Reviews

CHANGING PERSPECTIVES IN BRITISH FOREIGN POLICY. Kenneth Younger. Chatham House Essays: 7. London, Oxford University Press, 1964. Pp. 139. 15/9.

BRITISH EMIGRATION TO AUSTRALIA. R. T. Appleyard. Australian National University, Canberra, 1964. Pp. xiii + 255. £2/17/6.

BRITAIN AND THE EUROPEAN COMMUNITY 1955–1963. Miriam Camps. London, Oxford University Press, 1964. Pp. x + 547. £A4.14.6.

INTERNAL WAR. Harry Eckstein (ed.). Glencoe, The Free Press, 1964. Pp. 339. $6.50.

MODERN GUERRILLA WARFARE. Franklin Mark Osanka (ed.). Glencoe, The Free Press, 1962. Pp. xxii + 519, bibliog.

MALAYSIA. K. G. Tregonning. Cheshire for the Australian Institute of International Affairs, 1964. Pp. 98. 13/6.

MALAYSIA; A SURVEY. Wang Gungwu (ed.). Melbourne, F. W. Cheshire, 1964. Pp. 466. £5.

SINGAPORE AND MALAYSIA. Milton E. Osborne. Data Paper: Number 53, Southeast Asia Program, Cornell University, 1964. Pp. 115. $2.50.

SOUTHEAST ASIAN UNIVERSITY. A COMPARATIVE ACCOUNT OF SOME DEVELOPMENT PROBLEMS. T. H. Silcock. Durham, North Carolina, Duke University Press, 1964. Pp. xiii + 194. $6.

CHINA. K. S. Latourette. New Jersey, Prentice‐Hall, 1964. Pp. viii + 152. $1.95.

MODERN CHINA. Edited by A. Feuerwerker. New Jersey, Prentice‐Hall, 1964. Pp. vi + 186. $1.95.

CEYLON. S. Arasaratnam. New Jersey, Prentice‐Hall, 1964. Pp. vi + 182. $1.95.

TRADITIONAL INDIA. Edited by O. L. Chavarria‐Aguilar. New Jersey, Prentice‐Hall, 1964. Pp. vi + 153. $1.95.

DEFIANCE IN MANCHURIA: THE MAKING OF JAPANESE FOREIGN POLICY, 1931–1932. Ogata Sadako. Berkeley and Los Angeles, Calif., 1964. Pp. xvi + 259, bibliog. $5, Aust. 65/6.

THE MILITARY AND SOCIETY IN LATIN AMERICA. John J. Johnson. Stanford University Press, California, 1964. x + 308 pp. $7.00.     

Reviews

THE MODERN WORLD: A HISTORY OF OUR TIME. Vol. I. Gordon Greenwood. Angus and Robertson, Sydney, 1963. 791 pp. 63s.

THE COMMONWEALTH AND SUEZ. A DOCUMENTARY SURVEY. Selected, edited and with commentaries by James Eayrs. London, Oxford University Press, 1964. Pp. xxiv + 483. Australian price 95/‐.

THE AUSTRALIAN ECONOMY. A VOLUME OF READINGS. H. W. Arndt and W. M. Corden (eds.). Melbourne, F. W. Cheshire, 1963. Australian price 30/‐.

POLAND, BRIDGE FOR THE ABYSS? AN INTERPRETATION OF DEVELOPMENTS IN POST‐WAR POLAND. Richard Hiscocks. London, Oxford University Press, 1963. viii, 359 pp. Map. Australian price 65/‐.

NEW NATIONS IN A DIVIDED WORLD. THE INTERNATIONAL RELATIONS OF AFRO‐ASIAN STATES. Kurt London (ed.). London, Praeger, 1963. Pp. 350. Sterling 45/‐ (cloth), 16/‐ (paper).

NEW GUINEA'S FIRST NATIONAL ELECTION. Edited by Murray C. Groves. A Symposium reprinted from the Journal of the Polynesian Society, Volume 73, No. 2, June 1964. Price 5/‐ (N.Z.).

RELIGION AND POLITICS IN RURAL CENTRAL JAVA. Robert R. Jay. Cultural Report Series No. 12, Southeast Asia Studies, Yale University. 1963.

GOVERNMENT, POLITICS, AND SOCIAL STRUCTURE IN LAOS. A STUDY OF TRADITION AND INNOVATION. Joel M. Halpern. Monograph Series No. 4. Southeast Asia Studies, Yale University. 1964. Pp. ix + 199, map, 15 tables.

HRAF handbook on Laos (Laos: its people, its society, its culture ed. F. M. LeBar and A. Suddard. HRAF Press, New Haven, 1960) to which Dr Halpern was a contributor.     

Dealing with Timing and Synchronization in Opportunities for Joint Activity Participation. 公共活动参与机会中实时性与同步性处理

The ability of people to access opportunities offered by the built environment is circumscribed by various sets of space–time constraints, including the requirements to meet other persons at particular times and places to undertake activities together. While models of space–time accessibility recognize that joint activities may constrain the performance of activities in space and time, their specifications do not explicitly acknowledge the opportunities that individuals of a group have for joint activity participation. Therefore, this article focuses on joint activity participation and argues that collective activity decisions are the outcome of a complex process involving various aspects of timing, synchronization, and social hierarchy. The utility‐theoretic model proposed here quantifies the extent to which opportunities can be jointly accessed by a particular group of people within a specific time period. Central to the approach are three key variables: the attractiveness of an opportunity, the time available for activity participation, and the travel time to an activity location. Because of the multiperson character of joint activities, the determination of these variables is subject to individual preferences, privileges, and power differentials within a group. Specific attention is given to how time‐of‐day and synchronization effects influence the opportunities accessible to a group of individuals. The impact of these factors on joint accessibility is illustrated by a real‐world example of an everyday rendezvous scenario. The outcomes of a simulation exercise suggest that time‐of‐day and synchronization effects significantly affect the benefits that can be gained from opportunities for joint activities.