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In game theory, an extensive-form game is a specification of a game allowing (as the name suggests) for the explicit representation of a number of key aspects, like the sequencing of players' possible moves, their choices at every decision point, the (possibly imperfect) information each player has about the other player's moves when they make a decision, and their payoffs for all possible ...
The imperfect theorists' perspective argues that policy based on assumptions of perfect competition is not effective as no market exists in purely perfectly competitive conditions. The argument for assuming perfect competition in economic decision making prevails on the widespread use of its logic, and the present lack of substantial and ...
Economists who believe that perfect competition is a useful approximation to real markets classify markets as ranging from close-to-perfect to very imperfect. Examples of close-to-perfect markets typically include share and foreign exchange markets while the real estate market is typically an example of a very imperfect market.
Imperfect competition was a theory created to explain the more realistic kind of market interaction that lies in between perfect competition and a monopoly. Edward Chamberlin wrote "Monopolistic Competition" in 1933 as "a challenge to the traditional viewpoint that competition and monopolies are alternatives and that individual prices are to be ...
The total surplus of perfect competition market is the highest. And the total surplus of imperfect competition market is lower. In the monopoly market, if the monopoly firm can adopt first-level price discrimination, the consumer surplus is zero and the monopoly firm obtains all the benefits in the market. [15]
It also explores the effect of changes in demand on individual sellers' costs and analyzes the supply curve of a commodity under perfect competition. Book IV: The Comparison of Monopoly and Competitive Output - This book compares the output of a perfectly competitive industry with that of a monopoly when the number of independent producers is ...
In an idealized "perfect" market, economists expect the market to "achieve every desired exchange for homogeneous goods when there is only one price". [5] Based on that, to have a perfect capital market, every agent may exchange funds at the existing single interest rate for each type of fund.
However, competitive markets—as understood in formal economic theory—rely on much larger numbers of both buyers and sellers. A market with a single seller and multiple buyers is a monopoly. A market with a single buyer and multiple sellers is a monopsony. These are "the polar opposites of perfect competition". [13]