Question

An increase in investment shifts the ae curve upward by an amount equal to the​ ______, and shifts the ad curve rightward by an amount equal to the​ ______.

Answer 1

An increase in investment shifts the AE curve upward by an amount equal to the​ change in investment, and shifts the AD curve rightward by an amount equal to the​ change in the investment by the multiplier.
The AE curve stands for the aggregate expenditure which measures expenditures on consumption. The AD curve stands for the aggregate demand curve which measures the demand levels when prices change for a good or service in an economy.