Beyond the second-order national elections model: Incumbency effects in regional elections in the Czech Republic
Abstract
Literature provides four basic theories to explain regional election results and how they differ from national patterns: authority of regional governments, ethnic or linguistic cleavages, congruence of national and regional electoral systems, and second-order election effects. The second-order national election theory explains why regional elections exhibit lower turnout levels, why government parties lose voter support, and why opposition, minor, and new parties gain support.
While second-order election theory provides the dominant explanation for countries with low regional power, we argue in favour of an additional explanation based on incumbency effects on parties’ electoral support. We test the explanations on Czech regional and national election data for the years 2000–2020.
The results attest to a strong effect of regional governorship, with a bonus of 5 percentage points for parties whose governors run for re-election. Parties also receive another bonus when national-level MPs and local mayors are present on the ballot.