It is widely assumed that firms experiment with their online advertising to identify more profitable approaches to then increase their investment in more profitable advertising, increasing their overall performance. Generalizable evidence on the actual use of such experiment-based learning by...

Background: When the Zika outbreak became a global health emergency in early 2016, the scientific community responded with an increased output of Zika-related research. This upsurge in research was accompanied by editorials, news, and reports, many of which made their way into journals—the...