Parliamentary Cycles and Party Switching in Legislatures

Abstract

This article examines politicians' changes of party labels during the life of a legislature. The authors view a legislator's choice of party as a strategic decision recurring throughout the parliamentary cycle. In their approach, individuals are open to switching parties as they pursue goals specific to the stage in the parliamentary cycle. Analyzing Italy and Russia, they identify among legislators in both countries patterns of heightened switching for office benefits, policy advantage, and vote seeking at distinctive moments in the parliamentary cycle. The commonalities across the two systems provide compelling support for their theoretical framework. The evidence also points to a midterm peak in switching in both countries. Differences appear, however, in the timing of preelectoral positioning—contrasts that the authors attribute to differences in the degree of party system institutionalization, the age of the democratic regimes, and thus the information available to players in electoral politics.