Imperfections

The quotas can be: ) the perfect ones (perfect cartel): all the companies have the same participation. The administration of the fixed cartel a common price and divides the market equally, acting as a monopolista block. &#039 is the call; ' solution of monoplio' ' ; b) imperfect (imperfect cartel): leader companies exist (that they have so great greater or lesser costs) and that they fix the prices being with the biggest quota. The too much companies agree to following prices that the leader fixes a price that is very low, that could eliminate the too much companies. It is the call Model of Leadership of Prices, where the company (or companies) leader fixes a price that guarantees a monopoly profit to it and excessively they consider this price given (as in perfect competition. Example of Oligopoly & ndash; performance of the market of civil aviation, with the great companies GOAL, TAP, TAM, OCEAN AIR, another example is the automobile industry, where the assembly plants are the most faithful example, always disputing the market and the customer, they are Ford, Fiat, Volkswagen, the assembly plants native of Koreas and Chinese are in high in the national market, fortifying still more the competition. Monopsnio It is a form of market with only one purchaser innumerable selling, that is, inverse to the case of the monopoly.

She influences the prices of definitive well, varying only the bought amount the company purchaser imposes a price of purchase of the product or service. Examples of market characterized for monopsnio is the presence of a great siderurgical plant in a city, being it only employer of man power. In microeconomy, monopsonistas and oligopsonistas are assumed as maximizadoras companies of profits and take the imperfections of market, which had the restriction of acquired amount, that is a worse situation of what the excellent one of Pareto that would exist in perfect competition.