Extended Data Fig. 4: Effects by search duration within a session and for slow and fast deciders.
From: Monitoring hiring discrimination through online recruitment platforms

a, Effect of ethnicity on contact rate depending on the length of a session for immigrant jobseekers from Europe (in blue) and from outside of Europe (in red). Dots with horizontal lines indicate point estimates with cluster-robust 95% confidence intervals from OLS regression (n = 1,378,011 profile views). The estimates are derived from interactions between the indicators of ethnicity and indicators of the time elapsed since the start of the session. A session is defined as the time at which the recruiter logs into Job-Room until he or she logs off or closes the browser window. Longer sessions typically encompass several searches. As recruiters vary in their average session length, and these compositional differences can influence our results, the sample is restricted to sessions that take at least 30 min. The regressions control for session instead of search-fixed effects. Swiss jobseekers are used as the reference category. b, Effects of ethnicity on contact rate depending on the average decision time of a recruiter. Dots with horizontal lines indicate point estimates with cluster-robust 95% confidence intervals from OLS regression. The sample is restricted to recruiters who conduct at least 6 searches and view at least 12 profiles. We use a random subset of one third of searches per recruiter to assign recruiters into one of four groups: fast deciders (lowest quartile), rather fast deciders (second quartile), rather slow deciders (third quartile) and slow deciders (highest quartile). The figure shows the ethnic penalties estimated separately for each group of recruiters using the test sample (the remaining two thirds of searches per recruiter). The average time that recruiters are looking at jobseekers’ profiles in the test sample are 5.7 s for fast deciders (n = 303,934 profile views), 9.9 s for rather fast deciders (n = 545,538 profile views), 15.4 s for rather slow deciders (n = 690,989 profile views) and 31.7 s for slow deciders (n = 364,018 profile views).