools, and more.

Many reality TV show prizes have been diluted by inflation, as prize money hasn't increased for many of these competitions in decades.

You can find the value of a dollar dating back to 1635

The value of a dollar hasn’t been consistent throughout history. An inflation calculator lets you compare the value of dollars from any two years over the past four centuries.

For everyday Americans, a relatively high national debt can lead to higher interest rates on financial products such as mortgages.

Some argue that the rising US national debt has become more important in recent months.