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"This study attempts to trace the determinants of rural out-migration for a typical portion of the Canadian Prairies, namely agricultural Manitoba. In concentrating on the 'push' factors responsible for gross out-migration over the period 1966-71, the study considers aspects of several dimensions: spatial, economic, social, ethnic and demographic. However, in order to explore the ramifications of interaction between migration and these multifaceted factors, a model is construed which dwells not only on the forces responsible for out-migration, per se, but also on those capable of regulating rural economic structure and agricultural welfare."  相似文献   
896.
The literature on the provision and distribution of urban public services has recently stressed the study of impacts rather than outputs. Impacts are conventionally conceived as the final stage of an orderly production process. Benefits are produced only after impacts are achieved. This paper argues, to the contrary, that costs and benefits stem from each stage of the public service production process. Consequently, a focus on the impact stage alone can be grossly misleading.  相似文献   
897.
The author discusses changing views on the world food problem since 1945. "The extent of the problem has been a matter of debate as hunger cannot be directly measured; estimated minimum requirements for energy have been reduced since 1945 and the causes of malnutrition reappraised. World food production has kept up with population growth since 1945, as it has in all major regions except Africa. But when individual countries are considered, food output per head has been declining since 1961-5 in many countries in Africa and Asia. Food output has been increased in the developing countries by expanding the area under cultivation and by increasing yields." In addition the author concludes that "the Green Revolution has however not achieved early expectations and has had some adverse economic and social consequences. Because world food output per caput has risen considerably since 1945, some have argued that the world food problem is one of distribution, not production. Data on food output per caput suggest this is not always so."  相似文献   
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Book reviews     
Mohammed Ayoob, The Middle East in World Politics. Croom Helm Ltd., London, 1981, pp. 217. $10.95

Charlotte S.M. Girard, Canada in World Affairs, Volume XIII, 1963–1965. Canadian Institute of International Affairs, Toronto, 1980, pp. 372. $Can27.00 (cloth), $Can10.00 (paper).

Morton A. Kaplan, Towards Professionalism in International Theory: Macrosystem Analysis. The Free Press, New York, 1979, pp ix + 182. $US17.95.

Holly Sklar (ed.), Trilateralism The Trilateral Commission and Elite Planning for World Management. Black Rose Books, Montreal, 1980, pp. 604. No price given.

Michael Mandelbaum, The Nuclear Question: The United States and Nuclear Weapons 1946–1976. Cambridge University Press, Cambridge, 1979, pp. 276. £ 12.50.

Graham Kearns, Arms for the Poor. Strategic and Defence Studies Centre, Australian National University, Canberra, 1980, pp. 131. $7.00.

John G. Keliher, The Negotiations on Mutual and Balanced Force Reductions: The Search for Arms Control in.Central Europe. Pergamon Press, New York, 1980, pp. 204. No price given.

Michael Sexton, War for the Asking: Australia's Vietnam Secrets. Penguin Books Australia, Ringwood, 1981, pp.212. $5.95.

Ian McGibbon, Blue‐Water Rationale: The Naval Defence of New Zealand 1914–1942. Government Printing Office, Wellington, 1981, pp xxi + 446. $NZ45.00.

Erhard Fordran and Paul J. Friedrich (eds.), Rüstungskontrolle und Sicherheit in Europa. Europa Union Verlag GMBH, Bonn, 1979, pp. 374. No price given.

Alan Rix, Japan's Economic Aid. Croom Helm, London, 1980, pp. 286. £14.95.

K.H. Digby, Lawyer in the. Wilderness, Data Paper No. 114, Southeast Asia Program, Cornell University, Ithaca, N.Y., 1980, pp. xi + 102. $US5.75.

R.B. Smith and W. Watson (eds.), Early South East Asia: Essays in Archaeology, History and Historical Geography. Oxford University Press, Melbourne, 1979, pp. xv + 561. $56.00.

Allan Bollard, Agricultural Project Design and Evaluation in an Island Community, Australian National University Development Studies Centre Monograph No. 15, 1979, pp. xiii + 228. $8.00.

Philip J. Eldridge, Indonesia and Australia: The Politics of Aid and Development since 1966. Australian National University, Development Studies Centre Monograph No. 18, 1979, pp. xviii + 233. $8.00.

Paul Harrison, The Third World Tomorrow: a report from the battlefront in the war against poverty. Penguin Books, Harmondsworth, 1980, pp. 380. $7.95.

R. T. Shand and H. V. Richter (eds.), International Aid: Some Political, Administrative and Technical Realities. Development Studies Centre Monograph No. 16, The Australian National University Press, Canberra, 1979, pp. 278. $9.00.

Seweryn Bialer, Stalin's Successors. Leadership, Stability and Change in the Soviet Union. Cambridge University Press, Cambridge, 1980, pp. 312. £12.50.  相似文献   

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