Craigslist, a website that hosts job- and help-wanted ads, expanded rapidly across the states in the USA over a very short period of time, thereby changing abruptly the market structure faced by competing employment websites. We exploit this abrupt change to evaluate its impact on competing...

We measure firms' demand for workers' personality traits expressed in job ads and find that firms primarily demand workers who are extroverted, conscientious, and open-to-experience. The personality demand measures are correlated with the soft skills required on the job and produce intuitively...