How Much Should We Believe Surveys?

You’ve probably seen a lot of surveys recently about how many Republicans believe the 2020 election was stolen, or that they support the January 6th insurrection on Capitol Hill, or that they don’t trust the vaccine. Do these responses predict their behavior in the real world? Or are they just partisan cheerleading?

 

Northwestern Political Scientist Mary McGrath looks into this question in her paper “Economic Behavior and The Partisan Perceptual Screen.” By combing through data about survey responses and spending patterns before and after presidential elections, she investigates whether partisans truly believe it when they say the economy is getting better when one of their own occupies the White House. If partisans do believe what they say, shouldn’t their financial decisions change accordingly? And if these decisions don’t change, what does that mean for how we should think about survey responses in general?

 

Paper Link: https://cpb-us-e1.wpmucdn.com/sites.northwestern.edu/dist/b/3288/files/2019/10/2017-McGrath-Partisan-Screen.pdf  

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