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It serves as the basis for the most widely used indicator of national capability, CINC (Composite Indicator of National Capability) and covers the period 1816-2001.The National Material Capabilites data set contains annual values for total population, urban population, iron and steel production, energy consumption, military personnel, and military expenditure of all state members, currently from 1816-2001. The widely-used Composite Index of National Capability (CINC) index is based on these six variables and included in the data set.\n<br /><br />\r <b>In any papers or publications that utilize this data set, users are asked to give the version number and cite an article of record for the data set, as follows:</b><br />\r \r       Bibliography Entry: Singer, J. David, Stuart Bremer, and John Stuckey. (1972). \"Capability Distribution, Uncertainty, and Major Power War, 1820-1965.\" in Bruce Russett (ed) Peace, War, and Numbers, Beverly Hills: Sage, 19-48."}}]},{"typeName":"publication","multiple":true,"typeClass":"compound","value":[{"publicationCitation":{"typeName":"publicationCitation","multiple":false,"typeClass":"primitive","value":"<b>The above article, the first NMC data set assembled in the 1960s, described and analyzed original data on major powers only. Following this, the data set was expanded to cover the entire interstate system as discussed in:</b><br />J. David Singer. 1987. \"Reconstructing the Correlates of War Dataset on Material Capabilities of States, 1816-1985.\" International Interactions, 14: 115-32. <a href=\"http://www.correlatesofwar.org/COW_bibliographic_essay.htm\"  target= \"_new\"> information available here</a>"}}]},{"typeName":"notesText","multiple":false,"typeClass":"primitive","value":"Subject: STANDARD DEPOSIT TERMS 1.0  Type: DATAPASS:TERMS:STANDARD:1.0  Notes: This study was deposited under the of the Data-PASS standard deposit terms. A copy of the usage agreement is included in the file section of this study.;"},{"typeName":"producer","multiple":true,"typeClass":"compound","value":[{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"Paul F. Diehl (Director)"},"producerAffiliation":{"typeName":"producerAffiliation","multiple":false,"typeClass":"primitive","value":"University of Illinois, Urbana-Champaign"},"producerURL":{"typeName":"producerURL","multiple":false,"typeClass":"primitive","value":"http://www.pol.uiuc.edu/people/faculty/members/diehl.html"}},{"producerName":{"typeName":"producerName","multiple":false,"typeClass":"primitive","value":"Scott Bennett (Associate Director)"},"producerAffiliation":{"typeName":"producerAffiliation","multiple":false,"typeClass":"primitive","value":"Pennsylvania State University"}}]},{"typeName":"distributor","multiple":true,"typeClass":"compound","value":[{"distributorName":{"typeName":"distributorName","multiple":false,"typeClass":"primitive","value":"Murray Research Archive"},"distributorURL":{"typeName":"distributorURL","multiple":false,"typeClass":"primitive","value":"http://www.murray.harvard.edu"},"distributorLogoURL":{"typeName":"distributorLogoURL","multiple":false,"typeClass":"primitive","value":"http://murray.harvard.edu/files/murray/banner146x48.png"}}]},{"typeName":"distributionDate","multiple":false,"typeClass":"primitive","value":"2005"},{"typeName":"dateOfDeposit","multiple":false,"typeClass":"primitive","value":"2007"},{"typeName":"timePeriodCovered","multiple":true,"typeClass":"compound","value":[{"timePeriodCoveredStart":{"typeName":"timePeriodCoveredStart","multiple":false,"typeClass":"primitive","value":"1816"},"timePeriodCoveredEnd":{"typeName":"timePeriodCoveredEnd","multiple":false,"typeClass":"primitive","value":"2001"}}]},{"typeName":"relatedMaterial","multiple":true,"typeClass":"primitive","value":["<a href=\"http://www.correlatesofwar.org/\"  target= \"_new\"> related material available here</a>"]}]}},"files":[{"description":"The main data set above contains data on six individual components. 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