These are directed dyadic dispute year data derived from the Correlates of War (CoW) Militarized Interstate Dispute (MID) project. Data are from version 5.0.
Format
A data frame with 11390 observations on the following 18 variables.
dispnuma numeric vector for the CoW-MID dispute number
ccode1a numeric vector for the focal state in the dyad
ccode2a numeric vector for the target state in the dyad
yeara numeric vector for the dispute-year
dispongoinga numeric vector for whether there was a dispute ongoing in that year
disponseta numeric vector for whether it was the onset of a new dispute (or new participant-entry into a recurring dispute)
sidea1is
ccode1on side A of the dispute?sidea2is
ccode2on side A of the dispute?fatality1a numeric vector for the overall fatality level of
ccode1in the disputefatality2a numeric vector for the overall fatality level of
ccode2in the disputefatalpre1a numeric vector for the known fatalities (with precision) for
ccode1in the disputefatalpre2a numeric vector for the known fatalities (with precision) for
ccode2in the disputehiact1a numeric vector for the highest action of
ccode1in the disputehiact2a numeric vector for the highest action of
ccode2in the disputehostlev1a numeric vector for the hostility level of
ccode1in the disputehostlev2a numeric vector for the hostility level of
ccode2in the disputeorig1is
ccode1an originator of the dispute?orig2is
ccode2an originator of the dispute?
Details
The process of creating these is described at one of the references below. Importantly, these data are somewhat
"naive." That is: they won't tell you, for example, that Brazil and Japan never directly fought each other during World War II.
Instead, it will tell you that there were two years of overlap for the two on different sides of the conflict and that the highest
action for both was a war. The data are thus similar to what the EUGene program would create for users back in the day. Use these
data with that limitation in mind.
References
Miller, Steven V. 2021. "How to (Meticulously) Convert Participant-Level Dispute Data to Dyadic Dispute-Year Data in R." URL: http://svmiller.com/blog/2021/05/convert-cow-mid-data-to-dispute-year/
Palmer, Glenn, and Roseanne W. McManus and Vito D'Orazio and Michael R. Kenwick and Mikaela Karstens and Chase Bloch and Nick Dietrich and Kayla Kahn and Kellan Ritter and Michael J. Soules. 2021. "The MID5 Dataset, 2011–2014: Procedures, coding rules, and description" Conflict Management and Peace Science.