For our purposes, we can represent growing product diversity in the form of a "fashion triangle" (Figure 1.1). Apparel items at the very top of this triangle include dresses from Paris, Milan, and New York runways, which represent a very small share of apparel sold.
We can represent growing product diversity in the form of a "fashion triangle." Apparel items at the very top of this triange include from Paris, Milan , and New York, which is a very small share.