The Liberal Democratic Party maintains a dominant position in Japanese politics while the opposition side is fragmented into many parties. Small opposition parties, namely the Communists, are still surviving even though it has been almost three decades since the 1994 electoral law reform, which made it difficult for such parties to exist. Fragmentation of the opposition is giving an electoral advantage to the ruling party. How can small opposition parties survive? An empirical analysis of voter survey data supports the argument that the controversy over a constitutional revision is playing a role in preventing anti-government voters from unifying under a single party.

Political opposition has long been one of the most dramatically understudied elements of real-world politics in contemporary democratic and authoritarian regimes. The past decade or so has, however, witnessed an upsurge of new opposition research that begs for a major state-of-the-field review. Interestingly, recent scholarship has focused more on manifestations of opposition in authoritarian and hybrid than in democratic systems, which indicates a latent reconceptualization of political opposition (setting aside older distinctions between regime-loyal opposition and regime-challenging forms of resistance, dissidence and contestation). With a focus on party-based forms of opposition, which have been widely considered to mark the most effective form of opposition, this review article takes stock and highlights key issues for future research as well as some inherent obstacles to the emergence of a more integrated field of cross-regime opposition studies.

Recent scholarship on retrospective voting has shown that when they go to the polls, voters evaluate not only incumbent performance, but also the performance of parties in opposition. So far, however, these studies have not been able to identify how voters evaluate the performance of parties in opposition. The answers to a unique open-ended question included in a Belgian electoral survey in 2019 provide new insights into voters' minds. First, this study investigates what voters think about when they evaluate a party's performance in opposition. Second, it tests whether voters hold opposition parties responsible for the state of affairs in the country. The results show that voters are most concerned with opposition parties' competence in scrutinizing the government and providing constructive criticism, and dislike unconstructive and overly negative opposition. Furthermore, voters hold opposition parties accountable for the state of affairs in their country, albeit to a lesser extent than incumbent parties.

The survival of minority governments depends on support from non-cabinet parties that strive to safeguard government stability while also fulfilling their accountability to the electorate. This article argues that non-cabinet parties' propensity to support the government depends on their desire to uphold distinctiveness when accountability is at stake. This even applies to opposition parties that are officially committed to minority government support and, as a trade-off, receive policy pay-offs. By analysing opposition party voting in 23 years of Swedish minority governments (1991–2018), the article suggests that ideologically distant support parties are more likely to oppose the government on their core issues since compromise would involve too-large concessions. These results question our understanding of support party pay-offs as a trade-off for minority government support and highlight the rationality of entering a support agreement, which gives the support party a certain degree of policy influence while also keeping a distinct party profile.