 These researchers including Gérard Debreu, Truman Bewley, Hildegard Dierker, Birgit Grodal, David Schmeidler, Karl Vind and Werner Hildenbrand gained CORE international recognition in the field of mathematical economics.The time of the Ford grant coincided with the epoch of "Neo-Walrasian" economics at CORE, which also started the differentiation of disciplines.While initially, the research fields were integrated, at that time, there appeared the complementary, but independent disciplines of mathematical economics, operations research and econometrics.