The supply Side (a) State the Ws and Ps functions.1. (b) Derive the Ps equation with and without tax wedge. (c)Explain all the factors affecting wS and PS. '(a) Derive PC curve mathematically (from wage inflation and price inflation equations) andgraphically. (b) Using lS, WS-PS and PC curves, explain the effect of a negative aggregate demand shock inthe absence of stabilizing policies. (c) Using lS, WS-PS and PC curves, explain the effect of an increase in union power