These are democracy data for all Correlates of War state system members.
data
Format
A data frame with 18289 observations on the following 5 variables.
gwcode: the Gleditsch-Ward system code
year: a numeric vector for the year
v2x_polyarchy: the Varieties of Democracy "polyarchy" estimate
polity2: the the polity2 score from the Polity project
xm_qudsest: an extension of the Unified Democracy Scores (UDS) estimates, made possibly by the QuickUDS package from Xavier Marquez.
gwcode_democracy
Details
Missing data connote data that are unavailable for various reasons. Either there is no democracy data to code or, in the case of the Polity project, the state system member is outright not evaluated for the variable.
The Polity data are from 2017. The Varieties of Democracy data are version 10. Xavier Marquez' QuickUDS estimates (i.e. extensions of Pemstein et al. (2010)) come from a package Marquez makes available on his Github (https://github.com/xmarquez/QuickUDS).
References
Coppedge, Michael, John Gerring, Carl Henrik Knutsen, Staffan I. Lindberg, Jan Teorell, David Altman, Michael Bernhard, M. Steven Fish, Adam Glynn, Allen Hicken, Anna Luhrmann, Kyle L. Marquardt, Kelly McMann, Pamela Paxton, Daniel Pemstein, Brigitte Seim, Rachel Sigman, Svend-Erik Skaaning, Jeffrey Staton, Agnes Cornell, Lisa Gastaldi, Haakon Gjerlow, Valeriya Mechkova, Johannes von Romer, Aksel Sundtrom, Eitan Tzelgov, Luca Uberti, Yi-ting Wang, Tore Wig, and Daniel Ziblatt. 2020. "V-Dem Codebook v10" Varieties of Democracy (V-Dem) Project.
Marshall, Monty G., Ted Robert Gurr, and Keith Jaggers. 2017. "Polity IV Project: Political Regime Characteristics and Transitions, 1800-2017." Center for Systemic Peace.
Marquez, Xavier, "A Quick Method for Extending the Unified Democracy Scores" (March 23, 2016). tools:::Rd_expr_doi("10.2139/ssrn.2753830")
Pemstein, Daniel, Stephen Meserve, and James Melton. 2010. "Democratic Compromise: A Latent Variable Analysis of Ten Measures of Regime Type." Political Analysis 18(4): 426-449.