An economy has no imports and no taxes, the mpc is 0.9, and real gdp is $300 billion. businesses decrease investment by $10 billion. calculate the new level of real gdp. explain why real gdp decreases by more than $10 billion. the new level of real gdp is $nothing billion. real gdp decreases by more than $10 billion because the decrease in investment

Real GDP decreases by $100 billion because of the multiplier effect

The new level of GDP will be $200 billion

Explanation:

In an economy, there are no exports and no taxes.

The marginal propensity to consume is 0.9.

The real GDP is $300 billion.

There is a decrease in investment of $10 billion.

This $10 billion decrease in the investment will cause the real GDP to decrease by more than $10 billion. This happens because of the working of the multiplier.

Because of a proportionate change in the investment, the multiplier will cause the GDP to change by more than proportionate.

Multiplier

=

=

= 10

ΔGDP

= Multiplier × ΔI

= 10 × $10 billion

= $100 billion

So a $10 decrease in the investment will cause the real GDP to decrease by $100 billion.

The new level of real GDP will be

= $300 billion - $100 billion

= $200 billion

answer; /// radio frequency identification;

the answer is "b.the increased supply will create a surplus. "

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