This study extends findings on the effects of intensive applied behavior analytic treatment for children with autism who began treatment at a mean age of 5.5 years. The behavioral treatment group (n = 13, 8 boys) was compared to an eclectic treatment group (n = 12, 11 boys). Assignment to groups was made independently based on the availability of qualified supervisors. Both behavioral and eclec...

This paper studies effects of price floors in a simple model of vertical product differentiation. We find that even non-binding price floors can increase quality on the market, if the cost of quality is sufficiently low. Where a binding price floor does not change the equilibrium quality, it makes consumers worse off. There is also a possibility of overinvestment into quality as a result of the...

This paper presents simple proofs of the principal results of the Perron-Frobenius theory for linear mappings on finite-dimensional spaces which are nonnegative relative to a general partial ordering on the space. The principal tool for these proofs is an application of the theory of norms in finite dimensions to the study of order inequalities of the form Ax S ax, x è 0 where A ^ 0. This appro...

Beauty is in the eye of the beholder. How attractive someone is perceived to be depends on the individual or cultural standards to which this person is compared. But although comparisons play a central role in the way people judge the appearance of others, the brain processes underlying attractiveness comparisons remain unknown. In the present experiment, we tested the hypothesis that attractiv...