00:01
Okay, question 9.
00:03
For each of the following events, explain the short -run and long -run effects on output and the price level.
00:11
The soon policymakers take no action.
00:14
So question a, the stock market declines sharply, reducing consumer's wealth.
00:22
So this question is easy.
00:24
Since the consumer's wealth is reduced, people are not that rich.
00:30
They can buy fewer goods.
00:31
So the aggregate supply, sorry, the aggregate demand curve shifts to the left and the equilibrium moves from this point to the red point over here.
00:46
So in the short run, the price level is going down and the output is going down.
00:53
But in the long run, we know that the aggregate supply will adjust accordingly.
01:05
So in a long run, we still have this equilibrium ended up here.
01:11
All right, question b, the federal government increases spending on national defense.
01:19
So an increase of government spending is an increase in aggregate demand.
01:26
So we know that we have this new aggregate demand here.
01:31
So same, we have this new equilibrium here...