Edexcel A-Level Economics B 9EB0
Scarcity, Choice and Potential Conflicts
Enterprise, Business and the Economy
Introducing the Market
The Role of Credit in the Economy
Market Failure and Government Intervention
Revenue, Costs, Profits and Cash
Business Growth and Competitive Advantage
Firms, Consumers and Elasticities of Demand
Productive Efficiency
Life in a Global Economy
The Economic Cycle
Introduction to Macroeconomic Policy
Globalisation
Economic Factors in Business Expansion
Impact of Globalisation on Global Companies
Impact of Globalisation on Local and National Economies
Global Labour Markets
Inequality and Re-Distribution
Competition and Market Power
Market Power and Market Failure
Market Failure Across the Economy
Macroeconomic Policies and Impact on Firms and Individuals
Risk and the Financial Sector
The Economic Cycle
Aggregate supply, input costs and productivity
- 3 things to know
- Papers 2 and 3
Overview
Aggregate supply in the short and long run, input costs that shift short-run aggregate supply including oil prices, depreciation and national insurance, productivity against production, how productivity shifts long-run aggregate supply and allows non-inflationary wage rises, unit labour costs, and migration and other long-run factors.
What you need to know
Answer each one before you reveal it.
Name three input costs whose change shifts short-run aggregate supply.
Explain how a rise in world oil prices affects short-run aggregate supply.
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is aggregate supply?
Model answer
Aggregate supply is the total output that firms in an economy are willing and able to produce at each price level over a given period.
- 2
How does short-run aggregate supply differ from long-run aggregate supply?
Model answer
Short-run aggregate supply shows output when input prices such as wages are fixed, whereas long-run aggregate supply shows the economy's productive potential once all prices and wages have adjusted.
- 3
Name three input costs whose change shifts short-run aggregate supply.
Model answer
Wage rates, the price of raw materials and energy, and the cost of imported components.
- 4
Explain how a rise in world oil prices affects short-run aggregate supply.
Model answer
Energy and transport are inputs to almost every industry, so costs rise at every level of output and the short-run aggregate supply curve shifts to the left.
- 5
How does a depreciation of the currency affect aggregate supply?
Model answer
Imported raw materials and components cost more in domestic currency, so firms' costs rise and short-run aggregate supply shifts to the left.
- 6
How does an increase in employers' national insurance contributions affect aggregate supply?
Model answer
It raises the cost of employing each worker, so firms' costs rise at every level of output and short-run aggregate supply shifts to the left.
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