Information Frictions and Employee Sorting between Start-ups

Would workers apply to better firms if they were more informed about firm quality? Collaborating with 26 science-based start-ups, we create a custom job board and invite business school alumni to apply. The job board randomizes across applicants to show coarse expert ratings of all start-ups' science and/or business model quality. Making ratings visible strongly reallocates applications toward higher-rated firms. This reallocation holds, restricting to high-quality workers. Treatments operate in part by shifting worker beliefs about firms' right-tail outcomes. Despite these benefits, workers make posttreatment bets indicating highly overoptimistic beliefs about start-up success, suggesting a problem of broader informational deficits. (JEL D22, D83, J22, J23, J24, M13, M51)