This paper presents a model of unemployment and wage inflation based on Phillips curves estimated by age-sex-color groups. The model is estimated using data for the period 1949-1967 with projections for the period 1968-1973. The paper concludes that when allowances are made for changes in the age-sex-color composition of the labor force the standard Phillips curve framework is quite capable of explaining the 1968-1973 period without resorting to the notion of a "natural rate of unemployment" or a "long run Phillips curve."