The Liberal Democratic Party at 50: Sources of Dominance and Changes in the Koizumi Era

More than 50 years after its founding, Japan’s Liberal Democratic Party (LDP) is still going strong. It has become the dominant party within a democratic setting. How did the LDP manage to cling to its dominant position for such a long time? And to what extent has the LDP changed colours under the leadership of Koizumi Jun’ichirō? This survey article attempts to answer these questions by focussing on the three dimensions of LDP dominance: electoral, parliamentary, and executive dominance. It argues that clientelist politics explain a good deal of the success of the LDP in the past. Such an orientation however became decreasingly effective and sustainable in a political environment that has changed significantly since the early 1990s. In the Koizumi era, the LDP managed to rise again to the challenges posed to its dominance by appealing directly to voters, by optimizing electoral cooperation, and by making efforts to centralize policymaking. Whether these more recent approaches to maintaining LDP dominance can be sustained, however, remains an open question.