Coordinating nominations: how to deal with an incumbent surplus after electoral reform

Abstract How do parties and candidates react to electoral system reform? While the literature on causes and consequences of electoral reforms is receiving increasing attention, we lack a systematic micro-level account on how parties and candidates adopt to changes in electoral rules and district boundaries. This paper examines the case of the Japanese Liberal Democrats to explore how the party has managed to accommodate a surplus of incumbents to a reduced number of nominal tier seats following the 1994 electoral reform. By using micro-level data, I examine how the Liberal Democratic Party (LDP) has matched candidates based on their expected electoral strength and ideological positioning to new districts. Moreover, I investigate how the newly instituted party-list allowed the LDP to avoid its disintegration at the local level by systematically defusing local stand-offs through the handing out of promising list positions. My findings help to understand how the LDP could avoid its disintegration and could continue to dominate Japanese politics until today.