Final answer:
Government intervention methods in controlling market issues include blocking mergers, breaking up monopolies, and regulating business practices, while deregulating industries is not a common method.
Explanation:
Government intervention methods in preventing market issues like monopolies include blocking mergers, breaking up monopolies, and regulating business practices. One method that is not traditionally used by the government is deregulating industries. This action involves removing regulations and controls from specific industries, allowing market forces to dictate outcomes.
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