SSC Selection Post 2025 PYQ — Question 13

Correct Answer

Total demand for goods and services in an economy

Explanation

In macroeconomics, aggregate demand (AD) represents the total quantity of all finished goods and services produced in an economy that all sectors are willing and able to purchase at a specific overall price level and within a specific time period. It does not focus on a single industry or specific product market, but rather sums up the economic spending across the entire nation.

Aggregate demand is calculated by summing up four primary components of gross domestic product (GDP). The first component is Consumer Spending (C), which includes household expenditure on food, clothing, and services. The second is Investment Spending (I) by businesses on capital goods like machinery, factories, and equipment. The third is Government Spending (G) on public infrastructure, defense, and government employee salaries. The final component is Net Exports (X - M), calculated as total exports minus total imports. Together, these elements determine the total expenditure in the macroeconomic framework.

Key Points

A change in the general price level causes a movement along the aggregate demand curve, which typically slopes downward from left to right due to the wealth effect, interest rate effect, and foreign purchases effect.

Changes in non-price factors, such as consumer confidence, corporate tax cuts, interest rate policies, or global economic growth, cause the entire aggregate demand curve to shift either to the right (increase) or to the left (decrease).

While microeconomics analyzes the demand curve of an individual or a specific product, macroeconomics scales this up to aggregate demand to measure the total spending and health of the entire national economy.

Important Questions and Answers

Question: What is the mathematical formula used to calculate aggregate demand in macroeconomics?

Answer: The formula is AD = C + I + G + (X - M), where C is consumption, I is investment, G is government spending, X is exports, and M is imports.

Question: How does an increase in interest rates by a central bank affect aggregate demand?

Answer: Higher interest rates generally decrease aggregate demand because borrowing becomes more expensive, leading to reduced consumer spending on loans and lower business investments.