Computational text analysis reveals that over 96 percent of sponsored social media posts are undisclosed, highlighting urgent regulatory concerns regarding online advertising compliance.
Daniel Ershov, Yanting He, and Stephan Seiler used a novel approach to identify undisclosed sponsored social media posts from text data, measuring the extent of advertising nondisclosure in a dataset composed of more than 100 million tweets. They found that over 96 percent of sponsored posts are undisclosed, constituting a pressing concern for regulators and practitioners.
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Ershov et al. (2026) studied this question.
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