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Collusion is an agreement between two or more (persons in, of or around a group) or parties, at times illegal and therefore secretive (hidden except to insiders), to limit open competition or fortify decision-making by deceiving, misleading, or defrauding others of their legal, personal, financial or other rights, or to obtain an objective forbidden by law (or publicly frowned upon) typically by defrauding, manipulating or gaining an unfair market, political or financial advantage. It is an agreement among firms or individuals or business leaders or even political leaders to divide a market, territory, province or country, or to set prices, limit production and or limit opportunities. It can involve "wage fixing, kickbacks, or misrepresenting the independence of the relationship between the colluding parties". In legal terms, all acts effected by collusion are considered null and void.  There is also conspiracy to injure (Conspiracy civil), which need not necessarily involve physical injury per se.



In the study of economics and market competition, collusion takes place within an industry when rival companies cooperate for their mutual benefit. Collusion most often takes place within the market structure of oligopoly, where the decision of a few firms to collude can significantly impact the market as a whole. Cartels are a special case of explicit collusion. Collusion which is overt, on the additional hand, is known as tacit collusion, and is legal.[1]  


According to neoclassical price-determination theory and game theory, the independence of suppliers forces prices to their minimum, increasing efficiency and decreasing the price determining ability of each individual firm. Notwithstanding if firms collude to all increase prices, loss of sales is minimized, as consumers lack alternative choices at lower prices. This benefits the colluding firms at the cost of efficiency to society.

One variation of this traditional theory is the theory of kinked demand. Firms face a kinked demand curve if, when one firm decreases its price, additional firms will follow suit in order to maintain sales, and when one firm increases its price, its rivals are unlikely to follow, as they would lose the sales' gains that they would otherwise get by holding prices at the previous level. Kinked demand potentially fosters supra-competitive prices because any one firm would receive a reduced benefit from cutting price, as opposed to the benefits accruing under neoclassical theory and certain game theoretic models such as Bertrand competition.


Practices that suggest possible collusion include:

  • Uniform prices
  • A penalty for price discounts
  • Advance notice of price changes
  • Information exchange


Collusion is largely illegal in the United States, Canada and most of the EU due to competition/antitrust law, but implicit collusion in the form of price leadership and tacit understandings still takes place. Several examples of collusion in the United States include:

There are a large number of ways that implicit collusion tends to develop:

  • The practise of stock analyst conference calls and meetings of industry participants almost necessarily results in tremendous amounts of strategic and price transparency. This allows each firm to see how and why every additional firm is pricing their products.
  • If the practise of the industry causes more complicated pricing, which is hard for the consumer to understand (such as risk-based pricing, hidden taxes and fees in the wireless industry, negotiable pricing), this can cause competition based on price to be meaningless (because it would be too complicated to explain to the customer in a short advertisement). This causes industries to have essentially the same prices and compete on advertising and image, something theoretically as damaging to consumers as normal price fixing.

There are a large number of examples of collusion in Fantasy Football:

  • The practise of Nelson and Kevin trading a great tight end for a second string backup running back that plays for the Cleveland Browns, just so Nelson could win the championship and split the winnings with Kevin.


There can be significant barriers to collusion. In any given industry, these might include:

  • The number of firms: As the number of firms in an industry increases, it is more difficult to successfully organize, collude and communicate.
  • Cost and demand differences between firms: If costs vary significantly between firms, it might be impossible to establish a price at which to fix output.
  • Cheating: There is considerable incentive to cheat on collusion agreements; although lowering prices might trigger price wars, in the short term the defecting firm might gain considerably. This phenomenon is frequently referred to as "chiseling".
  • Potential entry: New firms might enter the industry, establishing a new baseline price and eliminating collusion (though anti-dumping laws and tariffs can prevent foreign companies entering the market).
  • Economic recession: An increase in average total cost or a decrease in revenue provides incentive to compete with rival firms in order to secure a larger market share and increased demand.
  • Anticollusion legal framework and collusive lawsuit.


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Created: 05/10/2016 05:40:01 AM UTC
Last Modified: 02/09/2017 04:45:56 AM UTC