Vergunst, F, Tremblay RE, Nagin D, et al. - In this large population-based sample of kindergarten children (n = 2,850) born in 1980 or 1981 in Quebec, Canada, who were followed up for 30 years, experts examined the correlation between behaviors at age 6 years and employment earnings at age 33 to 35 years. Irrespective of a person’s IQ and family background, behavioral ratings at 5-6 years were related to employment earnings 3 decades later. Inattention and aggression-opposition were related to lower annual employment earnings, and prosociality with greater earnings although only among male individuals and the only behavioral prognosticator of income among girls was inattention. Moreover, early monitoring and support for children exhibiting great inattention and for boys showing high aggression-opposition and low prosocial behaviors could have long-term benefits for those people and society.