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  2. Inferior good - Wikipedia

    en.wikipedia.org/wiki/Inferior_good

    In economics, inferior goods are goods whose demand decreases when consumer income rises (or demand increases when consumer income decreases). [2] [3] This behaviour is unlike the supply and demand behaviour of normal goods, for which the opposite is observed; [4] normal goods are those goods for which the demand rises as consumer income rises ...

  3. Diminishing returns - Wikipedia

    en.wikipedia.org/wiki/Diminishing_returns

    [2] [3] The law of diminishing returns does not cause a decrease in overall production capabilities, rather it defines a point on a production curve whereby producing an additional unit of output will result in a loss and is known as negative returns. Under diminishing returns, output remains positive, but productivity and efficiency decrease.

  4. Income–consumption curve - Wikipedia

    en.wikipedia.org/wiki/Income–consumption_curve

    In economics and particularly in consumer choice theory, the income-consumption curve (also called income expansion path and income offer curve) is a curve in a graph in which the quantities of two goods are plotted on the two axes; the curve is the locus of points showing the consumption bundles chosen at each of various levels of income.

  5. Deadweight loss - Wikipedia

    en.wikipedia.org/wiki/Deadweight_loss

    In economics, deadweight loss is the loss of societal economic welfare due to production/consumption of a good at a quantity where marginal benefit (to society) does not equal marginal cost (to society) – in other words, there are either goods being produced despite the cost of doing so being larger than the benefit, or additional goods are not being produced despite the fact that the ...

  6. Inflation - Wikipedia

    en.wikipedia.org/wiki/Inflation

    Inflation rates among members of the International Monetary Fund in April 2024 UK and US monthly inflation rates from January 1989 [1] [2] In economics, inflation is a general increase in the prices of goods and services in an economy. This is usually measured using a consumer price index (CPI).

  7. Natural rate of unemployment - Wikipedia

    en.wikipedia.org/wiki/Natural_rate_of_unemployment

    The natural rate of unemployment is the name that was given to a key concept in the study of economic activity. Milton Friedman and Edmund Phelps, tackling this 'human' problem in the 1960s, both received the Nobel Memorial Prize in Economic Sciences for their work, and the development of the concept is cited as a main motivation behind the prize.

  8. Marginal propensity to save - Wikipedia

    en.wikipedia.org/wiki/Marginal_propensity_to_save

    Likewise, it is the fractional decrease in saving that results from a decrease in income. The MPS plays a central role in Keynesian economics as it quantifies the saving-income relation, which is the flip side of the consumption-income relation, and according to Keynes it reflects the fundamental psychological law .

  9. Price elasticity of supply - Wikipedia

    en.wikipedia.org/wiki/Price_elasticity_of_supply

    The price elasticity of supply (PES or E s) is commonly known as “a measure used in economics to show the responsiveness, or elasticity, of the quantity supplied of a good or service to a change in its price.” Price elasticity of supply, in application, is the percentage change of the quantity supplied resulting from a 1% change in price.