Data source: Marshall and Gurr
The Polity project is one of the most widely used data resources for studying regime change and the effects of regime authority. The Polity5 Project, which studies Political Regime Characteristics and Transitions from 1800-2018, is an annual, cross-national, time-series dataset which codes democratic and autocratic ''patterns of authority'' and regime changes in all independent countries with a total population greater than 500,000 in 2018 (167 countries in 2018).
When using this dataset, please cite as:
(Marshall & Gurr,
2020)
Browse variables and select them for download.
p_durable
Regime Durability: The number of years since the most recent regime change (defined by a three point change in the p_polity score over a period of three years or less) or the end of a transition perio ...
p_polity2
Revised Combined Polity Score: The polity score is computed by subtracting the p_autoc score from the p_democ score; the resulting unified polity scale ranges from +10 (strongly democratic) to -10 (st ...