
Local politicians are expected to mobilize voters for national party candidates, but this effort proves challenging due to monitoring difficulties and rewards' credibility issues.
The study employs a formal model showing that local incentives depend on copartisan officials' proportion. More colleagues mean greater district capture chances yet reduces individual impact, disincentivizing effort.
Using Mexican federal election data (2000-2012), the findings validate this theory: parties do not gain significant mobilization advantages from controlling multiple offices simultaneously.

| Jumping Ship or Jumping on the Bandwagon: When Do Local Politicians Support National Candidates? was authored by Guillermo Rosas and Adrian Lucardi. It was published by Cambridge in PSR&M in 2020. |