Hi CB,

If the links to the two academic journal articles don't work (Zavestoski and Belk), here's the complete citation info you can use to look them up. I recommend using Google Scholar. It's pretty great.

"The social-psychological bases of anticonsumption attitudes" by Stephen Zavestoski
Psychology and Marketing
January 2002, Vol. 19, No. 2, pp. 149-165

"Possessions and the Extended Self" by Russell W. Belk

Journal of Consumer Research
September 1988, Vol. 15, No. 2, pp. 139-168