A Poisson model of incidents of international terrorism in the United States

Abstract

Various haphazard, and often uncoordinated, efforts have been devoted to discouraging and combatting terrorism. Unfortunately, there has been a noticeable lack of quantitative studies of the problem of terrorism. Nevertheless, it can be expected that the problem of international terrorism will eventually be a focus for operations researchers. A factor fundamental to any OR study is an understanding of the underlying generating process for incidents of terrorism. Based on incidents of terrorism from 1968 to 1974, this paper notes that the Poisson is a good model for the occurrence of incidents of international terrorism in the United States. Results of both chi‐square and Kolmogorov‐Smirnov tests are presented. Finally, an unusual result, inconsistent with popular beliefs, is noted.     

Reviews

Arabic Edition of the British Council Map of Europe and the Middle East. Scale 1: 11,000,000. Royal Geographical Society

Iraq Irrigation Handbook: Part I. Euphrates. Compiled by Ahmed Sousa, under the direction of J. D. Atkinson. Published at Baghdad by the Government of Iraq, 1944. 10” × 7”. Pp. in, with 35 tables, 18 figures and 1 plate, also, in a portfolio 15” × 14”, 16 other plates. Price not stated.

Jenghis Khan. By W. Yan. Hutchinson International Authors, Ltd. 9s. 6d.

From Tunisia to Normandy. By Major‐General H. Rowan‐Robinson, C.B., C.M.G., D.S.O. Hutchinsoh.

Defence is Our Business. By Brigadier J. G. Smyth, V.C., M.C. Hutchinson and Co. 10s. 6d.

Anna and the King of Siam. By Margaret Landon. Illustrated by Margaret Ayer. John Day Co., New York. Pp. 391.

The Modern Prison System of India. By Lieut.‐Colonel F. A. Barker, C.I.E., O.B.E., M.A., M.D., B.C., I.M.S. (Retd.).

Fabian Colonial Essays. With an Introduction by A. Creech Jones, M.P., and edited by Dr. Rita Hinden. Geo. Allen and Unwin. Pp. 261. 8s. 6d. 1945.

Modern Exploration. F. Kingdon Ward. 124 pp. Published by Jonathan Cape at 6s.     

Japan's rights in Manchuria

The Chinese ‐ a Study of a Hong Kong Community. By Cornelius Osgood. University of Arizona Press, Tucson, Arizona, 1976 (3 vols.). Pp. 1264. Preface. Appendix. Illus‐. Index. $45.00.

The Government and Politics of Hong Kong. By N. J. Miners. Oxford University Press (East Asian Social Science Monographs), Hong Kong 1975; New York, Melbourne, London, 1976. Pp. xiv+288. Appendices, Bibliog. Index. £8.50 (£5.95 paperback).

Chinese Labour under British Rule. By Joe England and John Rear. Oxford University Press (East Asian Social Science Monographs) Hong Kong, 1975; New York, Melbourne, London, 1976. Pp. xvi+368. Appendices. Index. £10.00 (£7.50 paperback).     

Film and lantern lectures

The Dutch East Indies. By Amry Vandenbosch. University of California Press. 1941. (Second Edition.)

Wanderer Between Two Worlds: An Autobiography. By Norman Bent‐wich. 8/1/2>” x 5/3/4>”. Pp. vii+358. Kegan Paul, Trench, Trübner and Co., Ltd. 12s. 6d.

Gertrude Bell. By M. R. Ridley. Blackie. 206 pp. Map. Four illustrations. 3s. 6d.

Modern Iran. By L. P. Elwell‐Sutton. Pp. xii+234. Illustrations, maps and plans. Routledge. 1941. 12s. 6d.

Ruz‐gar i Nau. A quarterly illustrated magazine in Persian. No. 2, Autumn, 1941. New York: Doubleday, Doran and Co., Ltd.; London: Hodder and Stoughton. is. net or 20 cents.

Turkey and Britain, is.

This Impertinence. By Peter Arnott. Jenkins. 12s. 6d

Soviet Asia : Its Records and its Problems. By E. S. Bates. Pp. 191 and a map. Jonathan Cape. 8s. 6d.

Green Prison. Twenty Years in Thailand. By W. Leigh Williams. 8/1/2>” x 6”. Pp. 352. Illustrations. London. Herbert Jenkins. 12s. 6d.

The Earth is the Lord's. A novel by Taylor Caldwell. Pp. 400. Collins. 19.41. 9s. 6d.

Genius of Friendship:T. E. Lawrence. By Henry Williamson. 10/1/4>” x 6/3/4>”. Pp. 78. Faber and Faber. 12s. 6d.     

A Review of: “Social Decision Making: Social Dilemmas,Social Values,and Ethical Judgments Edited by Roderick M. Kramer,Ann E. Tenbrunsel,and Max H. Bazerman”

ABSTRACT

Our ability to interpret, generalize, and build theory across public service motivation (PSM) studies is limited by lack of knowledge regarding the equivalence of different PSM measures that researchers frequently use. While past research has given considerable attention to validating multidimensional measures of PSM, this study investigates the psychometric properties of the global measures that have been used to provide much of the empirical evidence on PSM. Building on the lessons of other research using global and multidimensional measures, we first discuss the strengths and weaknesses of existing global measures of PSM relative to those of the multidimensional measures. After highlighting the potential merit of global scales, we then provide empirical justification for global scales. Using five different data sets to compare commonly used global measures of PSM, our findings suggest that these different measures are not only highly correlated with each other but also display a similar pattern and strength of relationships with important correlates of PSM. These findings suggest that these measures do tap into the same conceptual space and help validate our continued reliance on empirical studies that have used different measures to build our understanding of PSM.