Economics Research each market structure, monopoly, natural monopoly, oligopoly, on the Internet. Write a two- to three-page paper in APA Style analyzing the characteristics of each market structure. Consider the following to guide your research and writing. How is each market structure set up to maintain market share and maximize profits? What are the barriers to entry for each market structure? Utilizing economic principles, explain how consumers have reacted (over time) to each market structure? Has the government been involved in mitigating the impact of any or all of the market structures? Provide at least two examples of each market structure and how consumers are affected by the economics associated with each structure.