The Planned Aggregate Expenditures (PAE) curve is given by PAE = C + Iᵈ + G where consumption spending is given by C = A + bYᵈ, disposable income Yᵈ = Y - T - tY, where Y is output, T is lump-sum taxes, t is the proportional tax rate and b is the marginal propensity to consume. Planned investment is given by Iᴾ and government spending is G. Planned investment and government spending do not depend on Y. Suppose A = 100, b = 0.8, T = 50, t = 0.25, Iᴾ = 100 and G = 140. What is the multiplier for this economy?