He is perhaps best known for Determinants and Effects of Changes in the Stock of Money, 1875–1960, a work that sought to identify the "causal relationships between changes in money, prices and output."
Zu seinen bekanntesten Veröffentlichungen zählen Determinants and Effects of Changes in the Stock of Money, 1875-1960 eine Arbeit in der er „causal relationships between changes in money, prices and output“ untersucht.