Assessing the unidimensionality of political opinions. An indirect test of the persuasion bias
- Publisher:
- Elsevier
- Publication Type:
- Journal Article
- Citation:
- Journal of Economic Behavior and Organization, 2020, 174, pp. 469-477
- Issue Date:
- 2020-06-01
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1-s2.0-S0167268119303464-main.pdf | Published version | 1.42 MB |
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© 2019 In an influential paper, (DeMarzo et al., 2003) propose a modelf of persuasion bias whereby people are overly influenced by repetitive information. Such a persuasion bias leads political opinions to be unidimensional with individuals converging to a single “left-right” dimension on every issues. Using a large dataset on political opinions on a wide range of issues just before a presidential election in France, I test whether political opinions are indeed unidimensional. I find that political opinions are far from being unidimensional and I discuss what it means for the persuasion model.
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