We study the effect of a change in electoral rules on political competition, measured by the number of candidates and their political experience. We explore the effects of a change in legislation, introduced a year before the gubernatorial elections in Peru on the number of parties that participated in these elections. We also investigate how the legislative change affected the political experience of the candidates. Given that the legislative change did not apply to elections for provincial mayors, we use those elections as a control group, in a difference-in-differences design. Our estimates show the number of parties registered increased by a margin of around 2.2 after the legislative change. The change also increased the candidates' years of accumulated political experience, particularly in the subsequent gubernatorial elections.
Nota bibliográficaFunding Information:
We want to thank Juan Francisco Castro for his insights. We would also like to thank Gustavo Yamada, Diego Winkelried, Gabriel Natividad and Miguel Angel Carpio for their suggestions on earlier versions of the manuscript. We are grateful to the editor, two anonymous referees and seminar participants at Universidad de Piura, the Peruvian Electoral Studies Congress, the Peruvian Economics Association meeting and the Asian and Australasian Society of Labour Economics Inaugural conference for their helpful comments. Rodrigo Chang, Cesar Salinas and Gonzalo Vidalón provided outstanding research assistance. This research was generously supported by the Peruvian Social and Economic Research Consortium. As usual, all mistakes are our own.
© 2019 Elsevier B.V.
- Duverger's law
- Number of political parties
- Runoff voting
- Voting behavior