In 1935, Morgenstern published the article Perfect Foresight and Economic Equilibrium, after which his colleague Eduard Čech pointed him to an article of John von Neumann, Zur Theorie der Gesellschaftsspiele (1928).
År 1935 publicerade Morgenstern artikeln "Perfect Foresight and Economic Equilibrium", varefter en kollega till honom, Eduard Čech visade honom en artikel av John von Neumann, "Zur Theorie der Gesellschaftsspiele" (1928).