4. Suppose that there is a closed economy with C=300+0.BY 1:100 6:200 A. Calculate the government expenditure multiplier. B. What is the equilibrium level of output? C. At the equilibrium level of output in B), what are the values of consumption and savings? D. Base on the following descriptions of crowding out effect, (1) every $10 changes in G leads $5 changes in Md; (2) interest rate (r) changes by 1% resulting from every $5 changes in Md; (3) interest rate changes by 1%, investment changes by $3; Find out the nal change of equilibrium output if government would like to increase government spending by $100