The US is one of the few countries to have a majoritarian or 2-party system.
Most democracies have a proportional or multiparty system. (Europe, Israel).
A Two Party system is a system where only two major parties have a realistic chance of winning elections.
Here is a short history of America's Two Party System
Below is an explanation of why our electoral system creates our Two Party System.
Duverger's three laws of political party developmentThe following is a verbatim French→English translation of Duverger's own words (a 1980 statement by Maurice Duverger):
- The plurality (1 winner) voting system tends to lead to a 2-party system.
- The proportional representation (multiwinner) system tends to lead to many mutually independent parties.
|Proportional Representation||Winner Take All/SMDP|
|More power to extremes||More Moderate|
|Minor Party=Some Power||Minor Party=Wasted Vote|
|Compromise after election||Compromise before election|
|Party Centered||Candidate Centered|
|Strong Party Discipline||Weak Party Discipline|
|More Democratic||Less Democratic|
Hey, let's try an Instant Runoff Voting system!
- Why don't Third (minor) parties win in the US?
- Should you vote for Third (minor) parties?
- Is a two party system democratic?