Corruption and Political Support: The Case of Peru’s Vacuna-gate Scandal

Oscar Castorena, Noam Lupu, Adam D. Wolsky and Elizabeth J. Zechmeister

Journal of Experimental Political Science, 2024, vol. 11, issue 1, 52-63

Abstract: Classic theories of public opinion suggest that negative shocks can undermine system support in weak democracies, but scant work has systematically assessed this thesis. We identify Peru’s explosive Vacuna-gate scandal as a most-likely case for finding a connection between corruption and political support. The scandal’s unexpected revelation in the middle of the 2021 AmericasBarometer Peru survey created conditions for a natural experiment. Applying an unexpected-event-during-survey design, we consider the consequences of the scandal for perceptions of corruption, system support, and support for democracy. We find robust evidence that the scandal increased even already high perceptions of corruption and lowered system support. Contrary to expectations derived from prior theories, we find no effect on explicit support for democracy. In the conclusion, we discuss the nuanced ways that scandal may shape democratic stability.

Date: 2024
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