The Attitude of the City towards its Street Railways, 29 Results Attained under the Franchise System, . The Difficulties of Municipal Ownership, 35 ECONOMIC STUDIES VOL. I. No. 1. SIX NUMBERS PER YEAR. THE THEORY OF ECONOMIC PROGRESS JOHN B. CLARK, PH.D. THE RELATION OF CHANGES IN THE VOLUME OF THE FRANCIS A. WALKER, LL.D. APRIL, 1896 PUBLISHED FOR THE AMERICAN ECONOMIC ASSOCIATION BY MACMILLAN & COMPANY NEW YORK LONDON: SWAN SONNENSCHEIN & Co. THE THEORY OF ECONOMIC PROGRESS JOHN B. CLARK, PH.D. Professor of Political Economy in Columbia University. |