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WELFARE ECONOMICS: A branch of economics that studies efficiency and the overall well-being of society based on alternative allocations of scarce resources. Welfare economics extends the microeconomic analysis of indifference curves to society as a whole. It is concerned with broad efficiency questions and criteria (Pareto efficiency and Kaldor-Hicks efficiency) as well as more specific efficiency issues (market failures, externalities, public goods).

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Lesson 2: Economic Science | Unit 1: The Method Page: 2 of 20

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The scientific method has four important parts:
  • Theory: A theory is a scientifically accepted, interrelated body of general principles used to explain and understand some aspect of the world.
  • Principles: A principle is a generally accepted, verified, fundamental laws of nature. Principles establish cause and effect relations about the real world.
  • Hypotheses: An hypothesis is a reasonable proposition about the workings of the world that is inspired or implied by a theory and which may or may not be true.
  • Data: These are observations about what is actually happening in the real world. Data are used to validate or verify hypotheses and are essential to the scientific method.

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TOTAL PHYSICAL PRODUCT

The total quantity of output produced by a firm for a given quantity of inputs. Total physical product is actually nothing more than total product. The insertion of the word "physical" merely keeps the phrase consistent with average physical product and marginal physical product, two terms useful in marginal-productivity theory and the analysis of factor demand.

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BEIGE MUNDORTLE
[What's This?]

Today, you are likely to spend a great deal of time watching the shopping channel looking to buy either a birthday greeting card for your father or a T-shirt commemorating the first day of spring. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Cyrus McCormick not only invented the reaper for harvesting grain, he also invented the installment payment for selling his reaper.
"Lead the life that will make you kindly and friendly to everyone about you, and you will be surprised what a happy life you will lead."

-- Charles M. Schwab

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