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Check if your question is answered in the syllabus. Make sure the subject is informative. “Exam” is much less useful as a subject line than “Econ 101 exam conflict”. Start with “Dear Prof. Jones,” skip…

Are VATs regressive? No, not really. People think that sales taxes (or Value Added Taxes) are regressive because rich people are able to save a higher proportion of their income than poor people. This is…