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Is the Internet Causing Political Polarization? Evidence from Demographics

Author

Listed:
  • Levi Boxell
  • Matthew Gentzkow
  • Jesse M. Shapiro

Abstract

We combine nine previously proposed measures to construct an index of political polarization among US adults. We find that the growth in polarization in recent years is largest for the demographic groups least likely to use the internet and social media. For example, our overall index and eight of the nine individual measures show greater increases for those older than 75 than for those aged 18–39. These facts argue against the hypothesis that the internet is a primary driver of rising political polarization.

Suggested Citation

  • Levi Boxell & Matthew Gentzkow & Jesse M. Shapiro, 2017. "Is the Internet Causing Political Polarization? Evidence from Demographics," NBER Working Papers 23258, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:23258
    Note: POL
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    References listed on IDEAS

    as
    1. Liang, Che-Yuan & Nordin, Mattias, 2012. "The Internet, News Consumption, and Political Attitudes," Working Paper Series 2012:14, Uppsala University, Department of Economics.
    2. Matthew Gentzkow & Jesse M. Shapiro, 2011. "Ideological Segregation Online and Offline," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 126(4), pages 1799-1839.
    3. Halberstam, Yosh & Knight, Brian, 2016. "Homophily, group size, and the diffusion of political information in social networks: Evidence from Twitter," Journal of Public Economics, Elsevier, vol. 143(C), pages 73-88.
    4. Hetherington, Marc J., 2001. "Resurgent Mass Partisanship: The Role of Elite Polarization," American Political Science Review, Cambridge University Press, vol. 95(3), pages 619-631, September.
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    JEL classification:

    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior

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