Single-Member-District-Plurality (SMDP)
Two-Round System (TRS)
Alternative Vote (AV)
Borda Count (BC)
Block Vote (BV)
Party Block Vote (PBV)
Limited Vote (LV)
Single Nontransferable Vote (SNTV)
List Proportional Representation (List PR)
Single Transferable Vote (STV)
Mixed Dependent (or Mixed Member Proportional)
Mixed Independent (or Mixed Parallel)
Majoritarian
Proportional
Mixed
Two Round Majority-Plurality
Two Round Qualified Majority
Two Round Majority Runoff
Modified Borda Count (mBC)
Hare quota
Hare quota with largest remainders
Hare quota with highest average remainders
Hagenbach-Bischoff quota
Hagenbach-Bischoff quota with largest remainders
Hagenbach-Bischoff quota with highest average remainders
Droop quota
Droop quota with largest remainders
Droop quota with highest average remainders
Imperiali quota
Imperiali quota with largest remainders
Imperiali quota with highest average remainders
Reinforced Imperiali quota
D'Hondt
Sainte-Lague
Modified Sainte-Lague
Single Transferable Vote
no
yes
unclear
Free
Partly Free
Not Free
1. Eastern Europe and post Soviet Union
2. Latin America
3. North Africa & the Middle East
4. Sub-Saharan Africa
5. Western Europe and North America
6. East Asia
7. South-East Asia
8. South Asia
9. The Pacific
10. The Caribbean
0. Never colonized by a Western overseas colonial power
1. Dutch
2. Spanish
3. Italian
4. US
5. British
6. French
7. Portuguese
8. Belgian
9. British-French
10. Australian
Single-party majority government
Minimal winning coalition
Surplus coalition
Single-party minority government
Multi-party minority government
Caretaker government
Technocratic government
1. Universally prohibited
2. Prohibited except in the case of war
3. Prohibited with other exception(s)
4. Explicitly allowed
90. Left explicitly to non-constitution
96. Other
98. Not specified
1. Yes
2. Yes, but with limitations
3. No
2. No
97. Unable to determine