Convertibility of the U.S. dollar to gold ended on August 15, 1971. The divergence could be attributed to the devaluation that has been happening since. See '

Convertibility of the U.S. dollar to gold ended on August 15, 1971. The divergence could be attributed to the devaluation that has been happening since. See 'Figure A': https://www.epi.org/publication/understanding-the-historic-divergence-between-productivity-and-a-typical-workers-pay-why-it-matters-and-why-its-real/ https://www.epi.org/publication/understanding-the-historic-d...