<p>The relationship between party system fragmentation and voter turnout is a long-standing phenomenon, the form of which has not yet been precisely defined. Using data from the Round 10 of European Social Survey (2020–2022), this article attempts to investigate the relationship across European democracies. Consistently with previous research, association between party system fragmentation as well as increase in number of parties between elections and turnout seems to be negative but rather weak. However, as could be expected based on a rational choice theory and cognitive overload, the effect depends on several individual and context level characteristics. The results suggest that negative effect of fragmentation may be attenuated by a high degree of partisanship. On the other hand, it may be strengthened in the context of an unanchored party system, as demonstrated in the case of Eastern and Central Europe compared to Western Europe, or by lower levels of political polarization.</p>

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When too many is too much: the effects of party system fragmentation on voter turnout in Europe

  • Jakub Janega,
  • Kateřina Zymová

摘要

The relationship between party system fragmentation and voter turnout is a long-standing phenomenon, the form of which has not yet been precisely defined. Using data from the Round 10 of European Social Survey (2020–2022), this article attempts to investigate the relationship across European democracies. Consistently with previous research, association between party system fragmentation as well as increase in number of parties between elections and turnout seems to be negative but rather weak. However, as could be expected based on a rational choice theory and cognitive overload, the effect depends on several individual and context level characteristics. The results suggest that negative effect of fragmentation may be attenuated by a high degree of partisanship. On the other hand, it may be strengthened in the context of an unanchored party system, as demonstrated in the case of Eastern and Central Europe compared to Western Europe, or by lower levels of political polarization.