Irving Fisher of Yale, by J. P. Miller -- Irving Fisher and the theory of capital, by P. A. Samuelson -- Operational utility: the theoretical background and a measurement, by W. Fellner -- Extraordinary taxation and minimum sacrifice, by C. A. Hall, Jr. -- Intertemporal distribution and optimal aggregate economic growth, by T. C. Koopmans -- Distributed lags and unobserved components in economic time series, by M. Nerlove -- Price indexes and international price comparisons, by R. Ruggles -- On the computation of equilibrium prices, by H. Scarf -- Life cycle saving and balanced growth, by J. Tobin -- Quality theory and quantity policy, by H. C. Wallich.