The first volume of this critical history covers the social, political, and theoretical forces behind the development of Marxian economics from Marx's death in 1883 until 1929, the year marking the onset of Stalin's "revolution from above," which subsequently transformed the Soviet Union into a modern superpower. During these years, Marxists in both Russia and Germany found their economic ideas inextricably linked with practical political problems, and treated theory as a guide to action. This book systematically examines the important theoretical literature of the period, including insightful works by political functionaries outside academia--journalists, party organizers, underground activists, and teachers in the labor movement--presented here as the primary forgers of Marxian economic thought. Beginning with Engels's writings, this book analyzes the work of leading Marxist economists in the Second International, then concludes with a review of the intellectual movements within the Marxian political economy during the 1920s. A second volume treating the period from 1929 to the present will follow. Originally published in 1989. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.