Explain duopoly and monopolistic competition market structutres

1- Explain duopoly and monopolistic competition market
structures, and identify the key factors that distinguish them.
2- Choose two different industries from your home country representing
duopoly and monopolistic competition, and identify their key characteristics in relation to the factors used to differentiate between the market structures. Using the real data from your case studies analyse the behaviour of firms and market outcome for each case study.