Large applicant pools are often dramatically filtered with strategies to find “people like me” such as alumni campus recruiting and employee referral programs. This can mean that over 80% of candidates are never even seriously considered. Those who are ignored are significantly more likely to be underrepresented minorities.
Experimental studies have repeatedly shown that changing only the name on a resume (e.g., to signal race or gender) affects evaluations by HR personnel. Researchers have also found that implicit bias training is largely ineffective at improving the fairness of the hiring process.