It is a product research paper. I choose iPhone X. I attached more details in the document. I need 9 pages, double space. Please read carefully! Thanks!Hello, just read the requirement documents. I need to use 20 concept, expect below conceptsIncome Elasticity of Demand (normal, inferior, luxury)‡Uncertainty, Risk*Concentration Ratio, HHI?Porter’s Five Forces (counts as 3!)Opportunity/Implicit/Hidden Costs*(substitutes, complements)‡this website