Cell phones have quickly become taken as much for granted as electricity, They have had a major impact on our lives and the way that we perform everyday tasks. Many of these changes are apparent, while others we may not even be aware of. Assuming that cell phones are traded in a competitive market, use the demand-supply model to illustrate the changes in the market for cell phones over the last twenty years. Be imaginative in your answer and try as much as possible to relate the demand-side factors and the supply-side factors to the market under study. draw graphs to illustrate your answer.