01:220:102 Chapter Notes - Chapter 1: Macroeconomics, Rush Hour, Empiricism

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01:220:102 Full Course Notes
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01:220:102 Full Course Notes
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Chapter 1: the principles and practice of economics. Facebook doesn"t charge money but the time spent on it could be used in a more effective way. Economic view: find best alternative use of the time on facebook, the cost of it. Economists study choices people make, especially the costs and benefits of those choices. Economics is the study of people"s choices. The first principle of economics is that people try to optimize: try to choose the best available option. The second principle of economics is that economic systems tend to be in equilibrium, a situation in which nobody would benefit by changing his or her own behavior. The third principle of economics is empiricism - analysis that uses data. Economists use data to test theories and to determine what is causing things to happen in the world. Choice - not money - is the unifying feature of all the things that economists study. All human behavior are outcome of choices.

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