1. Identify three or four barriers to entry that protect monopolists. Find a specific example of a company that uses each of the barriers that you identified to protect its monopoly status and explain how it uses the barriers. To what extent do you expect the barriers to persist over time? What might cause them to be mitigated or eliminated? Your response should be at least 150-225 words (2-3 paragraphs) in length. Be sure to reference at least one scholarly source to support your answer. 2. What makes the monopolistic competition model different from the monopoly model? Explain how the differences affect short- and long-run equilibrium. Your response should be at least 75-150 words (1-2 paragraphs) in length. Be sure to reference at least one scholarly source to support your answer. 3. Examine at least two benefits to companies implementing corporate social responsibility (CSR) and shared value strategies. Include at least two examples of companies that have adopted CSR or shared value, and discuss how they benefited from them. Your response should be at least 150-225 words (2-3 paragraphs) in length. Be sure to reference at least one scholarly source to support your