In a new BCA of the Communities That Care program designed to determine whether the CTC prevention system is a cost-beneficial intervention, led by Dr. Margaret Kuklinski, researchers estimated that CTC produced over $4,000 in benefits per youth through grade 12. It costs $556 per youth to implement CTC for 5 years. The net present benefit was $3,920. The benefit–cost ratio was $8.22 per dollar invested. The internal rate of return was 21%. Risk that investment would exceed b