Assignment 1: Yahoo and Amazon: Building a Competitive AdvantageDue in Week 3and worth 300 pointsReview Case 21 How Amazon.com became the leading online retailer by 2011 and Case 23 Is Yahoo!s business model working in 2011? located in the textbook to complete this assignment.Write a six to eight (6-8) page paper in which you:Your assignment must follow these formatting requirements: