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  2. Leitner system - Wikipedia

    en.wikipedia.org/wiki/Leitner_system

    The Leitner system [1] [2] [3] is a widely used method of efficiently using flashcards that was proposed by the German science journalist Sebastian Leitner in 1972. [ 4 ] [ 5 ] It is a simple implementation of the principle of spaced repetition , where cards are reviewed at increasing intervals.

  3. Law of supply - Wikipedia

    en.wikipedia.org/wiki/Law_of_supply

    A supply is a good or service that producers are willing to provide. The law of supply determines the quantity of supply at a given price. [5]The law of supply and demand states that, for a given product, if the quantity demanded exceeds the quantity supplied, then the price increases, which decreases the demand (law of demand) and increases the supply (law of supply)—and vice versa—until ...

  4. Supply (economics) - Wikipedia

    en.wikipedia.org/wiki/Supply_(economics)

    A supply schedule is a table which shows how much one or more firms will be willing to supply at particular prices under the existing circumstances. [1] Some of the more important factors affecting supply are the good's own price, the prices of related goods, production costs, technology, the production function, and expectations of sellers.

  5. Supply and demand - Wikipedia

    en.wikipedia.org/wiki/Supply_and_demand

    Supply chain as connected supply and demand curves. In microeconomics, supply and demand is an economic model of price determination in a market.It postulates that, holding all else equal, the unit price for a particular good or other traded item in a perfectly competitive market, will vary until it settles at the market-clearing price, where the quantity demanded equals the quantity supplied ...

  6. Classes of supply - Wikipedia

    en.wikipedia.org/wiki/Classes_of_supply

    The United States Army divides supplies into ten numerically identifiable classes of supply. The North Atlantic Treaty Organization (NATO) uses only the first five, for which NATO allies have agreed to share a common nomenclature with each other based on a NATO Standardization Agreement (STANAG). A common naming convention is reflective of the ...

  7. Demand curve - Wikipedia

    en.wikipedia.org/wiki/Demand_curve

    The shift from D1 to D2 means an increase in demand with consequences for the other variables. A demand curve is a graph depicting the inverse demand function, [1] a relationship between the price of a certain commodity (the y-axis) and the quantity of that commodity that is demanded at that price (the x-axis).

  8. Quadrature booster - Wikipedia

    en.wikipedia.org/wiki/Quadrature_booster

    400 MVA 220/155 kV phase-shifting transformer.. A phase angle regulating transformer, phase angle regulator (PAR, American usage), phase-shifting transformer, phase shifter (West coast American usage), or quadrature booster (quad booster, British usage), is a specialised form of transformer used to control the flow of real power on three-phase electric transmission networks.

  9. AD–AS model - Wikipedia

    en.wikipedia.org/wiki/AD–AS_model

    [5]: 411 Changes in the level of potential Y also shifts the AD curve, so that this type of shocks has an effect on both the supply and the demand side of the model. [5]: 412 Rightward aggregate demand shifts can be caused by any shock to one of the autonomous components of aggregate demand, e.g.: An exogenous increase in consumer spending