Econ is often the study of margins. Margins r 1st derivatives. Calc & 4 marginally more advanced study, Linear Algebra, needed full stop.
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Comprehensive! More up-to-date than my Econ classes "back in the day." Solid principles w/ new application models. Thanks for sharing!
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What does 'modern' mean? The latest bullshit? That still couldn't predict the crash?
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