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Feasibility of using a gasoline tax to combat climate change. The student briefly described the relevant externality and gave a history of the gas tax in the U.S. Then, the student described several economic reasons why the gas tax has not been as effective as it could be. He then outlined some suggestions by experts on socially acceptable ways to implement higher taxes, and concluded with a recommendation on a particular method. This student used 7 sources (a mix of government sources and journal articles), and did not cite the textbook.
