The 2014, 2011, and 2010 releases of the Unified Democracy Scores by Pemstein, Meserve, and Melton (2010).

uds_2014

uds_2011

uds_2010

Format

An object of class tbl_df (inherits from tbl, data.frame) with 9850 rows and 12 columns.

An object of class tbl_df (inherits from tbl, data.frame) with 9137 rows and 12 columns.

An object of class tbl_df (inherits from tbl, data.frame) with 7558 rows and 12 columns.

Source

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.

Pemstein, Daniel, Stephen A. Meserve, and James Melton. 2013. "Replication data for: Democratic Compromise: A Latent Variable Analysis of Ten Measures of Regime Type." In: Harvard Dataverse. http://hdl.handle.net/1902.1/PMM

Details

uds_country

The name of the country in the UDS release

year

Calendar year.

uds_ccode

The correlates of war numeric code, as in the original UDS release. This is different for Yugoslavia/Serbia from the actual COW code after 2006. Use the cown variable instead for merging with COW-indexed data.

mean

The posterior mean of the latent variable in the UD release.

sd

The posterior standard deviation of the latent variable in the UD release.

median

The posterior median of the latent variable in the UD release.

pct025

Unified democracy score posterior 2.5 percentile.

pct975

Unified democracy score posterior 97.5 percentile.

Standard descriptive variables (generated by this package)

extended_country_name

The name of the country in the Gleditsch-Ward system of states, or the official name of the entity (for non-sovereign entities and states not in the Gleditsch and Ward system of states) or else a common name for disputed cases that do not have an official name (e.g., Western Sahara, Hyderabad). The Gleditsch and Ward scheme sometimes indicates the common name of the country and (in parentheses) the name of an earlier incarnation of the state: thus, they have Germany (Prussia), Russia (Soviet Union), Madagascar (Malagasy), etc. For details, see Gleditsch, Kristian S. & Michael D. Ward. 1999. "Interstate System Membership: A Revised List of the Independent States since 1816." International Interactions 25: 393-413. The list can be found at http://privatewww.essex.ac.uk/~ksg/statelist.html.

GWn

Gleditsch and Ward's numeric country code, from the Gleditsch and Ward list of independent states.

cown

The Correlates of War numeric country code, 2016 version. This differs from Gleditsch and Ward's numeric country code in a few cases. See http://www.correlatesofwar.org/data-sets/state-system-membership for the full list.

in_GW_system

Whether the state is "in system" (that is, is independent and sovereign), according to Gleditsch and Ward, for this particular date. Matches at the end of the year; so, for example South Vietnam 1975 is FALSE because, according to Gleditsch and Ward, the country ended on April 1975 (being absorbed by North Vietnam). It is also TRUE for dates beyond 2012 for countries that did not end by then, depsite the fact that the Gleditsch and Ward list has not been updated since.