C zh - G A E D z(1- t)h 1 H B F -G The consumer's budget constraint says that consumption C is constrained by after-tax income (1-t)Y , so C = (1 -t)Y . Substituting into this the production function Y = zN and employment N = h - 1, this is Williamson equ. (5.11): C =z(1 - t)(h - 1). (a) What is the expression for the vertical intercept (point D in Fig. 5.14)? (b) What is the expression for the slope? c) state this in terms of the wage w