Economics is probably at work. Most psychology takes place in a clinical setting. Leadership gurus are employed at business schools, where enthusiasm is an entrance requirement and optimism the stock-in-trade.

• 经济学可能在这里发挥作用。大多数心理学研究发生在临床场合。领导艺术大师受雇于商学院,在那里热情是入门要求,而乐观则是行规。