Yvonne knows her firm must look at everything it does from a consumer's point of view. one major difficulty is that consumers' change(s) over time. multiple choice ethnic background needs, wants, and ability to purchase culture just-in-time processes demographics

Needs, wants, and ability to purchas

Explanation:

There is no reason to focus on consumer needs thousands of years ago. But we can say that technological advances and communication are wreaking havoc in this regard. Trends and fashions mark each day more than we want to obtain, consume and buy. And that has multiplied by a thousand in the last hundred years