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Political Polarization and Expected Economic Outcomes

Author

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  • Coibion, Olivier
  • Gorodnichenko, Yuriy
  • Weber, Michael

Abstract

We use a large-scale representative survey of households from October 19-21 that elicits respondents’ expectations about the presidential election’s outcome as well as their economic expectations to document several new facts. First, people disagree strongly about the likely outcome of the election, despite widespread publicly available polling information. Most Democrats are very confident in a Biden win while most Republicans are very confident in a Trump win. Second, respondents predict a fairly rosy economic scenario if their preferred candidate wins but a dire one if the other candidate wins. Since most respondents are confident in their favored outcome, unconditional forecasts are similar across parties despite the fact that underlying probability distributions and conditional forecasts are very different. Third, when presented with recent polling data, most voters change their views by little unless they are independent and/or have relatively weak priors about the outcome. Information that emphasizes the uncertainty in polling data has larger effects in terms of reducing polarization in expected probabilities over different electoral outcomes. Fourth, exogenous information that changes individuals’ probability distribution over electoral outcomes also changes their unconditional forecasts in a corresponding manner. These changes in economic expectations in turn are likely to affect household economic decisions.
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Suggested Citation

  • Coibion, Olivier & Gorodnichenko, Yuriy & Weber, Michael, 2020. "Political Polarization and Expected Economic Outcomes," Department of Economics, Working Paper Series qt9h51c373, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
  • Handle: RePEc:cdl:econwp:qt9h51c373
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    Cited by:

    1. Olivier Coibion & Yuriy Gorodnichenko & Michael Weber, 2021. "Fiscal Policy and Households’ Inflation Expectations: Evidence from a Randomized Control Trial," NBER Working Papers 28485, National Bureau of Economic Research, Inc.
    2. Çekin, Semih Emre & Polattimur, Hamza, 2025. "Televised inflation: Measuring TV news coverage and its effect on household expectations," ZEW Discussion Papers 25-051, ZEW - Leibniz Centre for European Economic Research.
    3. Kempf, Elisabeth & Luo, Mancy & Schafer, Larissa & Tsoutsoura, Margarita, 2022. "Does Political Partisanship Cross Borders? Evidence from International Capital Flows," Working Papers 316, The University of Chicago Booth School of Business, George J. Stigler Center for the Study of the Economy and the State.
    4. Hayo, Bernd & Méon, Pierre-Guillaume, 2024. "Preaching to the agnostic: Inflation reporting can increase trust in the central bank but only among people with weak priors," Journal of International Money and Finance, Elsevier, vol. 142(C).
    5. Deniz Igan & Thomas Lambert & Prachi Mishra & Eden Quxian Zhang, 2025. "The Politics of the Paycheck Protection Program," The Review of Corporate Finance Studies, Society for Financial Studies, vol. 14(4), pages 1083-1122.
    6. Kuang, Pei & Luca, Davide & Wei, Zhiwu, 2025. "Ballots, Budgets and Bricks: Brexit and the Polarisation of Individual Economic Behaviours," MPRA Paper 125104, University Library of Munich, Germany.
    7. Diego Marino Fages, 2024. "Motivated Forecasts: Experimental Evidence from the Presidential Elections in Argentina," Discussion Papers 2024-08, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
    8. Dagostino, Ramona & Gao, Janet & Ma, Pengfei, 2023. "Partisanship in loan pricing," Journal of Financial Economics, Elsevier, vol. 150(3).
    9. Boumans, Dorine & Gründler, Klaus & Potrafke, Niklas & Ruthardt, Fabian, 2024. "Political leaders and macroeconomic expectations: Evidence from a global survey experiment," Journal of Public Economics, Elsevier, vol. 235(C).
    10. Ambrocio, Gene & Hasan, Iftekhar, 2022. "Belief polarization and Covid-19," Bank of Finland Research Discussion Papers 10/2022, Bank of Finland.
    11. Pei Kuang & Michael Weber & Shihan Xie, 2025. "Central Bank Communication with the Polarized Public," NBER Working Papers 33524, National Bureau of Economic Research, Inc.
    12. Zakharov, Alexei & Chapkovski, Philipp, 2025. "The effect of war on redistribution preferences," Journal of Public Economics, Elsevier, vol. 241(C).
    13. Kuang, Pei & Luca, Davide & Wei, Zhiwu & Yao, Yao, 2023. "Great or grim? Disagreement about Brexit, economic expectations and household spending," LSE Research Online Documents on Economics 119200, London School of Economics and Political Science, LSE Library.
    14. Ester Faia & Andreas Fuster & Vincenzo Pezone & Basit Zafar, 2024. "Biases in Information Selection and Processing: Survey Evidence from the Pandemic," The Review of Economics and Statistics, MIT Press, vol. 106(3), pages 829-847, May.
    15. Carola Conces Binder & Rupal Kamdar & Jane M. Ryngaert, 2024. "Partisan Expectations and COVID-Era Inflation," NBER Chapters, in: Inflation in the COVID Era and Beyond, National Bureau of Economic Research, Inc.
    16. Bao, Te & Wei, Lijia & Yu, Yang, 2022. "The impact of information interventions on public opinion on social media regulation: Evidence from a survey on Twitter’s Trump Ban," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 101(C).
    17. Sandri, Damiano & Grigoli, Francesco & Gorodnichenko, Yuriy & Coibion, Olivier, 2023. "Keep Calm and Bank On: Panic-Driven Bank Runs and the Role of Public Communication," CEPR Discussion Papers 18448, C.E.P.R. Discussion Papers.
    18. Arntz, Melanie & Blesse, Sebastian & Doerrenberg, Philipp, 2022. "The end of work is near, isn't it? Survey evidence on automation angst," ZEW Discussion Papers 22-036, ZEW - Leibniz Centre for European Economic Research.
    19. Bui, Dzung & Dräger, Lena & Hayo, Bernd & Nghiem, Giang, 2023. "Macroeconomic expectations and consumer sentiment during the COVID-19 pandemic: The role of others’ beliefs," European Journal of Political Economy, Elsevier, vol. 77(C).
    20. DiGiuseppe, Matthew & Garriga, Ana Carolina & Kern, Andreas, 2025. "Partisan Bias in Inflation Expectations," MPRA Paper 124391, University Library of Munich, Germany.
    21. Li, Pei & Tang, Leo & Cloyd, C. Bryan, 2024. "Political polarization and state government bonds," Global Finance Journal, Elsevier, vol. 63(C).
    22. Farhart, Christina E. & Struby, Ethan, 2026. "Inflation expectations and political polarization: Evidence from the cooperative election study," Journal of Macroeconomics, Elsevier, vol. 87(C).
    23. Jaerim Choi & Sunghun Lim, 2023. "Tariffs, agricultural subsidies, and the 2020 US presidential election," American Journal of Agricultural Economics, John Wiley & Sons, vol. 105(4), pages 1149-1175, August.

    More about this item

    Keywords

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    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • C83 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Survey Methods; Sampling Methods
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations
    • J21 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Labor Force and Employment, Size, and Structure
    • J26 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Retirement; Retirement Policies

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