Conclusion
This chapter sums up the preceding discussion and examines the radical changes in the nature of electoral competition in the UK since 1964. In particular, it assesses the impact on campaigning of social media and the Internet. It also discusses the impact of social change on voting behaviour over the years, as well as the transformation of political parties and the very different composition of the House of Commons. These various changes had occurred while UK-wide elections are still conducted under the Simple Plurality (‘first-past-the-post’) electoral system, although a variety of different systems have been adopted for virtually all other elections. Thus, by 2021, almost the only factor in UK elections which has remained constant since 1964 is the voting system. In other respects, the volatility which has become increasingly marked since the 1960s looks set to continue.