6. Consider an economy, with no government spending or foreign trade, where households have the fol- lowing consumption function C = 1200 + .6Y. - 3 Planned investment is 900. (a) Graph aggregate expenditure, and depict equilibrium graphically. 5 points. (b) Find the equilibrium level of income. 5 points. (c) Calculate the equilibrium consumption and savings. 5 points. (d) What is the level of unplanned inventories when income is 60007 5 points. a ) y= AEplanned AEplanned = 2100+ 0.64 NAE planned Income consumption b. ) y= 2100 +0- by C.) C= 1200+0.6(5250) = 14350 -0.by - orby saving DAY = 2100 5250- 4350-900 0.4 0.4 Y = 5250 d.) AE planned = 2100+ 0.6 (60 00) = 5700 5250-5700=1450 unplatined inventories