Question: The extended goods market C = c 0 + c 1 (Y D ) Consumption function I = d 0 + d 1 i +

The extended goods market

C = c0+ c1(YD)Consumption function

I = d0+ d1i + d2YInvestment function

G = g0-g1YGovernmentexpenditures

T = t0+t1YTaxes

YD= Y - TDisposable income

Z = C + I + G + X - IMDemand

X = x1Y*Export

IM = m1YImport

a.Present the mathematical calculation of the multiplier.

b.Which elements in the model increase the strength of the multiplier, and which elements decrease the strength of the multiplier? Explain!

c.Some elements in the model can be labeled as 'automatic stabilizers'. i) Explain what an automatic stabilizer is, and ii) which elements can be labeled as such?

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