This paper discusses the role played by NY Fed economist Robert Roosa and Paul Samuelson in the emergence of the literature on credit rationing at the beginning of the 1950s. I argue that, contrary to the story one can find in the technical surveys, an intermediate step between Roosa and the...

This paper conjectures that economics has changed profoundly since the 1970s and that these changes involve a new understanding of the relationship between theoretical and applied work. Drawing on an analysis of John Bates Clark medal winners, it is suggested that the discipline became more...