On - the - job training is primary to the Theory of Human Capital .
, according to Becker ( 1962 ) and confirmed by Mincer ( 1974 ) , it clearly illustrates the effect of human capital on earnings , employment , and numerous other economic variables .
On - the - job training is primary to the Theory of Human Capital because , according to Becker ( 1962 ) and confirmed by Mincer ( 1974 ) , it clearly illustrates the effect of human capital on earnings , employment , and numerous other economic variables .