"The recent price wars in the supermarket and mobile phone industries have been beneficial to both consumers and their respective industries" Discuss critically , using all the recent theoretical models. make references to important microeconomic models. some examples (supply, Demand, market equilibrum, price discrimination, opportunity cost)

"The cost of mobile phone have fallen to such a level which , if this trend continues, would make telephony more affordable to much larger segments of the emerging markets population ", Discuss critically , using all the recent theoretical models . Make reference to important of macroeconomic objectives: some examples are :(Growth , inflation ,Unemployement ,GDP, Exchange rates