cw_system: States (Correlates of War System)

In isard: Overflow Data for Quantitative Peace Science Research

States (Correlates of War System)

Description

These are the independent states in the Correlates of War system.

Usage

cw_system

Format

A data frame with the following 5 variables.

ccode

a numeric vector for the Correlates of War state code

cw_abb

a character vector for the state abbreviation

cw_name

a character vector for the state name

start

a date for system entry

end

a date for system exit

Details

The end column is current as of Dec. 31, 2016. That date is reflected in the end column for states still active today.

References

Gleditsch, Kristian S. and Michael D. Ward. 1999. "A Revised List of Independent States since the Congress of Vienna." International Interactions 25(4): 393–413.

Examples

str(cw_system)
head(cw_system)

isard documentation built on April 11, 2025, 6:19 p.m.