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  2. Market power - Wikipedia

    en.wikipedia.org/wiki/Market_power

    All firms have relatively small market share and cannot influence price; As all firms in the market are price takers, they essentially hold zero market power and must accept the price given by the market. A perfectly competitive market is logically impossible to achieve in a real world scenario as it embodies contradiction in itself and ...

  3. Perfect competition - Wikipedia

    en.wikipedia.org/wiki/Perfect_competition

    Equilibrium in perfect competition is the point where market demands will be equal to market supply. A firm's price will be determined at this point. In the short run, equilibrium will be affected by demand. In the long run, both demand and supply of a product will affect the equilibrium in perfect competition.

  4. Oligopoly - Wikipedia

    en.wikipedia.org/wiki/Oligopoly

    In a perfectly competitive market, there is zero interdependence because no firm is large enough to affect market prices. In a monopoly, there are no competitors to be concerned about. In a monopolistically-competitive market, each firm's effects on market conditions are so negligible that they can be safely ignored by competitors.

  5. Monopoly profit - Wikipedia

    en.wikipedia.org/wiki/Monopoly_profit

    [2] [3] Since a competitive market has many competing firms, a customer can buy widgets from any of the competing firms. [1] [4] [2] [5] Because of this tight competition, competing firms in a market each have their own horizontal demand curve that is fixed at a single price established by market equilibrium for the entire industry as a whole.

  6. Demand - Wikipedia

    en.wikipedia.org/wiki/Demand

    Economic actors are price-takers. Perfectly competitive firms have zero market power; that is, they have no ability to affect the terms and conditions of exchange. A perfectly competitive firm's decisions are limited to whether to produce and if so, how much. In less than perfectly competitive markets the demand curve is negatively sloped and ...

  7. Barriers to entry - Wikipedia

    en.wikipedia.org/wiki/Barriers_to_entry

    The distinguishing characteristic of a duopoly is a market featuring solely two firms. Competition in a duopoly can vary due to what is being set in the market: price or quantity (see Cournot competition and Bertrand competition). It is generally agreed that a duopoly will feature higher barriers to entry than an oligopoly, as firms within a ...

  8. Lerner index - Wikipedia

    en.wikipedia.org/wiki/Lerner_Index

    A perfectly competitive firm charges P = MC, L = 0; such a firm has no market power. An oligopolist or monopolist charges P > MC, so its index is L > 0, but the extent of its markup depends on the elasticity (the price-sensitivity) of demand and strategic interaction with competing firms.

  9. Contestable market - Wikipedia

    en.wikipedia.org/wiki/Contestable_market

    For example, if a new firm enters the steel industry, the entrant needs to buy new machinery. If, for any reason, the new firm cannot cope with the competition of the incumbent firm, it will plan to move out of the market. However, if the new firm cannot use or transfer the new machines that it bought for the production of steel to other uses ...