NOTES
1. AGGREGATE DEMAND (AD)
Definition
Aggregate Demand (AD) represents the total demand for goods and services in an
economy at a given price level over a period of time. It is the sum of Consumption
(C), Investment (I), Government Spending (G), and Net Exports (X - M):
AD=C+I+G+(X−M)AD = C + I + G + (X - M)
Who Uses It?
• Governments to manage economic policies (e.g., fiscal & monetary policy).
• Businesses to forecast demand and adjust production.
• Economists to analyse macroeconomic trends.
What & Where?
• Used in macroeconomics to measure total demand in an economy.
• Where? In all economies—developed (USA, Japan) and developing (India,
Brazil).
Why Is It Important?
• Affects GDP growth, employment, and inflation.
• Helps determine business cycles (boom, recession).
How & When Does AD Shift?
AD shifts due to changes in C, I, G, (X - M):
• AD Increases (Shifts Right)
✓ Lower interest rates (more borrowing & spending).
✓ Higher government spending (stimulus packages, infrastructure projects).
✓ Increased exports (weaker domestic currency).
✓ Consumer confidence (people spend more).
• AD Decreases (Shifts Left)
✓ Higher interest rates (less borrowing & investment).
✓ Higher taxes (reducing disposable income).
✓ Declining exports (stronger domestic currency).
✓ Recession (lower consumer confidence).
1. AGGREGATE DEMAND (AD)
Definition
Aggregate Demand (AD) represents the total demand for goods and services in an
economy at a given price level over a period of time. It is the sum of Consumption
(C), Investment (I), Government Spending (G), and Net Exports (X - M):
AD=C+I+G+(X−M)AD = C + I + G + (X - M)
Who Uses It?
• Governments to manage economic policies (e.g., fiscal & monetary policy).
• Businesses to forecast demand and adjust production.
• Economists to analyse macroeconomic trends.
What & Where?
• Used in macroeconomics to measure total demand in an economy.
• Where? In all economies—developed (USA, Japan) and developing (India,
Brazil).
Why Is It Important?
• Affects GDP growth, employment, and inflation.
• Helps determine business cycles (boom, recession).
How & When Does AD Shift?
AD shifts due to changes in C, I, G, (X - M):
• AD Increases (Shifts Right)
✓ Lower interest rates (more borrowing & spending).
✓ Higher government spending (stimulus packages, infrastructure projects).
✓ Increased exports (weaker domestic currency).
✓ Consumer confidence (people spend more).
• AD Decreases (Shifts Left)
✓ Higher interest rates (less borrowing & investment).
✓ Higher taxes (reducing disposable income).
✓ Declining exports (stronger domestic currency).
✓ Recession (lower consumer confidence).
