There are several types of electoral systems for electing representatives. Plurality/first-past-the-post systems are used in the UK, where each constituency elects one member of parliament and the candidate with the most votes wins, even if they do not receive a majority. This system can result in overrepresentation of the largest parties and underrepresentation of others. Majority systems aim to elect candidates supported by over 50% of voters through methods like ranked voting and runoffs. Proportional systems allocate seats to parties based on their overall vote share through closed-list or open-list proportional representation. Hybrid systems combine elements of plurality and proportional systems.