OCR A-Level Economics H460
Introduction to Microeconomics
Microeconomics: The Role of Markets
Microeconomics: Business Objectives
Microeconomics: Market Structures
Microeconomics: The Labour Market
Macroeconomics: Aggregate Demand and Aggregate Supply
Macroeconomics: Economic Policy Objectives
Macroeconomics: Implementing Policy
Macroeconomics: The Global Context
Macroeconomics: The Financial Sector
Quantitative Skills for Economics
Themes in Economics: Synoptic Application
Macroeconomics: The Financial Sector
The quantity theory of money and interest rates in the money market
- 3 things to know
- Component 02
Overview
Recall questions on the Fisher equation MV = PQ with calculations, liquidity preference and the demand for money, and how the money market sets the interest rate.
What you need to know
Answer each one before you reveal it.
Why might an increase in the money supply raise real output rather than prices?
Why does a sustained rise in the money supply tend to raise the price level?
Questions from this subtopic
Each one with the model answer underneath.
- 1
Why does a sustained rise in the money supply tend to raise the price level?
Model answer
More money is chasing the same volume of goods and services, so spending rises faster than output can and the excess demand is absorbed by higher prices.
- 2
State the Fisher equation of exchange and say what each symbol stands for.
Model answer
MV = PQ, where M is the money supply, V is the velocity of circulation, P is the average price level and Q is the real level of transactions or output.
- 3
An economy has a money supply of £800 billion and a velocity of circulation of 6. Calculate the money value of national output.
Model answer
Using MV = PQ, PQ = £800 billion × 6 = £4,800 billion of nominal output.
- 4
Using MV = PQ, what happens to the price level if the money supply rises by 10% while velocity and real output are unchanged?
Model answer
The left-hand side rises by 10%, so with Q fixed the price level must also rise by 10%.
- 5
Which two assumptions must hold before MV = PQ implies that money growth causes proportional inflation?
Model answer
Velocity of circulation must be stable and real output must be fixed, which in practice means the economy is already at full capacity.
- 6
Why might an increase in the money supply raise real output rather than prices?
Model answer
If the economy has spare capacity, firms can meet the extra spending by employing idle resources, so Q rises instead of P; velocity may also fall if the new money is simply held rather than spent.
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