Although populist communication has become pervasive throughout Europe, many important questions on its political consequences remain unanswered. First, previous research has neglected the differential effects of populist communication on the Left and Right. Second, internationally comparative studies are missing. Finally, previous research mostly studied attitudinal outcomes, neglecting behavioral effects. To address these key issues, this paper draws on a unique, extensive, and comparative experiment in sixteen European countries (N = 15,412) to test the effects of populist communication on political engagement. The findings show that anti-elitist populism has the strongest mobilizing effects, and anti-immigrant messages have the strongest demobilizing effects. Moreover, national conditions such as the level of unemployment and the electoral success of the populist Left and Right condition the impact of populist communication. These findings provide important insights into the persuasiveness of populist messages spread throughout the European continent.

中文翻译：

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开始传播新闻：民粹主义传播对16个欧洲国家政治参与影响的比较实验。

尽管民粹主义传播在整个欧洲变得普遍，但有关其政治后果的许多重要问题仍未得到解答。首先，先前的研究忽略了民粹主义传播对左右派的不同影响。第二，国际比较研究缺失。最后，先前的研究主要研究态度结果，而忽略行为影响。为了解决这些关键问题，本文采用了在16个欧洲国家（N = 15,412）进行的独特，广泛且比较的实验，以检验民粹主义传播对政治参与的影响。研究结果表明，反精英民粹主义具有最强的动员作用，而反移民信息具有最强的复员作用。而且，诸如失业水平和民粹主义左派和右派的选举成功等国情制约了民粹主义传播的影响。这些发现为深入了解整个欧洲大陆民粹主义信息的说服力提供了重要见解。