Sadness leads to Shopping

According to this study sadness leads to more shopping. I was reading an AARP article about collecting and the author also talked about this phenomenon -funny how one man's addiction to mustard jars started because his baseball team lost. No wonder we are not only a consumerist society, but also the most depressed if pharmaceutical records can be trusted. In a vicious circle, buying leads to debt which leads to sadness which leads to more purchases.