Winning A Mayor’s Race Often Silences Donors—Unless They Get Municipal Contracts

Why This Question Matters

Political donations are typically explained by ideology and party ties, but in many settings personal loyalty and investment motives shape who gives and why. Miguel R. Rueda and Nelson A. Ruiz ask how electoral outcomes affect subsequent campaign contributions when donors primarily seek personal access or economic returns rather than ideological representation.

Setting and Main Argument

The authors develop a simple theory: when donations are driven by personal connections and investments, two forces should shape donors’ future behavior—(1) government benefits that donors accrue (for example, municipal contracts) and (2) whether the supported candidate runs again. They test these ideas in Colombian mayoral contests, a context characterized by non-ideological races, weak party organizations, and legal restrictions on immediate re-election, which helps isolate the role of investment-based motives.

Evidence and Methods

Using data from Colombian mayoral elections, Rueda and Ruiz track donors across election cycles to examine whether giving to a winning candidate changes the likelihood of donating in the next race. They further compare donors who received municipal contracts after the election with those who did not, testing for heterogeneity consistent with an "investment" motive.

Key Findings

• Donating to the winning mayoral candidate is associated with a reduced probability of donating in the next election cycle.
• Among donors to winners, those who later receive a municipal contract are more likely to continue donating than winner-donors who do not receive contracts.

What This Reveals

These patterns underscore the importance of personal loyalty and fulfilled investment expectations in shaping campaign contributions in less institutionalized electoral settings. When political giving functions partly as an investment, material returns from government (contracts) can sustain donor engagement even after a candidate wins, while the absence of such returns often leads donors to disengage.

Implications for Research and Policy

The findings highlight how clientelist incentives and candidate-centered politics can alter the dynamics of campaign finance, with consequences for accountability and the composition of political support in non-established democracies.