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Dimensionality of Nations Project: Attributes of Nations and Behavior of Nation Dyads, 1950-1965 (ICPSR 5409)

Principal Investigator(s): Rummel, Rudolph J.


This study contains data on the economic, diplomatic, military, and social dyadic interactions among a selected sample of 182 nation-dyads in the years 1950, 1955, 1960, 1963, and 1965. Originally collected by the Dimensionality of Nations (DON) Project at the University of Hawaii, these data provide information on the behavioral dimensions of the interactions between the nations in the dyads. The dyads represent all of the paired relationships for 14 nations. Variables such as economic aid, official visits, treaties, co-participation in international conferences, exports, tourist visits, intergovernmental organizations, common membership in nongovernmental organizations, common blocs membership, and military alliances measure positive interactions or cooperative behavior between the nations. Other variables such as military actions, negative behavior, severance of diplomatic relations, expulsion or recall of diplomats and lesser officials, boycott or embargo, aid to subversive groups or enemies, accusations, protests, attacks on embassy, and lost territory from one nation to the other measure conflictual interactions. The variables are arranged by year and within year by dyad number.

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Study Description


Rummel, Rudolph J. DIMENSIONALITY OF NATIONS PROJECT: ATTRIBUTES OF NATIONS AND BEHAVIOR OF NATION DYADS, 1950-1965. Compiled by University of Hawaii, Dimensionality of Nations Project. ICPSR05409-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [producer and distributor], 1999. https://doi.org/10.3886/ICPSR05409.v1

Persistent URL: https://doi.org/10.3886/ICPSR05409.v1

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Scope of Study

Subject Terms:    diplomacy, economic aid, economic conditions, exports, international conflict, international cooperation, international relations, military alliances, military strength, tourism, treaties

Geographic Coverage:    Global

Time Period:   

  • 1950--1965

Universe:    A total of 14 nations in the period 1950-1965.

Data Type(s):    aggregate data

Data Collection Notes:

See also the related collection, DIMENSIONALITY OF NATIONS PROJECT: NATION ATTRIBUTE DATA, 1950-1965 (ICPSR 5020).


Data Source:

(1) United Nations publications, (2) University of Hawaii. Department of Political Science. "The Dimensionality of Nations Project." RESEARCH REPORT 65, and (3) Russett, Bruce M., David J. Singer, and Melvin Small. "National Political Units in the Twentieth Century: A Standardized List." THE AMERICAN POLITICAL SCIENCE REVIEW 62, 3 (1968), 935-950.


Original ICPSR Release:   1984-05-03

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