Final answer:
Duverger's law explains how electoral systems influence the number of competitive political parties in a country.
Explanation:
Duverger's law states that political systems with plurality voting and single-member districts will tend to have two competitive political parties in each race. This relationship between electoral systems and party systems can be observed in countries like the United States where winner-takes-all systems lead to a two-party dynamic, while proportional representation systems, as seen in Europe, often result in the election of three or more parties.
Learn more about Duverger's law and electoral systems here:
https://brainly.com/question/40500013
