Effect of Local Media Ownership on Municipal Election Outcomes

Thesis Abstract

The study addresses the growing concern that local media ownership structures influence municipal election outcomes through agenda setting, framing, and candidate visibility, thereby affecting democratic accountability and local governance quality. Despite substantial literature on media effects in national elections, there is limited empirical evidence on how ownership concentration at the local level shapes electoral competition, turnout, candidate selection, and policy-oriented voting behavior within municipalities. The aim is to systematically examine whether and how local media ownership—characterized by (a) ownership concentration, (b) cross-ownership across print, broadcast, and digital platforms, and (c) ownership by private equity or nonprofit entities—affects municipal election outcomes in terms of vote shares, incumbency advantage, and policy salience. Specific objectives are (1) to measure the association between local ownership concentration and incumbent reelection rates; (2) to assess the impact of cross-ownership on candidate visibility and issue framing as perceived by residents; (3) to evaluate whether municipalities with ownership-linked media ecosystems exhibit differential turnout and partisan voting patterns; (4) to analyze policy salience and issue prioritization in local campaign coverage; and (5) to explore potential moderating effects of media literacy and municipal demographic characteristics. The methodology adopts a mixed-methods design combining quantitative and qualitative strands. The population comprises 250 municipalities across a defined regional corridor with diverse media markets and comparable socio-economic profiles. A stratified random sample of 120 municipalities is selected to ensure representation by population size, urban-rural status, and known ownership structures. Quantitative data include municipal election results from official electoral commissions for the last three cycles, contrasted with media ownership data sourced from regulatory filings, corporate disclosures, and industry reports to construct an Ownership Index (OI) capturing concentration, cross-ownership, and affiliation type. Survey data are gathered from a representative resident panel (n = 3,600, 30 respondents per municipality) to measure perceptions of media credibility, issue salience, and turnout propensity. Media content data are collected from local outlets (n = 18 per municipality, including print, broadcast, and digital platforms) for a six-month pre-election window, with a coding framework assessing framing, candidate visibility, and issue emphasis. In-depth interviews (40) with editors, owners, and municipal officials provide contextual understanding of decision-making processes behind coverage. Analytical techniques include hierarchical linear modeling (HLM) to test associations between ownership characteristics and electoral outcomes while controlling for demographic covariates and political context; fixed-effects regression to compare incumbency advantage across municipalities; logistic regression to model turnout probability; content analysis with intercoder reliability (Cohen’s kappa > 0.80) to quantify framing and issue emphasis; and thematic analysis of interview transcripts to elucidate mechanisms by which ownership influences coverage and subsequent voting behavior. The study integrates Rosenberg and McCombs’ agenda-setting theory and McNair’s framing theory to interpret how ownership shapes media content and public perception. Robustness checks include alternative specifications of the Ownership Index and placebo tests using non-election periods. Expected findings anticipate a positive association between high ownership concentration or cross-ownership with reduced incumbent vote shares in municipalities where ownership signals greater media amplification for challengers’ visibility and issue framing, while in other contexts the effect may be neutral or reinforce incumbency if ownership aligns with established power structures. The analysis is expected to reveal that targeted framing of local issues (e.g., public safety, service delivery) correlates with higher turnout in demographics sensitive to those issues, moderated by media literacy levels and civic engagement indicators. The contribution to knowledge lies in providing, for the first time at this scale, causal-leaning evidence on how local media ownership shapes municipal electoral dynamics, unpacking the mechanisms of visibility, framing, and issue salience. The study informs policy debates on media diversity, local journalism sustainability, and electoral integrity, offering recommendations for regulators to monitor ownership concentration, encourage pluralistic coverage, and promote media literacy programs to mitigate potential distortions in local democratic processes. The main conclusion posits that local media ownership structures materially influence municipal election outcomes through visibility and framing effects, with implications for equitable representation; recommendations include diversifying ownership, supporting independent local journalism, and enhancing transparency in editorial decision-making to sustain robust local democracy.