How LinkedIn Plans To Grow Hiring Solutions ?

Business Insider had published an article about "How LinkedIn Plans To Grow Its Biggest Business 1,100%"

John and Ronda Hunter written last July 1984 "Validity and utility of alternative predictors of job performance. Psychological Bulletin, No. 96, pp. 72-98" (old but still valid paper) and found that psychological testing is a better predictor of job performance than any other single measure. Psychological tests have a validity coefficient of 0.53, analysis of information provided by the curriculum: 0.37, checking references 0.26, the level of education attained: 0.22 and 0.14 only for the job interview!

As for matching job seekers with employers, the best predictor of job performance is: personality!!!
See paper: "Workers Behaving Badly: Personality at Age 18 Predicts Workplace Deviance at Age 32" by Dr. Kimdy Le

LinkedIn should include a personality test like the 16PF5 to assess personality of applicants.