What explains party support at the aggregate level? This study answers the question by analyzing dynamics in party support at the aggregate level in Korea. In particular, I focus on the relationship between presidential popularity and party support. T...
What explains party support at the aggregate level? This study answers the question by analyzing dynamics in party support at the aggregate level in Korea. In particular, I focus on the relationship between presidential popularity and party support. This study examines quarterly data of presidential approval ratings and party support level from 1994 to 2022 and estimates the effects of presidential popularity on macropartisanship. According to the results of time series analyses in this study, increases in presidential approval ratings tend to raise ruling party support level and lower opposition party support level. However, presidential popularity does not significantly explain changes in the proportion of nonpartisans. Furthermore, this article reveals that the flow of party support occurs between ruling and opposition parties and between ruling parties and nonpartisans when presidential popularity changes. However, presidential popularity does not significantly affect the flow of party support between opposition parties and nonpartisans.