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Political fragmentation and government stability: evidence from local governments in Spain

Felipe Carozzi, Davide Cipullo and Luca Repetto


This paper studies how political fragmentation affects government stability. Using a regression discontinuity design, we show that each additional party with representation in the local parliament increases the probability that the incumbent government is unseated by 5 percentage points. The entry of an additional party affects stability by reducing the probability of a single-party majority and increasing the instability of governments when such a majority is not available. We interpret our results in light of a bargaining model of coalition formation featuring government instability.


1 April 2022


American Economic Journal: Applied Economics 14(2) , pp.23-50, 2022


DOI: 10.1257/APP.20200128

https://www.aeaweb.org/articles?id=10.1257/app.20200128

This Journal article is published under the centre's Urban programme.