“…In particular, for a variety of dimensions of behavior and for many labor market outcomes, a change in noncognitive skills from the lowest to the highest level has an effect on behavior that is comparable to or greater than a corresponding change in cognitive skills. An emerging body of literature also finds that "psychic" costs explain a range of economic and social behavior (see, e.g., Carneiro, Hansen, and Heckman (2003), Carneiro and Heckman (2003), Cunha, Heckman and Navarro (2005), Heckman, Lochner and Todd (2006)). This is important because there are numerous settings that represent competitive situations that involve cognitive performance (e.g., test taking, student competition in schools, competitions for promotion in certain firms and organizations, and others).…”