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How can political fragmentation make it harder for a democracy to pass laws?
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California voters casting their ballots in the 2012 U.S. presidential election.
Political fragmentation complicates the legislative process by creating barriers to effective governance and consensus-building. The impact of this fragmentation varies depending on the structure of the political system:
- Proportional Representation (PR) Systems: These systems often lead to interparty fragmentation, as a large number of parties gain legislative seats. This necessitates the formation of coalition governments, which can be unwieldy and prone to compromise that may not reflect the original preferences of voters. Because no single party is clearly responsible for performance, accountability is often diminished.1
- Plurality Voting (PV) Systems: While these systems typically avoid interparty fragmentation, they can suffer from intraparty fragmentation. This occurs when parties become beholden to specific subsets of members or outside financial interests, weakening them as institutions of effective governance and contributing to legislative gridlock.1
- Institutional Veto Points: In systems like the United States, fragmentation is amplified by a profusion of veto points—such as bicameral legislatures, independent judiciaries, and strong federal systems—that allow various actors to block national priorities. This environment often necessitates extensive logrolling and horse trading, which can favor wealthy interests over the broader public good.1