Evidence of a Local Incumbency Advantage

Incumbents are highly likely to win reelection at all levels of government, but scholars continue to debate the extent to which serving in office has a causal effect on winning. For city council elections it is unclear whether or not we should predict a causal effect at all. City councilors may not regularly seek reelection, and any apparent advantage could be entirely attributable to preexisting qualities rather than incumbency. This article uses a regression discontinuity design to provide evidence that city council incumbents are more likely to run and win their next elections because they served a term in office.