Suppose that the supply curve for school teachers is Ls=20,000 + 350w and the demand curve for school teachers is Ld= 100,000-150w, where L= the number of teachers and w=the daily wage. plot the demand and supply curves,what are the equilibrium wage and employment level in this market? Now suppose that at any given wage, 20,000 more workers are willing to work as school teachers, plot the new supply curve and find the new wage and employment level. why doesn't employment grow by 20,000?