From an A.P. article:
Researchers from the university’s marketing and psychology departments questioned 100 children about their attitudes to a range of products as part of a study on branding. They found Barbie provoked the strongest reaction, with youngsters reporting “rejection, hatred and violence,” Nairn said.
“The meaning of ‘Barbie’ went beyond an expressed antipathy; actual physical violence and torture towards the doll was repeatedly reported, quite gleefully, across age, school and gender,” she said.
I find it interesting that Barbie is apparently hated and mutilated more often than other toys (including, one presumes, other female dolls). And I have to admit, I love the idea of gleeful little girls microwaving Barbies to death.
UPDATE: Be sure to read this post on Capitalism Bad; Tree Pretty.