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Scarcity:
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how economists study the fundamental issue of scarcity(not an unlimited supply of resources)
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opportunity cost :
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cost of not selecting the "next best" alternative
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Positive statements:
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attempts to describe the world as is
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Normative statements:
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attempts to prescribe how the world should be
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Marginal benefit:
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additional benefit resulting from a one-unit increase in the level of consumption (or an activity)
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Marginal cost:
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additional cost associated with one-unit increase in the level of consumption (or an activity)
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Self Interest —
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the idea that people choose to do the things that interests them
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Optimization
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the idea that people make choices in order to maximize the overall benefit , or utility of an action subject to its cost. Marginal benefit > marginal cost
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MC =
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TC (change) / Q (change)
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MB =
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TB (change) / Q (change)
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Price driving quantity
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demand curve
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Quantity driving price
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marginal benefit
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Resources
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anything that is used to produce a good or service, whether nature or manufactured
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Land
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natural resources used in production
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Labor
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physical and mental activity devoted to making goods and services
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Capital
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tools machinery infrastructure and knowledge used to produce goods and services (human and physical (BLANK))
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Comparative advantage
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The ability to produce a good or serve at LOWER relative opportunity cost than another producer
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Terms of trade
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the price of one good , service or resource in terms of another