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Differentiated Bertrand Competition
As a solution to the Bertrand paradox in economics, it has been suggested that each firm produces a somewhat differentiated product, and consequently faces a demand curve that is downward-sloping for all levels of the firm's price. An increase in a competitor's price is represented as an increase (for example, an upward shift) of the firm's demand curve. As a result, when a competitor raises price, generally a firm can also raise its own price and increase its profits. Calculating the differentiated Bertrand model *q1 = firm 1's demand, *q1≥0 *q2 = firm 2's demand, *q1≥0 *A1 = Constant in equation for firm 1's demand *A2 = Constant in equation for firm 2's demand *a1 = slope coefficient for firm 1's price *a2 = slope coefficient for firm 2's price *p1 = firm 1's price level pr unit *p2 = firm 2's price level pr unit *b1 = slope coefficient for how much firm 2's price affects firm 1's demand *b2 = slope coefficient for how much firm 1's price affects firm 2's demand *q1=A1-a1* ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bertrand Paradox (economics)
In economics and commerce, the Bertrand paradox — named after its creator, Joseph Bertrand — describes a situation in which two players (firms) reach a state of Nash equilibrium where both firms charge a price equal to marginal cost ("MC"). The paradox is that in models such as Cournot competition, an increase in the number of firms is associated with a convergence of prices to marginal costs. In these alternative models of oligopoly, a small number of firms earn positive profits by charging prices above cost. Suppose two firms, A and B, sell a homogeneous commodity, each with the same cost of production and distribution, so that customers choose the product solely on the basis of price. It follows that demand is infinitely price-elastic. Neither A nor B will set a higher price than the other because doing so would yield the entire market to their rival. If they set the same price, the companies will share both the market and profits. On the other hand, if either firm were to l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merger Simulation
Merger simulation is a commonly used technique when analyzing potential welfare costs and benefits of mergers between firms. Merger simulation models differ with respect to assumed form of competition that best describes the market (e.g. differentiated Bertrand competition, Cournot competition, auction models, etc.) as well as the structure of the chosen demand system (e.g. linear or log-linear demand, logit, almost ideal demand system (AIDS), etc.)Oliver Budzinski and Isabel Ruhmer, ''Merger Simulation in Competition Policy: A Survey'', Journal of Competition Law & Economics (2010), 6(2): 277-319. Simulation Methods Cournot Oligopoly Farrell and Shapiro (1990) highlighted issues of the Department of Justice’s Merger Guidelines (1984), with its use of Herfindahl-Hirschman indices. The main issues they raised were the base assumptions that: # Outputs remain unchanged in the merger process (both companies retained their initial outputs); # There is a reliable and inverse relati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model (abstract)
A conceptual model is a representation of a system. It consists of concepts used to help people know, understand, or simulate a subject the model represents. In contrast, physical models are physical object such as a toy model that may be assembled and made to work like the object it represents. The term may refer to models that are formed after a conceptualization or generalization process. Conceptual models are often abstractions of things in the real world, whether physical or social. Semantic studies are relevant to various stages of concept formation. Semantics is basically about concepts, the meaning that thinking beings give to various elements of their experience. Overview Models of concepts and models that are conceptual The term ''conceptual model'' is normal. It could mean "a model of concept" or it could mean "a model that is conceptual." A distinction can be made between ''what models are'' and ''what models are made of''. With the exception of iconic m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bertrand Competition
Bertrand competition is a model of competition used in economics, named after Joseph Louis François Bertrand (1822–1900). It describes interactions among firms (sellers) that set prices and their customers (buyers) that choose quantities at the prices set. The model was formulated in 1883 by Bertrand in a review of Antoine Augustin Cournot's book ''Recherches sur les Principes Mathématiques de la Théorie des Richesses'' (1838) in which Cournot had put forward the Cournot model. Cournot's model argued that each firm should maximise its profit by selecting a quantity level and then adjusting price level to sell that quantity. The outcome of the model equilibrium involved firms pricing above marginal cost; hence, the competitive price. In his review, Bertrand argued that each firm should instead maximise its profits by selecting a price level that undercuts its competitors' prices, when their prices exceed marginal cost. The model was not formalized by Bertrand; however, the ide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligopoly Theory
An oligopoly (from Greek ὀλίγος, ''oligos'' "few" and πωλεῖν, ''polein'' "to sell") is a market structure in which a market or industry is dominated by a small number of large sellers or producers. Oligopolies often result from the desire to maximize profits, which can lead to collusion between companies. This reduces competition, increases prices for consumers, and lowers wages for employees. Many industries have been cited as oligopolistic, including civil aviation, electricity providers, the telecommunications sector, Rail freight markets, food processing, funeral services, sugar refining, beer making, pulp and paper making, and automobile manufacturing. Most countries have laws outlawing anti-competitive behavior. EU competition law prohibits anti-competitive practices such as price-fixing and manipulating market supply and trade among competitors. In the US, the United States Department of Justice Antitrust Division and the Federal Trade Commiss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huw Dixon
Huw David Dixon (/hju: devəd dɪksən/), born 1958, is a British economist. He has been a professor at Cardiff Business School since 2006, having previously been Head of Economics at the University of York (2003–2006) after being a professor of economics there (1992–2003), and the University of Swansea (1991–1992), a Reader at Essex University (1987–1991) and a lecturer at Birkbeck College (University of London) 1983–1987. Education He graduated from his first degree in Philosophy and Economics from Balliol College, University of Oxford in 1980, and he went on to do his PhD at Nuffield College, University of Oxford under the supervision of Nobel Laureate Sir James Mirrlees graduating in 1984. Career Dixon was a fellow of the CEPR from 1991–2001, a member of the Royal Economic Society council (1996–2001), and a fellow of the Ces-ifo institute since 2000. He has been on the Editorial Board of the Review of Economic Studies (1986–1993), the Journal of Indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Competition (economics)
In economics, competition is a scenario where different economic firmsThis article follows the general economic convention of referring to all actors as firms; examples in include individuals and brands or divisions within the same (legal) firm. are in contention to obtain goods that are limited by varying the elements of the marketing mix: price, product, promotion and place. In classical economic thought, competition causes commercial firms to develop new products, services and technologies, which would give consumers greater selection and better products. The greater the selection of a good is in the market, prices are typically lower for the products, compared to what the price would be if there was no competition (monopoly) or little competition (oligopoly). The level of competition that exists within the market is dependent on a variety of factors both on the firm/ seller side; the number of firms, barriers to entry, information, and availability/ accessibility of resourc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
