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  2. Perfect competition - Wikipedia

    en.wikipedia.org/wiki/Perfect_competition

    Perfect competition provides both allocative efficiency and productive efficiency: Such markets are allocatively efficient, as output will always occur where marginal cost is equal to average revenue i.e. price (MC = AR). In perfect competition, any profit-maximizing producer faces a market price equal to its marginal

  3. Market structure - Wikipedia

    en.wikipedia.org/wiki/Market_structure

    Perfect competition refers to a type of market where there are many buyers and sellers that feature free barriers to entry, dealing with homogeneous products with no differentiation, where the price is fixed by the market. Individual firms are price takers [3] as the price is set by the industry as a whole. Example: Agricultural products which ...

  4. Profit maximization - Wikipedia

    en.wikipedia.org/wiki/Profit_maximization

    Profit maximization using the total revenue and total cost curves of a perfect competitor. To obtain the profit maximizing output quantity, we start by recognizing that profit is equal to total revenue minus total cost ().

  5. Market power - Wikipedia

    en.wikipedia.org/wiki/Market_power

    In other words, market power occurs if a firm does not face a perfectly elastic demand curve and can set its price (P) above marginal cost (MC) without losing revenue. [2] This indicates that the magnitude of market power is associated with the gap between P and MC at a firm's profit maximising level of output.

  6. Fundamental theorems of welfare economics - Wikipedia

    en.wikipedia.org/wiki/Fundamental_theorems_of...

    Barone, an associate of Pareto, proved an optimality property of perfect competition, [21] namely that – assuming exogenous prices – it maximises the monetary value of the return from productive activity, this being the sum of the values of leisure, savings, and goods for consumption, all taken in the desired proportions. [22]

  7. Marginal revenue productivity theory of wages - Wikipedia

    en.wikipedia.org/wiki/Marginal_revenue...

    Firms operating as monopolies or in imperfect competition face downward-sloping demand curves. To sell extra units of output, they would have to lower their output's price. Under such market conditions, marginal revenue product will not equal . This is because the firm is not able to sell output at a fixed price per unit.

  8. Lerner index - Wikipedia

    en.wikipedia.org/wiki/Lerner_Index

    It means that there was a slight decrease in competition. Then, during 2006–2009, there was a decrease in the Lernex index. In 2010 the Lerner index significantly increased. The mean of the Lerner index computed for the full sample is 53.58 %, which do not confirm either monopoly or perfect competition in the credit market of Czech Republic.

  9. Monopolistic competition - Wikipedia

    en.wikipedia.org/wiki/Monopolistic_competition

    Monopolistic competition is a type of imperfect competition such that there are many producers competing against each other but selling products that are differentiated from one another (e.g., branding, quality) and hence not perfect substitutes. In monopolistic competition, a company takes the prices charged by its rivals as given and ignores ...