Sustainable business (ur opinion)

Topic 1 (Chapter 2): What are the factors that make a sustainable competitive advantage sustainable? Name a company that has used technology to create a sustainable competitive advantage and identify what makes it sustainable. Is a firm that competes based on the features of technology engaged in operational effectiveness or strategic positioning? Provide an example not in the textbook. What are switching costs? Provide an example not in the textbook. What are network effects? Provide an example not in the textbook. What are Porters Five Forcers?