The assertion that plurality elections in single-member districts tend to produce two-party systems is called:

Question

Quizplus · Accepted Answer

Duverger's Law is a political principle which asserts that single-member district electoral systems, which are based around plurality voting, favor the emergence of a two-party system. This is because in order to win a district, a party must receive more votes than any other candidate or list, giving the advantage to larger and more established political parties. This theory has been widely observed in many countries with single-member district electoral systems, including the United States and the United Kingdom. The other answer choices are not relevant to this principle.

The Assertion That Plurality Elections in Single-Member Districts Tend to Produce