We model a market for skill in short supply and high demand, where the presence of charlatans (professionals who sell service they do not deliver on) is an equilibrium outcome. In model, reducing number through regulation lowers consumer surplus because resulting reduction competition among producers. Producers can benefit from this reduction, potentially explaining we observe. The effect on to...

Background: Leptin, a 16-KDa peptide hormone secreted from theadipose tissue, plays an important role in the regulation of energyintake and expenditure and body weight regulation; furthermore,it has a regulatory function on the reproductive system. The aimof this study was to assess the relationship between serum leptinlevels and sex hormones in psoriatic patients and control groupand to determ...

abstract background: self-regulation is one of the current psychological concepts that have been known as a determinant of leisure time physical activity. due to cultural and social diversity in different societies and age groups, application of specific questionnaires is essential to perform investigations about physical activities. the aim of this study is development and evaluation of psycho...

Parental depression is linked to a myriad of child adjustment outcomes. To identify the potential processes between parents’ depressive symptoms and in early childhood, this cross-sectional study investigated mindful parenting children’s self-regulation as mediators. Participants were 320 Chinese families involving maritally intact mothers, fathers, children (49.01% girls) from 34.73 55.66 mont...