Inflation occurs when prices rise across the economy, reducing purchasing power. Two major forces behind this trend are:
Triggered by a drop in aggregate supply, often due to rising production costs such as labor, raw materials, or energy.
Driven by a surge in aggregate demand from households, businesses, governments, and foreign buyers.
Inflation reflects broad price increases not just isolated changes. Understanding its causes helps policymakers and investors respond effectively.
Cost-push inflation occurs when the aggregate supply of goods and services declines due to rising production costs. This supply-side pressure pushes prices higher across the economy.
When businesses face rising costs and can’t expand output, they pass those costs to consumers leading to inflation. In some cases, production slows down entirely, causing supply to lag behind demand and further driving up prices.
Example: If oil prices spike due to geopolitical tensions, transportation and manufacturing costs rise. Companies respond by increasing prices, triggering cost-push inflation.
For cost-push inflation to take hold, demand must remain steady while supply contracts. This condition known as inelastic demand means consumers continue purchasing even as prices rise due to production cost increases.
During the 1970s oil crisis, OPEC raised oil prices sharply. Global demand for oil stayed constant, but higher energy costs drove up the price of finished goods triggering widespread inflation.
When production costs rise:
This supply-side pressure causes inflation even without a change in consumer behavior.
Demand-pull inflation happens when aggregate demand rises faster than the economy’s ability to produce goods and services. This surge in demand comes from four key sectors:
When all sectors compete for limited output, prices rise as buyers “bid up” the cost of goods. This is often described as “too much money chasing too few goods.”
Common causes include:
Result: As demand increases from AD1 to AD2, supply remains fixed in the short run. Companies respond by raising prices to manage higher production costs and maintain profit margins.
When aggregate demand rises from AD1 to AD2 it doesn’t immediately shift aggregate supply. Instead, it causes a movement along the supply curve, increasing the quantity supplied but also raising the price level.
To meet higher demand, companies may:
These rising costs lead businesses to increase retail prices, contributing to demand-pull inflation similar to how cost-push inflation emerges from supply-side pressures.
Governments and central banks use targeted policies to manage both cost-push and demand-pull inflation:
These measures help firms produce more at lower cost, easing price pressure.
These steps help cool an overheated economy and stabilize prices.
Inflation is the sustained rise in the overall price level of goods and services, leading to reduced purchasing power. Four primary forces drive inflation:
Occurs when production costs rise due to higher wages, raw material prices, or taxes causing a decline in aggregate supply and pushing prices upward.
Happens when aggregate demand outpaces supply. As households, businesses, governments, and foreign buyers compete for limited goods, prices rise.
When central banks inject more money into the economy, consumers and businesses have more to spend fueling demand and driving up prices.
If people prefer spending over saving, the velocity of money increases, which can amplify inflation even if the money supply remains stable.
The recent global inflation surge was triggered by a combination of pandemic-related disruptions and economic responses:
The Federal Reserve considers an annual inflation rate of 2% to be ideal for a healthy economy. This target strikes a balance between:
Central banks worldwide often adopt similar targets to guide monetary policy, using tools like interest rates to keep inflation near this benchmark.
The law of supply and demand is the foundation of how market economies function. But when imbalances occur, two major types of inflation can disrupt stability:
Happens when supply shrinks due to rising production costs like wages, raw materials, or taxes. Businesses pass these costs to consumers, driving up prices.
Occurs when demand surges beyond what the economy can produce. As buyers compete for limited goods, prices rise especially during periods of rapid growth.
Both forms of inflation can lead to: