Polity data series

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Number of nations 1800–2003 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.

The Polity data series is a widely used data series in political science research.[1] The latest version, Polity IV, contains coded annual information on the level of democracy for all independent states with greater than 500,000 total population and covers the years 1800–2013. 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 value maximum value
autocracies -10 -6
anocracies -5 5
democracies 6 10

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.

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.[2]

Scores for 2015[edit]

Country Democracy Autocracy Polity datasets IV number[3] Polity datasets IV category
 Afghanistan 1 2 -1 Closed Anocracy
 Albania 9 0 9 Democracy
 Algeria 3 1 2 Open Anocracy
 Angola 2 4 -2 Closed Anocracy
 Argentina 9 0 9 Democracy
 Armenia 5 0 5 Open Anocracy
 Australia 10 0 10 Full Democracy
 Austria 10 0 10 Full Democracy
 Azerbaijan 0 7 -7 Autocracy
 Bahrain 0 10 -10 Autocracy
 Bangladesh 3 2 1 Open Anocracy
 Belarus 0 7 -7 Autocracy
 Belgium 8 0 8 Democracy
 Benin 7 0 7 Democracy
 Bhutan 6 1 5 Open Anocracy
 Bolivia 7 0 7 Democracy
 Bosnia and Herzegovina -66 -66 -66 N/A
 Botswana 8 0 8 Democracy
 Brazil 8 0 8 Democracy
 Bulgaria 9 0 9 Democracy
 Burkina Faso 7 1 6 Democracy
 Burundi 2 3 -1 Closed Anocracy
 Cambodia 3 1 2 Open Anocracy
 Cameroon 1 5 -4 Closed Anocracy
 Canada 10 0 10 Full Democracy
 Cape Verde 10 0 10 Full Democracy
 Central African Republic -77 -77 0 Failed State
 Chad 1 3 -2 Closed Anocracy
 Chile 10 0 10 Full Democracy
 China 0 7 -7 Autocracy
 Colombia 7 0 7 Democracy
 Comoros 9 0 9 Democracy
Republic of the Congo Congo Brazzaville 0 4 -4 Closed Anocracy
Democratic Republic of the Congo Congo Kinshasa 6 1 5 Open Anocracy
 Costa Rica 10 0 10 Full Democracy
 Croatia 9 0 9 Democracy
 Cuba 0 7 -7 Autocracy
 Cyprus 10 0 10 Full Democracy
 Czech Republic 9 0 9 Democracy
 Denmark 10 0 10 Full Democracy
 Djibouti 5 1 4 Open Anocracy
 Dominican Republic 8 0 8 Democracy
 East Timor 9 1 8 Democracy
 Ecuador 6 1 5 Open Anocracy
 Egypt 0 4 -4 Closed Anocracy
 El Salvador 8 0 8 Democracy
 Equatorial Guinea 0 6 -6 Autocracy
 Eritrea 0 7 -7 Autocracy
 Estonia 9 0 9 Democracy
 Ethiopia 1 4 -3 Closed Anocracy
 Fiji 3 1 2 Open Anocracy
 Finland 10 0 10 Full Democracy
 France 9 0 9 Democracy
 Gabon 4 1 3 Open Anocracy
The Gambia Gambia 0 5 -5 Closed Anocracy
 Georgia 8 1 7 Democracy
 Germany 10 0 10 Full Democracy
 Ghana 8 0 8 Democracy
 Greece 10 0 10 Full Democracy
 Guatemala 9 1 8 Democracy
 Guinea 4 0 4 Open Anocracy
 Guinea-Bissau 7 1 6 Democracy
 Guyana 8 1 7 Democracy
 Haiti -77 -77 0 Failed State
 Honduras 7 0 7 Democracy
 Hungary 10 0 10 Full Democracy
 India 9 0 9 Democracy
 Indonesia 9 0 9 Democracy
 Iran 0 7 -7 Autocracy
 Iraq 6 0 6 Democracy
 Ireland 10 0 10 Full Democracy
 Israel 7 1 6 Democracy
 Italy 10 0 10 Full Democracy
 Ivory Coast 5 1 4 Open Anocracy
 Jamaica 9 0 9 Democracy
 Japan 10 0 10 Full Democracy
 Jordan 2 5 -3 Closed Anocracy
 Kazakhstan 0 6 -6 Autocracy
 Kenya 9 0 9 Democracy
 Kosovo 8 0 8 Democracy
 Kuwait 0 7 -7 Autocracy
 Kyrgyzstan 7 0 7 Democracy
 Laos 0 7 -7 Autocracy
 Latvia 8 0 8 Democracy
 Lebanon 6 0 6 Democracy
 Lesotho 9 1 8 Democracy
 Liberia 7 1 6 Democracy
 Libya -77 -77 0 Failed State
 Lithuania 10 0 10 Full Democracy
 Luxembourg 10 0 10 Full Democracy
Republic of Macedonia Macedonia 9 0 9 Democracy
 Madagascar 6 0 6 Democracy
 Malawi 6 0 6 Democracy
 Malaysia 6 1 5 Open Anocracy
 Mali 6 1 5 Open Anocracy
 Mauritania 0 2 -2 Closed Anocracy
 Mauritius 10 0 10 Full Democracy
 Mexico 8 0 8 Democracy
 Moldova 9 0 9 Democracy
 Mongolia 10 0 10 Full Democracy
 Montenegro 9 0 9 Democracy
 Morocco 1 5 -4 Closed Anocracy
 Mozambique 6 1 5 Open Anocracy
 Myanmar -88 -88 -88 Transition
 Namibia 6 0 6 Democracy
   Nepal 6 0 6 Democracy
 Netherlands 10 0 10 Full Democracy
 New Zealand 10 0 10 Full Democracy
 Nicaragua 9 0 9 Democracy
 Niger 7 1 6 Democracy
 Nigeria 8 1 7 Democracy
 North Korea 0 10 -10 Autocracy
 Norway 10 0 10 Full Democracy
 Oman 0 8 -8 Autocracy
 Pakistan 7 0 7 Democracy
 Panama 9 0 9 Democracy
 Papua New Guinea 5 0 5 Open Anocracy
 Paraguay 9 0 9 Democracy
 Peru 9 0 9 Democracy
 Philippines 8 0 8 Democracy
 Poland 10 0 10 Full Democracy
 Portugal 10 0 10 Full Democracy
 Qatar 0 10 -10 Autocracy
 Romania 9 0 9 Democracy
 Russia 5 1 4 Open Anocracy
 Rwanda 0 3 -3 Closed Anocracy
 Saudi Arabia 0 10 -10 Autocracy
 Senegal 7 0 7 Democracy
 Serbia 9 1 8 Democracy
 Sierra Leone 8 1 7 Democracy
 Singapore 2 4 -2 Closed Anocracy
Slovakia Slovak Republic 10 0 10 Full Democracy
 Slovenia 10 0 10 Full Democracy
 Solomon Islands 9 1 8 Democracy
 Somalia 5 0 5 Open Anocracy
 South Africa 9 0 9 Democracy
 South Korea 8 0 8 Democracy
 South Sudan -77 -77 0 Failed State
 Spain 10 0 10 Full Democracy
 Sri Lanka 7 1 6 Democracy
 Sudan 0 4 -4 Closed Anocracy
 Suriname 6 1 5 Open Anocracy
 Swaziland 0 9 -9 Autocracy
 Sweden 10 0 10 Full Democracy
  Switzerland 10 0 10 Full Democracy
 Syria 0 9 -9 Autocracy
 Taiwan 10 0 10 Full Democracy
 Tajikistan 1 4 -3 Closed Anocracy
 Tanzania 4 1 3 Open Anocracy
 Thailand 0 3 -3 Closed Anocracy
 Togo 1 3 -2 Closed Anocracy
 Trinidad and Tobago 10 0 10 Full Democracy
 Tunisia 7 0 7 Democracy
 Turkey 4 1 3 Open Anocracy
 Turkmenistan 0 8 -8 Autocracy
 Uganda 1 2 -1 Closed Anocracy
 Ukraine 5 1 4 Open Anocracy
 United Arab Emirates 0 8 -8 Autocracy
 United Kingdom 10 0 10 Full Democracy
 United States 10 0 10 Full Democracy
 Uruguay 10 0 10 Full Democracy
 Uzbekistan 0 9 -9 Autocracy
 Venezuela 4 0 4 Open Anocracy
 Vietnam 0 7 -7 Autocracy
 Yemen -77 -77 0 Failed State
 Zambia 7 0 7 Democracy
 Zimbabwe 5 1 4 Open Anocracy

See also[edit]

References[edit]

  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. ^ Gerardo L. Munck, Jay Verkuilen (February 2002), "Conceptualizing and measuring democracy: Evaluating Alternative Indices" (PDF), Comparative Political Studies, Sage Publications, 35 (1): 5–34 
  3. ^ "Polity IV Annual Time-Series, 1800-2015". Retrieved 21 December 2015. 

External links[edit]