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Fact-checking and warnings of misinformation are increasingly salient and prevalent components of modern news media and political communications. While many warnings about political misinformation are valid and enable people to reject misleading information, the quality and validity of misinformation warnings can vary widely. Replicating and extending research from the fields of social cognition and forensic psychology, we find evidence that valid retrospective warnings of misleading news can help individuals discard erroneous information, although the corrections are weak. However, when informative news is wrongly labeled as inaccurate, these false warnings reduce the news’ credibility. Invalid misinformation warnings taint the truth, lead individuals to discard authentic information, and impede political memory. As only a few studies on the tainted truth effect exist, our research helps to illuminate the less explored dark side of misinformation warnings. Our findings suggest general warnings of misinformation should be avoided as indiscriminate use can reduce the credibility of valid news sources and lead individuals to discard useful information.

This article explores the consequences of public and private spending on education at all levels, looking at skills and income inequality. We use data for 22 affluent democracies from 1960 or 1995 (depending on data availability) to 2017. High levels of public education spending consistently lower income inequality, both measured as wage dispersion and as the education premium. In contrast, higher levels of private education spending are associated with both higher wage dispersion and a higher education premium. We show that this effect works in part through differential skills acquisition. Public education spending raises the math scores of 15-years old students at the mean and at the 25th percentile, but private education spending has no effect on skills at these levels. We find the same pattern among skills of adults; public education spending raises skills at the 25th percentile and the mean; private spending has no effect. Finally, we also show that higher levels of adult skills indeed depress the education premium.