Misery is not miserly

A study by researchers from Harvard, Carnegie Mellon, Stanford and Pittsburgh universities found sadness induced people to become self- focused which triggered a chain of emotions leading to extravagant tendencies.

The researches concluded that sadness caused “the person to feel that they and their possessions are worth little. That feeling increases willingness to pay more -- presumably to feel better about themselves.”

The so-called "misery is not miserly" phenomenon is well-known to psychologists, advertisers and personal shoppers alike, and has been documented in a similar study in 2004.

Study: Sadness impairs ability to spend wisely -- Newsday.com