Indicate which barrier to entry appropriately explains why a monopoly exists in each scenario? a. In the natural gas industry, low

Indicate which barrier to entry appropriately explains why a monopoly exists in each scenario?

a. In the natural gas industry, low average total costs are obtained only through large-scale production. In other words, the initial cost of setting up all the necessary pipes and hoses makes it risky and, most likely, unprofitable for competitors to enter the market.
b. The Aluminum Company of America (Alcoa) formerly controlled all U.S. sources of bauxite, a key component in the production of aluminum. Given that Alcoa did not sell bauxite to any other companies, Alcoa was a monopolist in the U.S. aluminum industry from the late-nineteenth century until the 1940s.
c. Patents are granted to inventors of a product or process for a certain number of years. The reason for this is to encourage innovation in the economy. Without the existence of patents, it is argued that research and development for improved pharmaceutical products is unlikely to take place, since there’s nothing preventing another firm from stealing the idea, copying the product, and producing it without incurring the development costs.


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