The model of labor relations that prevailed in the Western world after World War II was formally proposed in 1958 by J. Dunlop.¹ In 1960, a synthesis of the prevailing thought on the subject was presented in a work by Kerr, Dunlop, Harbison, and Myers. This model was based primarily on the experience of the United States, which was presented at the time as the "best practice" to be emulated in other countries. It was closely associated with the modes of mass production structured according to the Fordist-Taylorist principles analyzed in previous works.