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Dyadic and Multilateral Events, 1948-1970 (ICPSR 5403)

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This data collection contains information on 8,383 dyadic and multilateral events among executive actors from 31 nations in the period 1948-1970. Data are provided for the date of event, number and code names of countries involved in event, and intensity of event. Events are coded on scale B of the Moses-Brody conflict-cooperation scale, which runs from events of great cooperation to events of intense conflict.

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Study Description


Hughes, Barry, and P. Terrence Hopmann. Dyadic and Multilateral Events, 1948-1970. ICPSR05403-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1999. http://doi.org/10.3886/ICPSR05403.v1

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Scope of Study

Subject Terms:   arms race, conflict, international agreements, international conflict, international relations, political leaders, treaties

Geographic Coverage:   Albania, Austria, Belgium, Bulgaria, Canada, China (Peoples Republic), Czechoslovakia, Denmark, France, Germany, Global, Greece, Hungary, Iceland, Italy, Luxembourg, Mongolia, Netherlands, North Korea, Norway, Poland, Portugal, Romania, Soviet Union, Sweden, Switzerland, Turkey, United Kingdom, United States, Vietnam (Socialist Republic), Yugoslavia

Time Period:  

  • 1848--1970

Universe:   A total of 8,383 dyadic and multilateral international events among executive actors from 31 nations in the period 1948-1970.

Data Types:   event/transaction data


Data Source:



Original ICPSR Release:  

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