Iwasaki analyses the state of Japanese politics using the established analytical framework of presidentialization – looking at leadership power resources, leadership autonomy, and the personalization of the electoral process – and assesses the factors that have been claimed to lead to similar changes in other countries. He argues that there are also unique variables that contribute to the presidentialization of Japanese politics. Most notably, the introduction of public subsidies to political parties and electoral reform in 1994. A valuable contribution to the global scholarship on presidentialization, which will be of particular interest to scholars of Japanese politics.