Guéguen N, Legoherel P
Laboratoire GRESICO, IUT de Vannes-Département TC, Université de Bretagne-Sud, France.
Psychol Rep. 2000 Aug;87(1):223-6. doi: 10.2466/pr0.2000.87.1.223.
Previous research has demonstrated that a pleasant drawing (a smiling face) on a restaurant bill increased the number of tips left by clients. A similar experiment was carried out using a drawing of the sun since it is known that tips increase on sunny days. The experiment was carried out in local bars and involved clients who have ordered an espresso coffee. Analysis showed that the drawing of the sun led clients to leave a tip more frequently than when this drawing is not present. The size of the tip left was also higher. The hypothesis of the creation of a positive frame of mind by this stimulus is discussed.
先前的研究表明，餐厅账单上的一张令人愉悦的图画（一张笑脸）会增加顾客留下的小费数量。由于众所周知在晴天小费会增加，因此使用一幅太阳的图画进行了类似的实验。该实验在当地酒吧进行，参与实验的是点了意式浓缩咖啡的顾客。分析表明，与没有这幅画时相比，太阳的图画会让顾客更频繁地留下小费。留下的小费金额也更高。文中讨论了这种刺激创造积极心态的假设。
