Ahhh, but we do know. The Wikipedia article also says: "..at the Harvard Business School in the early 1960s, suggested that the Marketing Mix contained 4 elem

Ahhh, but we do know. The Wikipedia article also says: "..at the Harvard Business School in the early 1960s, suggested that the Marketing Mix contained 4 elements: product, price, place and promotion." And then: "Product: The product aspects of marketing deal with the specifications of the actual goods or services, and how it relates to the end-user's needs and wants." Market research has been a subset of marketing for over over four decades now - modern textbooks will give you the exact same information I quoted above. While I'm sure the market researcher was a lovely girl, she's no substitute for reading up on the matter.