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Wired Voters: The Effects of Internet Use on Voters’ Electoral Uncertainty

Published online by Cambridge University Press:  13 February 2014


This article examines whether voters’ use of the internet as a source of political news affects the extent to which they are certain of their vote choice in national-level elections. It employs data pertaining to the 2011 general election in Ireland, linking geographical information on broadband coverage with individual-level public opinion data from the 2011 Irish National Election Study. The resultant dataset allows the adoption of a quasi-experimental approach in our examination of the effects of online political newsgathering on voters’ electoral uncertainty. Implementing instrumental variables, the study finds consistent evidence of a causal relationship between the use of the internet as a source of political information and increased levels of political uncertainty among voters, ceteris paribus. These findings are robust to a range of model specifications and alternative operationalizations of dependent and independent variables.

Copyright © Cambridge University Press 2014 

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Free University Brussels, ULB (email:; Department of Political and Cultural Studies, Swansea University (email:; Department of International Relations, London School of Economics and Political Science (email: The authors would like to thank the Editor and the three anonymous reviewers for their constructive comments. Data replication and online appendices sets are available at


Aarts, Kees Semetko, Holli A.. 2003. The Divided Electorate: Media Use and Political Involvement. The Journal of Politics 65:759784.Google Scholar
Abadie, Alberto. 2003. Semiparametric Instrumental Variable Estimation of Treatment Response Models. Journal of Econometrics 113:231263.Google Scholar
Albright, Jeremy J. 2009. Does Political Knowledge Erode Party Attachments? A Review of the Cognitive Mobilization Thesis. Electoral Studies 28:284360.Google Scholar
Alesina, Alberto, Devleeschauwer, Arnaud, Easterly, William, Kurlat, Sergio Wacziarg, Romain. 2003. Fractionalization. Journal of Economic Growth 8:155194.Google Scholar
Anderson, Paul 2007. What is Web 2.0? Ideas, Technologies and Implications for Education. JISC Technology & Standards Watch 2007. Available from, accessed 12 December 2012.Google Scholar
Angrist, Joshua D. Pischke, Jörn-Steffen. 2012. Mostly Harmless Econometrics: An Empiricist's Companion. Princeton, NJ: Princeton University Press.Google Scholar
Banducci, Susan Karp, Jeffrey. 2003. How Elections Change the Way Citizens View the Political System: Campaigns, Media Effects and Electoral Outcomes in Comparative Perspective. British Journal of Political Science 33:443467.Google Scholar
Bartels, Larry M. 2010. The Study of Electoral Behavior. In The Oxford Handbook of American Elections, edited by Jan E. Leighley, 239262. Oxford: Oxford University Press.Google Scholar
Benoit, Kenneth Laver, Michael. 2003. Estimating Irish Party Policy Positions Using Computer Wordscoring: The 2002 Election – A Research Note. Irish Political Studies 18:97107.Google Scholar
Berglund, Frode, Holmberg, Sören, Schmidt, Hermann Thomassen, Jacques. 2005. Party Identification and Party Choice. In The European Voter: A Comparative Study of Modern Democracies, edited by Jacques Thomassen, 106123. Oxford: Oxford University Press.Google Scholar
Bhuller, Manudeep, Havnes, Tarjei, Leuven, Edwin, Mogstad, Magne. 2011. Broadband Internet: An Information Superhighway to Sex Crime? Institute for the Study of Labour Discussion Paper No. 5675. Available from, accessed 12 December 2012.Google Scholar
Bimber, Bruce A. Davis, Richard. 2003. Campaigning Online: The Internet in US Elections. New York: Oxford University Press.Google Scholar
Blackwell, Matthew, Iacus, Stefano, King, Gary Porro, Giuseppe. 2009. Coarsened Exact Matching in Stata. Stata Journal 9:524546.Google Scholar
Boulianne, Shelley. 2009. Does Internet Use Affect Engagement? A Meta-Analysis of Research. Political Communication 26:193211.CrossRefGoogle Scholar
Boyd, Danah Ellison, Nicole. 2007. Social Network Sites: Definition, History and Scholarship. Journal of Computer Mediated Communication 13:210230.Google Scholar
Brandenburg, Heinz van Egmond, Marcel. 2012. Pressed into Party Support? Media Influence on Partisan Attitudes During the 2005 UK General Election Campaign. British Journal of Political Science 42:441463.Google Scholar
Campbell, Angus, Converse, Phillip E., Miller, Warren E. Stokes, Donald. 1967. The American Voter. Chicago: The University of Chicago Press.Google Scholar
Chadwick, Andrew. 2009. Web 2.0: New Challenges for the Study of E-Democracy in an Era of Informational Exuberance. Journal of Law and Policy for the Information Society 51:942.Google Scholar
Chadwick, Andrew. 2012. Recent Shifts in the Relationship Between the Internet and Democratic Engagement in Britain and the United States: Granularity, Informational Exuberance, and Political Learning. In Digital Media and Political Engagement Worldwide: A Comparative Study, edited by Eva Anduiza, Michael Jensen and Laia Jorba, 3956. Cambridge: Cambridge University Press.Google Scholar
Clarke, Harold D. Stewart, Marianne C.. 1998. The Decline of Parties in the Minds of Citizens. Annual Review of Political Science 1:357378.CrossRefGoogle Scholar
Conover, Michael D., Ratkiewicz, Jacob, Gonçalves, Bruno, Flammini, Alessandro, Menczer, Filippo. 2011. Political Polarization on Twitter, Proceedings of the 5th International Conference on Weblogs and Social Media. Barcelona, Spain, 17–21 July 2011.Google Scholar
Converse, Phillip E. 1962. Information Flow and the Stability of Partisan Attitudes. Public Opinion Quarterly 26:578599.CrossRefGoogle Scholar
Dalton, Russell J. 1984. Cognitive Mobilization and Partisan Dealignment in Advanced Industrial Democracies. The Journal of Politics 46:264284.Google Scholar
Dalton, Russell J. 2000. The Decline of Party Identifications. In Parties Without Partisans: Political Change in Advanced Industrial Democracies, edited by Russell J. Dalton and Martin P. Wattenberg, 937. Oxford: Oxford University Press.Google Scholar
Dalton, Russell J. 2007. Partisan Mobilization, Cognitive Mobilization and the Changing American Electorate. Electoral Studies 26:274286.Google Scholar
Dalton, Russell J. 2012. Apartisans and the Changing German Electorate. Electoral Studies 31:3545.Google Scholar
Dalton, Russell J., MacAllister, Ian Wattenberg, Martin P.. 2000. The Consequences of Partisan Dealignment. In Parties Without Partisans: Political Change in Advanced Industrial Democracies, edited by Russell J. Dalton and Martin P. Wattenberg, 3862. Oxford: Oxford University Press.Google Scholar
Daudt, Harry. 1961. Floating Voters and the Floating Vote. Leiden: Stenfert Kroese.Google Scholar
Della Vigna, Stefano Kaplan, Ethan. 2007. The Fox News Effect: Media Bias and Voting. Quarterly Journal of Economics 122:11871234.Google Scholar
Della Vigna, Stefano, Enikolopov, Ruben, Mironova, Vera, Petrova, Maria, Zhuravskya, Ekaterina 2011. Unintended Media Effects in a Conflict Environment: Serbian Radio and Croatian Nationalism. National Bureau of Economic Research Working, No. 16989. Available from, accessed 9 December 2012.Google Scholar
Enikolopov, Ruben, Petrova, Maria Zhuravskaya, Ekaterina. 2011. Media and Political Persuasion: Evidence from Russia. The American Economic Review 101:32533285.Google Scholar
Franklin, Mark N., Mackie, Thomas T. Valen, Henry. eds. 1992. Electoral Change: Responses to Evolving Social and Attitudinal Structures in Western Nations. Cambridge: Cambridge University Press.Google Scholar
Gallagher, Michael. 2011. Ireland's Earthquake Election: Analysis of the Results. In How Ireland Voted 2011: The Full Story of Ireland's Earthquake Election, edited by Michael Gallagher and Michael Marsh Dublin, 139172. Palgrave: McMillan.Google Scholar
Garrett, R. Kelly. 2009. Echo Chambers Online? Politically Motivated Selective Exposure Among Internet News Users. Journal of Computer Mediated Communication 14:265285.CrossRefGoogle Scholar
Garrett, R. Kelly Resnick, Paul. 2011. Resisting Political Fragmentation on the Internet. Dedalus 140:108120.CrossRefGoogle Scholar
Garrett, R. Kelly, Carnahan, Dustin Lynch, Emily K.. 2011. A Turn Toward Avoidance? Selective Exposure to Online Political Information, 2004–2008. Political Behavior, DOI: 10.1007/s11109-011-9185-6.Google Scholar
Gentzkow, Matthew. 2006. Television and Voter Turnout. Quarterly Journal of Economics 121:931972.Google Scholar
Gentzkow, Matthew Shapiro, Jesse M.. 2011. Ideological Segregation Online and Offline. The Quarterly Journal of Economics 126:17991839.Google Scholar
Gentzkow, Matthew, Shapiro, Jesse M. Sinkinson, Michael. 2011. The Effect of Newspaper Entry and Exit on Electoral Politics. American Economic Review 101:29803018.Google Scholar
Gibson, Rachel McAllister, Ian. 2006. Does Cyber Campaigning Win Votes? Online Communication in the 2004 Australian Election. Journal of Elections Public Opinion and Parties 16:243263.Google Scholar
Hayes, Danny Guardino, Matt. 2012. The Influence of Foreign Voices on US Public Opinion. American Journal of Political Science 55:830850.Google Scholar
Howe, Neil Strauss, William. 2000. Millenials Rising: The Next Great Generation. New York: Vintage.Google Scholar
Iacus, Stefano, King, Gary Porro, Giuseppe. 2012. Causal Inference Without Balance Checking: Coarsened Exact Matching. Political Analysis 20:124.Google Scholar
Imai, Kosuke, Tingley, Dustin Yamamoto, Teppei. 2013. Experimental Designs for Identifying Causal Mechanisms. Journal of the Royal Statistical Society Series A (Statistics in Society) 176:551.Google Scholar
Imai, Kosuke, Keele, Luke, Tingley, Dustin Yamamoto, Teppei. 2011. Unpacking the Black Box of Causality: Learning About Causal Mechanisms from Experimental and Observational Studies. American Political Science Review 105:765789.Google Scholar
Imbens, Guido W. Wooldridge, Jeffrey M.. 2009. Recent Developments in the Econometrics of Program Evaluation. Journal of Economic Literature 47:586.CrossRefGoogle Scholar
Inglehart, Ronald. 1990. Culture Shift in Advanced Industrial Society. Princeton, NJ: Princeton University Press.Google Scholar
Katz, Richard S. Mair, Peter. eds. 1992. Party Organizations: A Data Handbook on Party Organizations in Western Democracies, 1960–90. London: Sage.Google Scholar
Kern, Holger Lutz Hainmueller, Jens. 2009. Opium for the Masses: How Foreign Media Can Stabilize Authoritarian Regimes. Political Analysis 17:377399.Google Scholar
Kroh, Martin, van der Brug, Wouter van der Eijk, Cees. 2007. Prospects for Electoral Change. In European Elections and Domestic Politics: Lessons from the Past and Scenarios for the Future (Contemporary European politics and society), edited by Wouter van der Brug and Cees van der Eijk, 209226. Notre Dame: University of Notre Dame Press.Google Scholar
Laakso, Markuu Taagepera, Rein. 1979. Effective Number of Parties: A Measure with Application to West Europe. Comparative Political Studies 12:327.Google Scholar
Ladd, Jonathan McDonald Lenz, Gabriel S.. 2009. Exploiting a Rare Communication Shift to Document the Persuasive Power of News Media. American Journal of Political Science 53:394410.CrossRefGoogle Scholar
Leahy, Pat. 2011. Campaign Strategies and Political Marketing. In How Ireland Voted 2011: The Full Story of Ireland's Earthquake Election, edited by Michael Gallagher and Michael Marsh, 6889. Dublin: Palgrave McMillan.Google Scholar
Lipset, Seymour Martin Rokkan, Stein. 1967. Party Systems and Voter Alignments: Cross-National Perspectives. Toronto: The Free Press.Google Scholar
Mair, Peter. 2005. Democracy Beyond Parties. Irvine: University of California, Center for the Study of Democracy.Google Scholar
Mair, Peter 2011. One of Europe's Most Volatile Elections. 28 February. Available from, accessed 3 December 2012.Google Scholar
Mair, Peter van Biezen, Ingrid. 2001. Party Membership in Twenty European Democracies: 1980-2000. Party Politics 7:521.CrossRefGoogle Scholar
Marsh, Michael. 2006. Party Identification in Ireland: An Insecure Anchor for a Floating Party System. Electoral Studies 25:489508.CrossRefGoogle Scholar
Mayer, William G. 2008. ‘What Exactly is a Swing Voter? Definition and Measurement’. In The Swing Voter in American Politics, edited by William G. Mayer, 132. Washington, DC: Brookings Institution Press.Google Scholar
McAllister, Ian. 2002. Calculating or Capricious? The New Politics of Late Deciding Voters. In Do Political Campaigns Matter? Campaign Effects in Elections and Referendums, edited by David Farrell and Rudiger Schmitt-Beck, 2240. London: Routledge.CrossRefGoogle Scholar
McLuhan, Marshall. 1964. Understanding Media. New York: Signet Books.Google Scholar
McMenamin, Iain, Flynn, Roderick, O'Malley, Eoin Rafter, Kevin. 2013. Commercialism and Election Framing: A Content Analysis of Twelve Newspapers in the 2011 Irish General Election. The International Journal of Press/Politics 18:167187.Google Scholar
Mondak, Jeffrey J. 1995. Nothing to Read: Newspapers and Elections in a Social Experiment. Ann Arbor: University of Michigan Press.CrossRefGoogle Scholar
Morozov, Evgeny. 2010. The Net Delusion: The Dark Side of Internet Freedom. London: Allen Lane.Google Scholar
Munson, Sean, Resnick, Paul 2010. Presenting Diverse Political Opinions: How and How Much. CHI'10: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, 10–15 April 2010, Atlanta, GA, USA.Google Scholar
Mutz, Diana C. Martin, Paul S.. 2001. Facilitating Communication Across Lines of Political Difference: The Role of Mass Media. American Political Science Review 95:97114.Google Scholar
Nie, Norman H., Miller, Darwin W., Golde, Saar, Butler, Daniel M. Winneg, Kenneth. 2010. The World Wide Web and the U.S. Political News Market. American Journal of Political Science 54:428439.CrossRefGoogle Scholar
Norris, Pippa. 2000. A Virtuous Circle: Political Communications in Postindustrial Societies. New York: Cambridge University Press.Google Scholar
Norris, Pippa. 2001. The Digital Divide. Cambridge: Cambridge University Press.Google Scholar
O'Malley, Eoin. 2008. Why is There No Radical Right Party in Ireland? West European Politics 31:960967.Google Scholar
Papacharissi, Zizi Rubin, Alan M.. 2000. Predictors of Internet Use. Journal of Broadcasting & Electronic Media 44:175196.Google Scholar
Pariser, Eli. 2011. The Filter Bubble: What the Internet Is Hiding From You. New York: Penguin Press.Google Scholar
Pharr, Susan Putnam, Robert D.. eds. 2000. Disaffected Democracies: What's Troubling the Trilateral Countries?. Princeton, NJ: Princeton University Press.CrossRefGoogle Scholar
Putnam, Robert. 2000. Bowling Alone. The Collapse and Revival of American Community. New York: Simon & Schuster.Google Scholar
Putnam, Robert D., Pharr, Susan J. Dalton, Russell J.. 2000. Introduction: What's Troubling the Tri-lateral Democracies. In Disaffected Democracies, edited by Robert D. Putnam and Susan J. Pharr, 331. Princeton, NJ: Princeton University Press.Google Scholar
Rosenbaum, Paul R. 2002. Observational Studies, 2nd edition. New York: Springer.Google Scholar
Rubin, Donald B. 1974. Estimating Causal Effects of Treatments in Randomized and Nonrandomized Studies. Journal of Educational Psychology 66:688701.Google Scholar
Shirky, Clay. 2010. Cognitive Surplus: Creativity and Generosity in a Connected Age. New York: Penguin.Google Scholar
Sudulich, Maria Laura Wall, Matthew. 2010. ‘Rewarding the Wealthy’ versus ‘Looking After the Poor’: Affective Perception of ‘Right’ and ‘Left’ by Candidates in the 2007 Irish General Elections. Irish Political Studies 25:95106.Google Scholar
Sundar, Shyam. 2009. Media Effects 2.0. Social and Psychological effects of Communication Technologies. In The SAGE Handbook of Media Process and Effects, edited by Robin L. Nabi and Mary Beth Oliver, 545560. Thousand Oaks, CA: Sage Publications.Google Scholar
Sunstein, Cass. 2001. Princeton, NJ: Princeton University Press.Google Scholar
Sunstein, Cass. 2012. 2.0. Princeton, NJ: Princeton University Press.Google Scholar
Tewksbury, David Rittenberg, Jason. 2012. News on the Internet: Information and Citizenship in the 21st Century. Oxford: Oxford University Press.CrossRefGoogle Scholar
Trenaman, Joseph McQuail, Dennis. 1961. Television and Political Image. London: Methuen.Google Scholar
Valentino, Nicholas A., Banks, Antoine J., Hutchings, Vincent L. Davis, Anne K.. 2009. Selective Exposure in the Internet Age: The Interaction Between Anxiety and Information Utility. Political Psychology 30:591613.Google Scholar
van der Brug, Wouter. 2010. Structural and Ideological Voting in Age Cohorts. West European Politics 33:586607.Google Scholar
van der Eijk, Cees Niemoller, Broer. 1983. Electoral Change in the Netherlands: Empirical Results and Methods of Measurement. Amsterdam: CT Press.Google Scholar
Wall, Matthew Sudulich, Maria Laura. 2011. Internet Explorers. The On-line Campaign. In How Ireland Voted 2011: The Full Story of Ireland's Earthquake Election, edited by Michael Gallagher and Michael Marsh, 89106. Dublin: Palgrave McMillan.Google Scholar
Weeks, Liam. 2009. Parties and the Party System. In Politics in the Republic of Ireland, edited by John Coakley and Michael Gallagher, 137168. London: Routledge.Google Scholar
Wooldridge, Jeffrey. 2009. Introductory Econometrics: A Modern Approach. Mason, OH: South-Western.Google Scholar
Zaller, John. 1992. The Nature and Origins of Mass Opinion. New York: Cambridge University Press.Google Scholar
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