# Solow growth: Compute the current US investment rate (I/Y)

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After reviewing the latest gures of investment rates for China and US, the

US Government is considering a scal policy manoeuver to increase investment

rate in US. In this question you are asked to use the Solow model to evaluate

the impact of this policy change. For simplicity assume that the US is a closed

economy so that

Y = C + G + I

where Y is GDP, C is private consumption, G is government consumption and I

is investment. Assume that the government currently taxes GDP at a 20% rate

and all tax revenues go to nance government consumption expenditures, which

are equal to 20% of GDP (so that G = 0:2Y ). The private sector consumes 80%

of after-tax GDP ((1-0.2)Y).

a) Compute the current US investment rate (I/Y)

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##### Solution Summary

The required investment rate (I/Y) is calculated for China and the United States investments.

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After reviewing the latest figures of investment rates for China and US, the US Government is considering a fiscal policy maneuver to increase investment rate in US. In this question you are asked to use the Solow ...

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