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Rosa Luxemburg, Oskar Lange and Michal Kalecki made important contributions to twentieth century political economy that guided the thinking of their student Tadeusz Kowalik. These contributions are re-examined by renowned economists, highlighting the common themes in their political economy and the neglected aspects of their work.

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Introduction; Riccardo Bellofiore, Ewa Karwowski and Jan Toporowski 1. Micha? Kalecki and Rosa Luxemburg on Marx´s Schemes of Reproduction: Two Incisive Interpreters of Capital; G.C. Harcourt and Peter Kriesler 2. The Realization Problem: A Reappraisal of Kalecki and Luxemburg Discussion on the Schemes of Reproduction; Noemi Levy-Orlik 3. Luxemburg as an Economist: the Unique Challenge to Marx among Marxists; Gabriele Pastrello 4. Marxist Political Economy without Hegel: Contrasting Marx and Luxemburg to Plekhanov and Lenin; Paul Zarembka 5. Luxemburg and Kalecki: The actuality of Tadeusz Kowalik´ Reading of the Accumulation of Capital; Riccardo Bellofiore 6. Polish Marxian Political Economy and US Monopoly Capital Theory: The Influence of Luxemburg, Kalecki, and Lange on Baran and Sweezy and Monthly Review; John Bellamy Foster 7. When Science Meets Revolution: The Influence of Rosa Luxemburg on Oskar Lange´s Early Project (1931-1945; Roberto Lampa 8. Lange and Keynes; Jan Toporowski 9. The Walrasian Socialism of Oskar Lange; Meghnad Desai 10. Between Memory and Historical Inquiry: Kalecki and the Warsaw Centre of Research on Underdeveloped Economies: 1962-1968; Marcin Kula 11. The Price Mechanism and the Distribution of Income in Kalecki´s Economics and Post-Kaleckian Economics; Jo Michell 12. Financial Fragility and the Kalecki Principle under Expanded Reproduction; Andrew Trigg

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Ewa Karwowski, The School of Oriental and African Studies, University of London UK Riccardo Bellofiore, University of Bergamo Italy Jan Toporowski, The School of Oriental and African Studies, University of London UK G.C. Harcourt, The University of New South Wales Australia Peter Kriesler, The University of New South Wales Australia Noemi Levy-Orlik, Universidad Autonoma Metropolitana Mexico Gabriele Pastrello, University of Modena Italy Paul Zarembka, University at Buffalo USA John Bellamy Foster, University of Oregon USA Roberto Lampa, University of Salento Italy Meghnad Desai, Former Lecturer at the London School of Economics UK Marcin Kula, Warsaw University, Poland Jo Michell, The School of Oriental and African Studies, University of London UK Andrew Trigg, The Open University UK.

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