Daily Archives: November 27, 2012

A charity fundraiser told me recently that it was a rule of thumb in philanthropic circles that you should thank donors seven times.

Apart from online references to “tradition”, “common wisdom” and, inevitably, “Chinese custom”, I’ve found no empirical research to support this magic number. Some experts on charitable giving have never heard of the idea; those who have are divided about whether it is even a useful maxim.