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Part $1$

The simple multiplier effect shows the resulting change in real GDP due to an increase in government purchases or a decrease in taxes assuming that the price level is

$$

$$

$.$

Part $2$

In$$ reality, the SRAS is

$$

$$

horizontal

vertical

downward sloping

upward sloping

$.$

Part $3$

As a$$ result, when AD shifts to the$$ right, in reality the change in real GDP will be

$$

$$

greater than

less than

the same as

it would be if the price level were constant.