Inflation

Concept / Term

Inflation

Branch

Macroeconomics

Definition & Explanation

Inflation

Inflation is a sustained increase in the general price level of goods and services in an economy over a period of time. This increase in prices leads to a fall in the purchasing power of money, meaning each unit of currency buys fewer goods and services than before.

Measurement of Inflation

Consumer Price Index (CPI): The most widely used measure of inflation. It tracks the average change over time in the prices paid by urban consumers for a "market basket" of consumer goods and services (e.g., food, housing, transportation, medical care).
Wholesale Price Index (WPI): Measures the average change in the prices of goods at the wholesale or producer level, before they reach retail consumers. It serves as an early indicator of inflationary pressures.
GDP Deflator: (See GDP entry) A broader measure that reflects the prices of all domestically produced final goods and services in an economy.

Types of Inflation (by Rate)

Type	Annual Rate	Characteristics
Creeping/Mild Inflation	$1% - 3%$	A mild and predictable rate, often seen as healthy for economic growth.
Walking/Moderate Inflation	$3% - 10%$	Causes concern; begins to erode purchasing power significantly. Policy action may be required.
Galloping Inflation	$10% - 50%$ or more	Leads to severe economic instability, distrust in currency, and social unrest.
Hyperinflation	$>50%$ per month	An extremely rapid and out-of-control increase in prices, often leading to economic collapse and the breakdown of normal commerce.

Causes of Inflation

Demand-Pull Inflation: Occurs when aggregate demand for goods and services in an economy grows faster than the economy's ability to produce them (aggregate supply). This is often described as "too much money chasing too few goods."
Cost-Push Inflation: Arises from an increase in the cost of production for businesses. This can be due to rising wages, higher raw material prices, increased energy costs, or higher taxes, which producers pass on to consumers through higher prices.
Built-in Inflation (Wage-Price Spiral): Often a result of past inflation. As prices rise, workers demand higher wages to maintain their real income. Higher wages increase production costs, leading to further price increases, creating a continuous cycle.

Effects of Inflation

Erodes Purchasing Power: The most direct effect; money loses value over time, meaning consumers can buy less with the same amount of money.
Redistributes Wealth: Generally benefits borrowers (as they repay loans with money that has less purchasing power) and hurts savers (as the real value of their savings diminishes).
Reduces Real Wages: If nominal wages do not keep pace with the rate of inflation, workers' real (inflation-adjusted) wages decline.
Increases Uncertainty: High or unpredictable inflation creates uncertainty for businesses and consumers, discouraging investment and long-term planning.
Negative Impact on Exports: If domestic inflation is higher than in trading partners, domestic goods become relatively more expensive, reducing export competitiveness.

Control Measures

Governments and central banks use various policies to manage inflation:

Monetary Policy: Central banks (like Nepal Rastra Bank - NRB) can implement a tight monetary policy by raising interest rates, increasing reserve requirements, or selling government securities through Open Market Operations. These actions reduce the money supply and aggregate demand, thereby curbing inflation.
Fiscal Policy: Governments can employ a contractionary fiscal policy by reducing public spending or increasing taxes. This reduces overall aggregate demand in the economy, which can help to cool down inflationary pressures.