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Factional Dynamics in Philippine Party Politics, 1900–2019

The Philippines is a rich case study in the examination of intra-party factions and factionalism in competitive party systems of Southeast Asia. Intra-party factionalism is a recurring, yet understudied, aspect of Philippine party politics. The factional nature of Philippine party politics has endured through time – from bifactionalism of the post-war two-party system to the multi-factionalism of the post-authoritarian multi-party system. All the major political parties that have dominated politics at different historical epochs have experienced intense factional splits. Intra-party factionalism remains a consistent feature of party politics and has become more complicated over time. The number of factions has increased at every period of party system development, while the level of party institutionalization has remained generally low. This article seeks to address this puzzle by tracing the history of political factionalism in the Philippines. It maintains that factional resilience in Philippine party politics is an outcome of combined institutional and structural factors rooted in history. Adopting a historical institutional approach, it will delineate the path-dependent trajectory of intra-party factionalism at critical political junctures. Moreover, it will examine the role of intra-party factionalism in the under-institutionalization of the Philippine party system.