Includes bibliographies.

Some aspects of optimal investment policy in an underdeveloped economy, by S. Chakravarty.--Optimum savings programme; a note, by J. C. Saigal.--Efficient, inefficient, and critical growth, by M. Inagaki.--Models of balanced and maximum growth in dualistic economies, by A. Qayum.--Some exercises with a simple model for world development planning, by B. Herman, L. B. M. Mennes, and J. G. Waardenburg.--Economic integration and the optimum international distribution of production, by H. C. Bos and A. Kuyvenhoven.--Trade flows and geographical distance, or the importance of being neighbours, by H. Linnenmann.--Imports from developing countries, a comparison between EEC, EFTA and USA, by F. P. Jansen and L. H. Janssen.--Stages in planning, by Y. B. De Wit.--The semi-input-output method under upper bounds, by P. A. Cornelisse and J. Versluis.--Factor intensities in Mexico with special reference to manufacturing, by G. K. Boon.--Export policy in Pakistan, by N. Islam.--Interindustry relations, L. H. Klaassen and A. C. Van Wickeren.--The optimal number of factories in a spatial market, by J. Serck-Hanssen.--Some reflections on the effectiveness of project versus plan aid, by E. J. Schreuel.--From marco to micro-and back, by J. C. Ramaer.