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Demand curves can be used either for the price-quantity relationship for an individual consumer (an individual demand curve), or for all consumers in a particular market (a market demand curve). It is generally assumed that demand curves slope down, as shown in the adjacent image.
The demand curve, shown in blue, is sloping downwards from left to right because price and quantity demanded are inversely related. This relationship is contingent on certain conditions remaining constant. The supply curve, shown in orange, intersects with the demand curve at price (Pe) = 80 and quantity (Qe)= 120.
Markets that face a downward sloping demand curve are said to have market power. This terms means that the markets have a certain power to decide their own price. [3] This does not mean that the firm can decide the quantity they wish to sell. The firm can decide the price and the quantity is determined by the demand curve.
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 ...
A kink in an otherwise linear demand curve. Note how marginal costs can fluctuate between MC1 and MC3 without the equilibrium quantity or price changing. The Kinked-Demand curve theory is an economic theory regarding oligopoly and monopolistic competition. Kinked demand was an initial attempt to explain sticky prices.
[3] [4] Instead, the downward sloping aggregate demand curve is derived with the help of three macroeconomic assumptions about the functioning of markets: Pigou's wealth effect, Keynes' interest rate effect and the Mundell–Fleming exchange-rate effect.
The utility hypothesis tells us nothing about market demand unless it is augmented by additional requirements. [19] In other words, it cannot be assumed that the demand curve for a single market, let alone an entire economy, must be smoothly downward-sloping simply because the demand curves of individual consumers are downward-sloping.
For a PC company, this equilibrium condition occurs where the perfectly elastic demand curve equals minimum average cost. An MC company's demand curve is not flat but is downward-sloping. Thus, the demand curve will be tangential to the long-run average cost curve at a point to the left of its minimum. The result is excess capacity. [22]