What is the effect on Price and Quantity exchanged in the market for Converse basketball shoes?
A. price would increase and quantity exchanged would decrease.
B. price and quantity exchanged would both decrease.
C. price would increase and quantity exchanged would be indeterminate.
D. price would be indeterminate and quantity exchanged would not change.
E. there is not enough information to determine either price or quantity.
I

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?