Key Concepts in Macroeconomics
1. Gross Domestic Product (GDP)
Definition: The gross domestic product (GDP) is the sum of all final products and services
produced inside a nation's boundaries over a certain time period.
Components:
Consumption (C): Household expenditure on products and services.
Investment (I): Spending on business capital, residential capital, and inventories.
Government Spending (G): Government expenditure for goods and services.
Net Exports (NX): Exports minus imports.
2. Unemployment
Definition: Unemployment occurs when persons who are actively seeking employment
are unable to obtain work.
Types:
o Frictional Unemployment: Frictional unemployment refers to short-term
unemployment caused by the process of connecting workers with available jobs.
o Structural Unemployment: Structural unemployment occurs when people'
abilities do not match job needs, leading to long-term unemployment.
o Cyclical Unemployment: Cyclical unemployment refers to job losses caused by
economic downturns.
o Natural Rate of Unemployment: The usual rate of unemployment that endures
over time in an economy, taking into account structural and frictional causes, is
known as the "natural rate of unemployment”.
3. Inflation
Definition: Inflation refers to rising costs for goods and services, leading to decreased
purchasing power.
Measurement:
o Consumer Price Index (CPI): The consumer price index, or CPI, tracks how
much people typically spend on a variety of products and services over time.
o Producer Price Index (PPI): The Producer Price Index, or PPI, calculates the
average variation in the selling prices that domestic producers obtain for their
production.
Causes:
o Demand-Pull Inflation: Demand-pull inflation is the result of an overall supply
shortage relative to aggregate demand.
o Cost-Push Inflation: Cost-push inflation occurs when production costs rise,
resulting in decreased aggregate supply.
1. Gross Domestic Product (GDP)
Definition: The gross domestic product (GDP) is the sum of all final products and services
produced inside a nation's boundaries over a certain time period.
Components:
Consumption (C): Household expenditure on products and services.
Investment (I): Spending on business capital, residential capital, and inventories.
Government Spending (G): Government expenditure for goods and services.
Net Exports (NX): Exports minus imports.
2. Unemployment
Definition: Unemployment occurs when persons who are actively seeking employment
are unable to obtain work.
Types:
o Frictional Unemployment: Frictional unemployment refers to short-term
unemployment caused by the process of connecting workers with available jobs.
o Structural Unemployment: Structural unemployment occurs when people'
abilities do not match job needs, leading to long-term unemployment.
o Cyclical Unemployment: Cyclical unemployment refers to job losses caused by
economic downturns.
o Natural Rate of Unemployment: The usual rate of unemployment that endures
over time in an economy, taking into account structural and frictional causes, is
known as the "natural rate of unemployment”.
3. Inflation
Definition: Inflation refers to rising costs for goods and services, leading to decreased
purchasing power.
Measurement:
o Consumer Price Index (CPI): The consumer price index, or CPI, tracks how
much people typically spend on a variety of products and services over time.
o Producer Price Index (PPI): The Producer Price Index, or PPI, calculates the
average variation in the selling prices that domestic producers obtain for their
production.
Causes:
o Demand-Pull Inflation: Demand-pull inflation is the result of an overall supply
shortage relative to aggregate demand.
o Cost-Push Inflation: Cost-push inflation occurs when production costs rise,
resulting in decreased aggregate supply.
