There are two groups of firms below.

• Group 1: firms in the retail sector (e.g. Amazon;Wal-Mart;Target; Kohl's; Sears; Macy's)
• Group 2: firms in the wireless services industry (e.g.Verizon; AT & T; Sprint/T-Mobile) (this about telecommunication services, not about the sale of phones)

For each group determine and explain if the group is monopolistic competitive or an oligopoly. You need tospecific for both in which market structure the firms operate)

Then choose one of the firms from one group.Using a Porter's analysis what are the threat to profitability?