Japan's electoral system combines single-member districts and proportional representation, balancing local and national interests. The bicameral legislature elects the prime minister, typically the leader of the majority party or coalition. Recent reforms have aimed to modernize the system and increase representation. Political parties in Japan have evolved since the Meiji period, with the Liberal Democratic Party dominating post-war politics. Opposition parties have emerged to challenge LDP's power, leading to shifts in the political landscape. Current major parties represent diverse ideologies and policy platforms.