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MacroeconomicsI_working_version (1)

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30<br />

Chapter 3<br />

P<br />

AD<br />

E<br />

AS<br />

1. Equilibrium output equals<br />

the potential level of output.<br />

There is full employment in<br />

the economy - the natural rate<br />

of unemployment occurs at<br />

this level of output. All the<br />

possible (accessible) inputs<br />

(factors of production) are<br />

effectively used.<br />

Q*<br />

Q<br />

P<br />

AD<br />

E<br />

AS<br />

2. Equilibrium output does not<br />

reach the level of potential<br />

output. All the possible<br />

(accessible) inputs (factors of<br />

production) are not effectively<br />

used. The rate of unemployment<br />

is higher then the natural rate of<br />

unemployment. There is<br />

involuntary unemployment in<br />

the economy. Output gap =<br />

potential output – actual output.<br />

Q*<br />

Q<br />

P<br />

AD<br />

E<br />

AS<br />

3. Equilibrium output reaches the<br />

higher level then the potential<br />

level. The actual rate of<br />

unemployment is temporarily<br />

lower than the natural rate of<br />

unemployment. The economy is<br />

“overheated”. This situation is<br />

always temporary. It is impossible<br />

for the economy to be kept under<br />

such conditions in a long term.<br />

Q*<br />

Q

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