Question

How can I prove that advertising GREATLY influences in shaping consumer's purchase decision?

So far, I have peer pressure, discounts...I'm not sure if they're even strong ideas :?
Ms. Sue
To prove that advertising GREATLY influences consumer's decisions, you'd need to cite studies showing the purchases made for products that weren't advertised were less than for products that were heavily advertised.
Mark
ok, that will help me with my proofs, but I need ideas on what points to use...