Frank Knight and the Productivity of Capital: Another Piece of the Puzzle

Through the 1930s, Frank H. Knight engaged the economic profession in a prodigious exchange over the nature and productivity of capital. Knight's efforts here were driven by three significant objectives: first, that capital theory had to be able to explain the broad fact of capital accumulation and growth as actually experienced by progressive societies; second, that existing doctrines had to be purged of the flawed vestiges of the classical-Ricardian theory of production if any progress was to be had in achieving the first objective; third, and last, that an alternative theory of capital needed to provide an explanation of the productivity of capital consistent with the fulfillment of the first two tasks. Knight failed in the third task or, at best, left the task incomplete.