Which component of aggregate demand is the largest in a typical developed economy, and roughly what share does it take?

Consumption is much the largest, usually accounting for around 60% of aggregate demand.

Why can net exports be negative when no other component of aggregate demand can?

It is exports minus imports, so it becomes negative whenever spending on imports exceeds earnings from exports, whereas consumption, investment and government spending are each positive flows.

What does investment mean as a component of aggregate demand?

It is spending by firms on capital goods such as plant, machinery, buildings and additions to stocks, not the purchase of shares or other financial assets.

OCR A-Level Economics H460

Introduction to Microeconomics

Topic overview Economic and free goods, scarcity and positive and normative statements Economic agents and the factors of production Factor rewards, rationality and the objectives of economic agents Incentives and the functions of the price mechanism Market, planned and mixed economies and allocative and productive efficiency Opportunity cost, trade-offs and the production possibility curve Shifts of the production possibility curve and uses of opportunity cost

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Microeconomics: The Labour Market

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Macroeconomics: Aggregate Demand and Aggregate Supply

Topic overview The circular flow of income, injections and leakages Methods of measuring national income Components of aggregate demand and their determinants The slope of the aggregate demand curve and what shifts it Consumption, income and the role of expectations Short run and long run aggregate supply curves Shifts in short run and long run aggregate supply Macroeconomic equilibrium and the effects of demand and supply shifts The national income multiplier and marginal propensities The accelerator, the economic cycle and output gaps

Macroeconomics: Economic Policy Objectives

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Macroeconomics: The Financial Sector

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Macroeconomics: Aggregate Demand and Aggregate Supply

Components of aggregate demand and their determinants

3 things to know
Component 02

Overview

Recall questions on the four components of aggregate demand, their relative sizes, net exports, the determinants of consumption and investment, and the shape of the aggregate demand curve.

What you need to know

Answer each one before you reveal it.

Your recallNot started

Numbers

Which component of aggregate demand is itself the difference between two flows, and why does that matter?

Key term

Define aggregate demand.

Key term

State the four components of aggregate demand.

Questions from this subtopic

Each one with the model answer underneath.

1
Define aggregate demand.
Model answer
Aggregate demand is the total planned spending on a country's goods and services at each price level over a given period.
2
State the four components of aggregate demand.
Model answer
Consumption, investment, government spending and net exports, which is exports minus imports.
3
Which component of aggregate demand is the largest in a typical developed economy, and roughly what share does it take?
Model answer
Consumption is much the largest, usually accounting for around 60% of aggregate demand.
4
Which component of aggregate demand is itself the difference between two flows, and why does that matter?
Model answer
Net exports (X − M), because it is the difference between two separate flows, exports and imports, so it changes whenever either of them changes and can be negative.
5
Why can net exports be negative when no other component of aggregate demand can?
Model answer
It is exports minus imports, so it becomes negative whenever spending on imports exceeds earnings from exports, whereas consumption, investment and government spending are each positive flows.
6
What does investment mean as a component of aggregate demand?
Model answer
It is spending by firms on capital goods such as plant, machinery, buildings and additions to stocks, not the purchase of shares or other financial assets.

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Introduction to Microeconomics

Microeconomics: The Role of Markets

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Microeconomics: Market Structures

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