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Chapter 12, Problem 9P
To determine

The level of real GDP at the new point on the aggregate demand curve when price level falls to 120 from 125, total autonomous expenditure increases by $250 billion and the marginal propensity to consume being 0.75

Concept introduction:

MPC: Marginal propensity to consume is the percentage of the additional unit of currency that is consumed when the individual earns one more unit of currency.

Consumption: Portion of the consumed by the Individual.

As, Y = C + I + G, where Y stands for GDP, C for consumption, I for investment, G for government expenditure. Not taking net exports just for simplicity.

Also, Consumption (C) = Autonomous consumption + {MPC x (Income (Y) − Taxes (T))}

Economics Today: The Macro View, Student Value Edition Plus MyLab Economics with Pearson eText - Access Card Package (19th Edition), Chapter 12, Problem 9P , additional homework tip  1

Also, Economics Today: The Macro View, Student Value Edition Plus MyLab Economics with Pearson eText - Access Card Package (19th Edition), Chapter 12, Problem 9P , additional homework tip  2

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