The multiplier and the accelerator (OCR A-Level Economics): Quizzes

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The multiplier and the accelerator
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What does the multiplier effect describe?

When spending changes cause greater GDP changes

Which formula calculates the multiplier?

1/(1MPC)1/(1-MPC)

What components make up MPW?

MPM+MPS+MRTMPM+MPS+MRT

Who suggested the multiplier concept in the 1930s?

Keynes

When is the multiplier effect smaller?

With large leakages in circular flow

When does a low MPS create a large multiplier?

Less income allocated to saving

What does the national income multiplier measure?

Ratio of national income change to spending

What is the formula for national income multiplier?

1/(1MPC)1/(1-MPC)

What does the accelerator effect describe?

Investment responds to income change rate

What does multiplier-accelerator interaction cause?

Significant economic fluctuations

What characterises a negative output gap?

Actual output below potential output

What indicates a positive output gap?

Actual output exceeds potential output

How is APC calculated?

C/YC/Y

If income rises £10,000 and consumption rises £6,000, what is MPC?

0.6

If MPC is 0.8 and govt. spends £100m more, what is the total national income increase?

£500m

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