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  2. Inferior good - Wikipedia

    en.wikipedia.org/wiki/Inferior_good

    Good X is an inferior good since the amount bought decreases from X1 to X2 as income increases. In economics, inferior goods are those goods the demand for which falls with increase in income of the consumer. So, there is an inverse relationship between income of the consumer and the demand for inferior goods. [1]

  3. Giffen good - Wikipedia

    en.wikipedia.org/wiki/Giffen_good

    the good in question must be an inferior good, there must be a lack of close substitute goods, and; the goods must constitute a substantial percentage of the buyer's income, but not such a substantial percentage of the buyer's income that none of the associated normal goods are consumed.

  4. Income–consumption curve - Wikipedia

    en.wikipedia.org/wiki/Income–consumption_curve

    Figure 1: An increase in the income, with the prices of all goods fixed, causes consumers to alter their choice of market basket. The extreme left and right indifference curves belong to different individuals with different preferences, while the three central indifference curves belong to one individual for whom the income-consumption curve is shown.

  5. Goods - Wikipedia

    en.wikipedia.org/wiki/Goods

    Goods are capable of being physically delivered to a consumer. Goods that are economic intangibles can only be stored, delivered, and consumed by means of media. Goods, both tangibles and intangibles, may involve the transfer of product ownership to the consumer. Services do not normally involve transfer of ownership of the service itself, but ...

  6. Slutsky equation - Wikipedia

    en.wikipedia.org/wiki/Slutsky_equation

    A Giffen good is a product that is in greater demand when the price increases, which are also special cases of inferior goods. [5] In the extreme case of income inferiority, the size of income effect overpowers the size of the substitution effect, leading to a positive overall change in demand responding to an increase in the price.

  7. Hicksian demand function - Wikipedia

    en.wikipedia.org/wiki/Hicksian_demand_function

    Essentially, a Hicksian demand function shows how an economic agent would react to the change in the price of a good, if the agent's income was compensated to guarantee the agent the same utility previous to the change in the price of the good—the agent will remain on the same indifference curve before and after the change in the price of the ...

  8. SEC classification of goods and services - Wikipedia

    en.wikipedia.org/wiki/SEC_classification_of...

    An experience good is a product or service where product characteristics, such as quality or price, are difficult to observe in advance, but these characteristics can be ascertained upon consumption. The concept is originally due to Philip Nelson , who contrasted an experience good with a search good .

  9. Excludability - Wikipedia

    en.wikipedia.org/wiki/Excludability

    In economics, a good, service or resource is broadly assigned two fundamental characteristics; a degree of excludability and a degree of rivalry. Excludability was originally proposed in 1954 by American economist Paul Samuelson where he formalised the concept now known as public goods, i.e. goods that are both non-rivalrous and non-excludable. [1]