I was touched, and as I was rather peckish at the time I tucked straight into the chocolate. That got me thinking. Why did I value the chocolate bar so much? If the thank you note had included the cash value of the bar I would have been rather puzzled (it's just not the done thing) and maybe even insulted. I certainly would not have felt as appreciated as I did as I devoured the Milky Way.
Tons of research has shown that material gifts are appreciated more than the cash. This is strange; cash gives us more flexibility. A recent paper by Kube, Marechal and Puppe (2011) concludes that it really is the thought that counts. The more thought that has gone into a gift, the more we appreciate it, almost regardless of how useful the gift is to us.
So there we go; if anyone feels like thanking me in the near future... send a chocolate bar...
