Its no new thing that advertising and marketing plays a very important role when it comes to running a business. To be able to reach your target audience and get the needed traffic, you need marketing and advertising. With that said, do you think marketing and advertising tends to affect the choice of your target audience? To my understanding i would say yes. I might not be interested in a particular product until i see an advert about it. Due to that advert i might start developing interest in that product until i finally decide to buy it.