Consider an open economy with the following consumption, investment, and tax functions
C = 40 + 0.80YD
T = 10 + 0.10Y I = 38 + 0.15Y
Write the model in matrix form. Assume the government expenditure G0 = 110, export X0 = 40, and import M0 = 90. What are the equilibrium output, consumption, investment, and taxes in this economy?