Polity data series

The Polity data series is a widely used data series in political science research.[1] The latest version, Polity V, contains coded annual information on the level of democracy for most independent states with greater than 500,000 total population and covers the years 18002018. Polity's conclusions about a state's level of democracy are based on an evaluation of that state's elections for competitiveness and openness, the nature of political participation in general, and the extent of checks on executive authority. For each year and country, a "Polity Score" is determined which ranges from -10 to +10, with -10 to -6 corresponding to autocracies, -5 to 5 corresponding to anocracies, and 6 to 10 to democracies.

Polity Score ranges from -10 to +10
minimum valuemaximum value
autocracies-10-6
anocracies-55
democracies610

Number of nations 18002003 scoring 8 or higher on the Polity IV scale, a measure of democracy.
World map showing findings from the Polity IV data series report for 2013.
World map showing findings from the Polity IV data series report for 2017.

The Polity study was initiated in the late 1960s by Ted Robert Gurr; it is now continued by Gurr's former student, Monty G. Marshall, and sponsored by the Political Instability Task Force (PITF). The PITF is funded by the Central Intelligence Agency.[2]

The 2002 paper "Conceptualizing and Measuring Democracy" claimed several problems with commonly used democracy rankings, including Polity, opining that the criteria used to determine "democracy" were misleadingly narrow.[3]

Scores for 2018

Country Democracy Autocracy Polity datasets IV number[4][5] Polity datasets IV category
 Afghanistan12-1Closed Anocracy
 Albania909Democracy
 Algeria312Open Anocracy
 Angola24-2Closed Anocracy
 Argentina909Democracy
 Armenia707Democracy
 Australia10010Full Democracy
 Austria10010Full Democracy
 Azerbaijan07-7Autocracy
 Bahrain010-10Autocracy
 Bangladesh06-6Autocracy
 Belarus07-7Autocracy
 Belgium808Democracy
 Benin707Democracy
 Bhutan707Democracy
 Bolivia707Democracy
 Botswana808Democracy
 Brazil808Democracy
 Bulgaria909Democracy
 Burkina Faso716Democracy
 Burundi23-1Closed Anocracy
 Cambodia04-4Closed Anocracy
 Cameroon15-4Closed Anocracy
 Canada10010Full Democracy
 Cape Verde10010Full Democracy
 Central African Republic716Democracy
 Chad13-2Closed Anocracy
 Chile10010Full Democracy
 China07-7Autocracy
 Colombia707Democracy
 Comoros03-3Closed Anocracy
Congo Brazzaville04-4Closed Anocracy
Congo Kinshasa14-3Closed Anocracy
 Costa Rica10010Full Democracy
 Croatia909Democracy
 Cuba16-5Closed Anocracy
 Cyprus10010Full Democracy
 Czech Republic909Democracy
 Denmark10010Full Democracy
 Djibouti303Open Anocracy
 Dominican Republic817Democracy
 East Timor918Democracy
 Ecuador615Open Anocracy
 Egypt04-4Closed Anocracy
 El Salvador808Democracy
 Equatorial Guinea06-6Autocracy
 Eritrea07-7Autocracy
 Estonia909Democracy
 Ethiopia321Open Anocracy
 Fiji404Open Anocracy
 Finland10010Full Democracy
 France909Democracy
 Gabon413Open Anocracy
Gambia404Open Anocracy
 Georgia817Democracy
 Germany10010Full Democracy
 Ghana808Democracy
 Greece10010Full Democracy
 Guatemala918Democracy
 Guinea404Open Anocracy
 Guinea-Bissau716Democracy
 Guyana817Democracy
 Haiti615Open Anocracy
 Honduras707Democracy
 Hungary10010Full Democracy
 India909Democracy
 Indonesia909Democracy
 Iran07-7Autocracy
 Iraq606Democracy
 Ireland10010Full Democracy
 Israel716Democracy
 Italy10010Full Democracy
 Ivory Coast514Open Anocracy
 Jamaica909Democracy
 Japan10010Full Democracy
 Jordan25-3Closed Anocracy
 Kazakhstan06-6Autocracy
 Kenya909Democracy
 Kosovo808Democracy
 Kuwait07-7Autocracy
 Kyrgyzstan808Democracy
 Laos07-7Autocracy
 Latvia808Democracy
 Lebanon606Democracy
 Lesotho918Democracy
 Liberia817Democracy
 Lithuania10010Full Democracy
 Luxembourg10010Full Democracy
Macedonia909Democracy
 Madagascar606Democracy
 Malawi606Democracy
 Malaysia707Democracy
 Mali615Open Anocracy
 Mauritania02-2Closed Anocracy
 Mauritius10010Full Democracy
 Mexico808Democracy
 Moldova909Democracy
 Mongolia10010Full Democracy
 Montenegro909Democracy
 Morocco15-4Closed Anocracy
 Mozambique615Open Anocracy
 Myanmar808Democracy
 Namibia606Democracy
   Nepal817Democracy
 Netherlands10010Full Democracy
 New Zealand10010Full Democracy
 Nicaragua716Democracy
 Niger615Open Anocracy
 Nigeria817Democracy
 North Korea010-10Autocracy
 Norway10010Full Democracy
 Oman08-8Autocracy
 Pakistan707Democracy
 Panama909Democracy
 Papua New Guinea505Open Anocracy
 Paraguay909Democracy
 Peru909Democracy
 Philippines808Democracy
 Poland10010Full Democracy
 Portugal10010Full Democracy
 Qatar010-10Autocracy
 Romania909Democracy
 Russia514Open Anocracy
 Rwanda03-3Closed Anocracy
 Saudi Arabia010-10Autocracy
 Senegal707Democracy
 Serbia918Democracy
 Sierra Leone817Democracy
 Singapore24-2Closed Anocracy
Slovak Republic10010Full Democracy
 Slovenia10010Full Democracy
 Solomon Islands918Democracy
 Somalia505Open Anocracy
 South Africa909Democracy
 South Korea808Democracy
 Spain10010Full Democracy
 Sri Lanka716Democracy
 Sudan04-4Closed Anocracy
 Suriname615Open Anocracy
 Eswatini09-9Autocracy
 Sweden10010Full Democracy
  Switzerland10010Full Democracy
 Syria09-9Autocracy
 Taiwan10010Full Democracy
 Tajikistan14-3Closed Anocracy
 Tanzania413Open Anocracy
 Thailand03-3Closed Anocracy
 Togo13-2Closed Anocracy
 Trinidad and Tobago10010Full Democracy
 Tunisia707Democracy
 Turkey04-4Closed Anocracy
 Turkmenistan08-8Autocracy
 Uganda12-1Closed Anocracy
 Ukraine514Open Anocracy
 United Arab Emirates08-8Autocracy
 United Kingdom808Democracy
 United States808Democracy
 Uruguay10010Full Democracy
 Uzbekistan09-9Autocracy
 Venezuela14-3Closed Anocracy
 Vietnam07-7Autocracy
 Zambia606Democracy
 Zimbabwe514Open Anocracy

See also

References

  1. Casper, Gretchen, and Claudiu Tufis. 2003. “Correlation Versus Interchangeability: the Limited Robustness of Empirical Finding on Democracy Using Highly Correlated Data Sets.” Political Analysis 11: 196-203.
  2. Polity IV Country Report 2010: Canada http://www.systemicpeace.org/polity/Canada2010.pdf
  3. Gerardo L. Munck, Jay Verkuilen (February 2002), "Conceptualizing and measuring democracy: Evaluating Alternative Indices" (PDF), Comparative Political Studies, 35 (1): 5–34, CiteSeerX 10.1.1.469.3177, doi:10.1177/001041400203500101
  4. "Polity IV Annual Time-Series, 1800-2018". Retrieved 31 August 2019.
  5. "INSCR Data Page". 2019-06-02.
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