I need scholarly articles (or media sources that go into decent depth)
discussing whether buying a product is equivalent to voting for it,
and for the company that makes it. However, I need articles that
*disagree* with this assumption - that posit, and prove, that buying
is *not* voting.

(This is a common supposition of consumer activists - to "vote with
one's dollar", as it were.)

Also, I'd like to have some statements by large corporations
supporting their view - i.e. that because their products are being
bought highly, their success proves that people like what they're
doing, and so they're justified in doing so.

Thanks!

(I would prefer thoroughness over speed; these are for a term paper
for one of my classes.)