An increase in the price level shifts the aggregate expenditure curve downward and results in a movement along the aggregate demand curve. Why does an increase in the price level result in a shift in the aggregate expenditure curve rather than a movement along it?

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The Answer of An increase in the price level shifts the aggregate expenditure curve downward and results in a movement along the aggregate demand curve. Why does an increase in the price level result in a shift in the aggregate expenditure curve rather than a movement along it?

An Increase in the Price Level Shifts the Aggregate Expenditure