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Persuading Voters with Partisan TV News: A Natural Experiment Using Spatial Reception Data

Author

Listed:
  • Herault, Nicolas

    (University of Bordeaux)

  • Kollmann, Trevor

    (Swinburne University of Technology)

  • Thomson, Russell

    (Swinburne University of Technology)

Abstract

We estimate the causal effect of partisan media on voter behavior by exploiting a natural experiment in which Sky News Australia – a conservative 24-hour news channel – became freely available to 8 million people. Using comprehensive national polling-station-level electoral data and broadcast signal strength variation, we implement a continuous treatment difference-in-differences design comparing voting patterns in areas with and without access to the channel before and after its September 2018 free-to-air launch. We find that exposure to partisan media increased the conservative party's lead by 1.5 percentage points in Australia's 2019 federal election. These findings shed light on the role of partisan media in shaping electoral outcomes by influencing swing voters, not just by affecting who turns out to vote.

Suggested Citation

  • Herault, Nicolas & Kollmann, Trevor & Thomson, Russell, 2024. "Persuading Voters with Partisan TV News: A Natural Experiment Using Spatial Reception Data," IZA Discussion Papers 17452, Institute of Labor Economics (IZA).
    • Handle: RePEc:iza:izadps:dp17452
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    References listed on IDEAS

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    More about this item

    Keywords

    partisan news; elections; spatial economics;
    All these keywords.

    JEL classification:

    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
    • L82 - Industrial Organization - - Industry Studies: Services - - - Entertainment; Media
    • R19 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Other

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