Generic vs National

Shin expects the proliferation of generics to continue until store shelves in the United States look more like European countries such as Switzerland, Spain and the United Kingdom, where store brands account for 40 percent or more of sales. But don’t expect national brands to go away, he says.
http://news.ufl.edu/articles/2017/08/are-store-brands-just-as-good-an-expert-weighs-in.php