Intergovernmental Organization Data, 1816-1964 (ICPSR 5520)
Principal Investigator(s): Wallace, Michael, University of Michigan; Singer, J. David, University of Michigan
This data collection describes the membership status of 148 nations in 237 inter-governmental organizations (IGO) that were in place between 1815 and 1964. Each nation is coded at five-year intervals for membership type in each listed IGO, such as full or associate membership, as well as for membership or non-membership in the international system.
Series: Correlates of War Project Series
Wallace, Michael, and J. David Singer. Intergovernmental Organization Data, 1816-1964. ICPSR05520-v2. ICPSR05520-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2015-01-19. http://doi.org/10.3886/ICPSR05520.v2
Persistent URL: http://doi.org/10.3886/ICPSR05520.v2
Scope of Study
Smallest Geographic Unit: country
Geographic Coverage: Global
Unit of Observation: nation, intergovernmental organization
Universe: A total of 148 nations in 237 inter-governmental organizations that were active in the period 1815-1964.
Data Types: administrative records data
Time Method: Longitudinal: Panel
Mode of Data Collection: record abstracts
Extent of Processing: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:
- Created variable labels and/or value labels.
- Checked for undocumented or out-of-range codes.
Original ICPSR Release: 1984-05-03
- 2015-01-19 SPSS, SAS, and Stata setup files, as well as SPSS and Stata system files, a SAS transport (CPORT) file, a tab-delimited data file, and an R data file have been added to the collection. The codebook was updated.
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