An oligopsony is a market with many sellers but only a few buyers, which gives those buyers power over price and terms. It is the buyer-side mirror of an oligopoly, and a close relative of monopsony (a single buyer), a term associated with Joan Robinson‘s The Economics of Imperfect Competition (1933). Farm products sold to a few processors and labour markets dominated by a few employers are classic examples.
A few buyers account for most of what the market buys, so each one's choices move prices.
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Few outside options
Sellers face high costs of finding other buyers, often because their product, skills or location are specialised.
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Price below competitive level
Buyers can pay less than they would in a competitive market, and buy less too.
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Countervailing moves
Sellers respond by organising, diversifying customers, or selling to the buyers' rivals.
Where you see it today
AI cloud capacity
Specialised GPU cloud providers can depend on very few customers. CoreWeave reported that its top customer, Microsoft, accounted for about 67% of its revenue for the year ended December 2025, and it flags the loss of a top customer as a key risk.
AI chips
Nvidia says it has had periods with a significant share of revenue from a limited number of customers. In fiscal 2026, two direct customers accounted for 22% and 14% of revenue, though direct customers include manufacturers and distributors as well as end users.
Labour markets
A labour market is concentrated when a few employers dominate hiring. A study of US online job postings found that moving from less to more concentrated markets was associated with lower posted wages (Azar et al., 2022).
Selling content to AI
Publishers whose pages feed AI systems face a small set of large AI buyers. Tools such as Cloudflare’s pay per crawl, launched in private beta in July 2025, are an attempt to give sellers more say over price and access.
Oligopsony and related market structures
Perfect competition
SellersMany
BuyersMany
Oligopoly
SellersFew
BuyersMany
Oligopsony
SellersMany
BuyersFew
Monopsony
SellersMany
BuyersOne
Bilateral monopoly
SellersOne
BuyersOne
How to use it
Measure your customer concentration: what share of revenue comes from your top one, three and five buyers.
Treat a dominant customer as a strategic risk, not just a sales win, and plan for its loss.
Build products or services that more than a few buyers can use, so you have outside options.
When you are the large buyer, remember that squeezing suppliers too hard can cut future supply and quality.
Watch antitrust and labour rules, which increasingly look at buyer power as well as seller power.
The Business Engineer lens
Parts of the AI supply chain are shaped by a small number of very large buyers of chips, cloud capacity and content. The Business Engineer view reads customer concentration as a map of who really sets terms in the inference economy, and where suppliers are exposed.
A market with many sellers but only a few buyers, who can use their position to push down prices or set terms.
What is the difference between oligopsony and oligopoly?
An oligopoly has a few sellers with power over buyers; an oligopsony has a few buyers with power over sellers.
What are examples of oligopsony?
Farm products sold to a few large processors, local labour markets dominated by a few employers, and parts of the AI supply chain where a few large firms buy most capacity.
Is oligopsony illegal?
Not in itself. Competition authorities can act when mergers or conduct reduce competition among buyers, including employers.
The complete explainer, cleaned up and reformatted for mobile.
An oligopsony is a market form characterized by the presence of only a small number of buyers. These buyers have market power and can lower the price of a good or service because of a lack of competition. In other words, the seller loses its bargaining power because it is unable to find a buyer outside of the oligopsony that is willing to pay a better price.
Concept Overview
Explanation– Oligopsony is an economic term used to describe a market structure in which a small number of large buyers or purchasers exert significant influence over the purchasing of goods or services. This is the counterpart of oligopoly, where a small number of sellers dominate the market. In an oligopsonistic market, the buyers have the power to affect prices, quantities, and terms of trade, which can impact suppliers and the overall market dynamics.
Key Characteristics
Explanation– Few Large Buyers: Oligopsony markets are characterized by the presence of a limited number of major buyers or purchasers. These buyers are often dominant players in the industry. – Market Power: Oligopsonistic buyers have substantial market power and can influence prices and terms of trade. – Impact on Suppliers: Suppliers or sellers in an oligopsonistic market may have limited alternatives, making them vulnerable to the decisions and demands of the buyers. – Price Setting: Buyers may have the ability to set prices or negotiate terms that favor them, potentially leading to lower prices paid to suppliers. – Entry Barriers: High entry barriers can discourage new buyers from entering the market, which can further consolidate the power of existing buyers.
Examples
Explanation– Oligopsony can be found in various industries, such as agriculture, where a small number of large food processors or distributors dominate the purchase of crops from farmers. – It is also observed in the technology sector, where a few major companies may control the acquisition of components or technologies from suppliers. – In healthcare, a limited number of insurance companies or government agencies may serve as major buyers of medical services.
Effects on Suppliers
Explanation– Suppliers in an oligopsonistic market often face challenges: – They may have limited ability to negotiate prices and terms due to the buyer’s market power. – Suppliers may be forced to accept lower prices or unfavorable conditions. – Smaller suppliers may struggle to compete, potentially leading to consolidation within the supply chain. – Suppliers may seek alternative markets or buyers to reduce their dependence on the oligopsonistic buyer(s).
Regulation and Competition Policy
Explanation– Governments and regulatory bodies often monitor and regulate oligopsonistic markets to ensure fair competition and prevent abuses of market power. – Antitrust laws and competition policies aim to promote competition, prevent collusion among buyers, and protect the interests of suppliers and consumers. – Regulatory interventions can include measures to enhance transparency, promote fair pricing, and prevent anti-competitive behavior.
Mitigating Oligopsony Power
Explanation– Suppliers may employ various strategies to mitigate the power of oligopsonistic buyers: – Seek out alternative buyers or markets to diversify their customer base. – Collaborate with other suppliers to negotiate collectively or gain more bargaining power. – Advocate for regulatory interventions and government policies that promote fair competition. – Invest in cost efficiencies and differentiation to reduce vulnerability to price pressures.
Global Trade Implications
Explanation– Oligopsony can have implications for international trade when dominant buyers in one country impact global supply chains. – Suppliers in exporting countries may face challenges when dealing with powerful buyers in importing countries. – Trade negotiations and agreements can address issues related to market access, tariffs, and non-tariff barriers that affect suppliers in oligopsonistic markets.
Balancing Market Power
Explanation– Achieving a balanced distribution of market power between buyers and suppliers is essential for a healthy and competitive marketplace. – Effective competition policy and regulation can help create a level playing field and prevent the abuse of market power by dominant buyers. – A competitive and transparent market benefits both buyers and suppliers by fostering innovation, efficiency, and fair trade practices.
Understanding an oligopsony
An oligopsony is a market for a product or service dominated by a few large buyers. The concentration of demand means each buyer has power over the seller to keep prices low.
An oligopsony is the opposite of an oligopoly, where the market is dominated by a few sellers that inflate prices in the absence of competition from other supply sources.
In addition to the presence of relatively few buyers, there are a few more traits that define an oligopsony:
It develops in a market of imperfect competition since buyers are the entities exercising market power. Imperfect competition is also associated with significant barriers to entry and prohibitive start-up costs.
Each buyer is connected. Thus, the policies of one buyer will have repercussions for the other buyers.
The presence of homogeneous products, or any product that cannot be distinguished from competing products from different suppliers. Most commodities including vegetables, fruits, oil, grains, and metals are homogeneous goods.
Buyers also ensure market costs provide them with a certain amount of profit that does provide an incentive for competition to enter the market.
Oligopsony examples
Here are a few examples of an oligopsony in a real-world scenario:
Fast-food
Perhaps the most cited example of an oligopsony is the fast-food industry. Restaurant chains such as McDonald’s, Burger King, and Wendy’s purchase most of the beef produced by cattle farmers. Such is their power that these buyers also influence animal welfare conditions and labor standards. In the United States alone, McDonald’s sells more than 1 billion pounds of beef each year.
Retail grocery
The retail grocery industry is now dominated by giant supermarket chains such as Walmart, Costco, Albertsons, and Kroger. Their influence extends back to dairy and produce farmers at the start of the supply chain — as explored in how AI is restructuring the traditional value chain — , lowering farm-gate prices over time and making it more difficult for farmers to turn a profit.
Cocoa
A less obvious example of oligopsony is also present in the cocoa industry. Cocoa beans are grown all over the world, but there are only three primary buyers: Cargill, Archer Daniels Midland (ADM), and Barry Callebaut. Most cocoa is sourced from poor farmers in third-world nations with already low bargaining power.
Aircraft components
For companies that manufacture aircraft components, their choice of buyers is also limited. Boeing, Airbus, and Embraer dominate commercial aircraft assembly, while Boeing and Airbus together with Lockheed and GE dominate aerospace and defense aircraft assembly.
Cinema
There are also few buyers of the specialized screen and projector technology found in modern cinemas. In North America, the cinema industry is dominated by five chains: AMC Entertainment, Regal Cinemas, Cineplex Entertainment, Marcus Theatres Corp., and Cinemark. Collectively, these chains operate 22,390 cinema screens across the United States and Canada and enjoy market dominance.
Key takeaways
An oligopsony is a market for a product or service dominated by a few large buyers. The concentration of demand means each buyer has the power to put downward pressure on prices.
An oligopsony develops in markets characterized by imperfect competition, connected buyers, homogeneous products, and profit margins that do not attract new entrants.
The fast-food industry is one notable example of an oligopsony. However, the effect is also present in retail grocery, cocoa farming, aircraft component manufacturing, and cinema technology.
Key Highlights
Definition and Characteristics:
An oligopsony is a market structure characterized by a small number of dominant buyers who possess market power.
These buyers can exert pressure on sellers to lower the prices of goods or services due to the lack of competition.
An oligopsony is the opposite of an oligopoly, where a few sellers dominate the market and can raise prices due to limited competition.
Key Traits of Oligopsony:
Develops in markets with imperfect competition where buyers hold market power.
Involves significant barriers to entry and prohibitive startup costs, preventing new players from entering.
Buyers are interconnected, and decisions made by one buyer can impact others.
Involves homogeneous products, which are goods that are indistinguishable from those of other suppliers.
Buyers ensure market costs allow for profit, encouraging competition to enter the market.
Examples of Oligopsony:
Fast-Food Industry:
Fast-food chains like McDonald’s, Burger King, and Wendy’s dominate the beef market, influencing pricing, labor standards, and animal welfare conditions.
Retail Grocery:
Giant supermarket chains like Walmart, Costco, and Kroger exert influence from farm-gate to retail, impacting farm profitability.
Cocoa Industry:
Three primary buyers, Cargill, ADM, and Barry Callebaut, dominate the cocoa industry, affecting farmers in third-world nations.
Aircraft Components Manufacturing:
Aircraft component manufacturers have limited buyers like Boeing, Airbus, Lockheed, and GE, impacting market dynamics.
Cinema Technology:
The cinema industry, dominated by chains like AMC Entertainment and Regal Cinemas, affects the specialized technology market.
Impact and Power:
Oligopsonies have the power to influence pricing, standards, and conditions throughout supply chains.
Dominant buyers can lower prices for suppliers and impact profitability, especially for smaller producers.
The interconnectedness of buyers and limited options for sellers create a market structure where buyers hold significant influence.
Key Takeaways:
Oligopsony involves a few dominant buyers in a market who can drive down prices due to a lack of competition.
Characteristics include imperfect competition, connected buyers, homogeneous products, and constrained profit margins.
Examples range from the fast-food and retail grocery industries to cocoa farming, aircraft components, and cinema technology.
Monopsony
DescriptionMonopsony is a market structure characterized by a single buyer dominating the market for a particular product or service. In a monopsony, the monopsonist has significant market power to dictate terms to suppliers, including prices and quantities purchased. Monopsonies may arise due to barriers to entry, consolidation of buyers, or control over essential resources. By studying monopsonies, economists can analyze the implications for market efficiency, supplier welfare, and the need for regulation.
When to ApplyConsider Monopsony when analyzing industries dominated by a single buyer. Use it to understand the implications of buyer power, price setting, and potential inefficiencies. Implement Monopsony as a framework for assessing the need for antitrust regulation, market interventions, and supplier protection policies.
Perfect Competition
DescriptionPerfect Competition is a theoretical market structure characterized by a large number of buyers and sellers, homogeneous products, perfect information, and ease of entry and exit. In perfect competition, no single buyer or seller has the power to influence market prices, and buyers and sellers are price takers. By studying perfect competition, economists can understand the theoretical benchmark for market efficiency and resource allocation.
When to ApplyConsider Perfect Competition when analyzing market structures and competitive dynamics. Use it to understand the conditions necessary for perfect competition and the implications for market outcomes, efficiency, and welfare. Implement Perfect Competition as a benchmark for evaluating real-world market structures and regulatory policies.
Oligopoly
DescriptionOligopoly is a market structure characterized by a small number of large buyers dominating the market. In an oligopoly, buyers may have significant market power to influence prices, terms, and conditions of sale. Oligopolistic industries often exhibit interdependence among buyers, with actions by one buyer affecting others. By studying oligopolies, economists can analyze the behavior of buyers in concentrated markets and the implications for competition and market outcomes.
When to ApplyConsider Oligopoly when analyzing industries dominated by a few large buyers. Use it to understand strategic interactions among buyers, including bargaining power, price negotiations, and competitive dynamics. Implement Oligopoly as a framework for assessing market power, antitrust concerns, and regulatory policies in concentrated buyer markets.
Market Power
DescriptionMarket Power refers to the ability of buyers to influence market outcomes, including prices, quantities, and terms of trade. Buyers with market power can exert control over suppliers, demand concessions, and dictate market conditions. Understanding market power is essential for assessing competitive dynamics, market efficiency, and welfare implications.
When to ApplyConsider Market Power when analyzing buyer-seller relationships and competitive dynamics in markets. Use it to assess the ability of buyers to influence prices, quantities, and terms of trade. Implement Market Power as a framework for evaluating market competitiveness, antitrust concerns, and regulatory interventions.
Price Discrimination
DescriptionPrice Discrimination is a strategy used by buyers to charge different prices to different suppliers for the same product or service. Price discrimination allows buyers to capture surplus value and increase their profits by exploiting differences in suppliers’ willingness to sell. By practicing price discrimination, buyers can enhance their bargaining power and extract maximum value from suppliers.
When to ApplyConsider Price Discrimination when analyzing buyer strategies to maximize surplus value and profits. Use it to understand how buyers differentiate prices based on suppliers’ characteristics, bargaining power, and market conditions. Implement Price Discrimination as a strategy for buyers to increase their bargaining power, capture surplus value, and achieve favorable terms from suppliers.
Supply Chain Management
DescriptionSupply Chain Management involves the coordination and integration of activities across the supply chain, from sourcing raw materials to delivering finished products to customers. In oligopsonistic markets, buyers play a crucial role in managing supply chains, selecting suppliers, and optimizing procurement processes. Effective supply chain management can enhance efficiency, reduce costs, and improve supplier relationships in concentrated buyer markets.
When to ApplyConsider Supply Chain Management when analyzing procurement processes and buyer-supplier relationships in oligopsonistic markets. Use it to optimize supply chain activities, mitigate supply chain risks, and improve collaboration with suppliers. Implement Supply Chain Management as a strategy for buyers to enhance efficiency, reduce costs, and achieve competitive advantages in concentrated buyer markets.
Bargaining Power
DescriptionBargaining Power refers to the ability of buyers and sellers to negotiate favorable terms and conditions in transactions. Buyers with stronger bargaining power can demand lower prices, higher quality, or better terms from suppliers. Understanding bargaining power dynamics is essential for assessing market competitiveness, distribution of surplus value, and welfare implications.
When to ApplyConsider Bargaining Power when analyzing buyer-supplier relationships and negotiating strategies in markets. Use it to assess the relative strength of buyers in transactions and the implications for market outcomes. Implement Bargaining Power as a framework for evaluating market competitiveness, pricing strategies, and supplier relationships in oligopsonistic markets.
Elasticity of Supply
DescriptionElasticity of Supply measures the responsiveness of quantity supplied to changes in price. It helps determine how sensitive suppliers are to price changes and how changes in price affect total supply. In oligopsonistic markets, understanding supply elasticity is crucial for predicting supplier responses to changes in buyer demand or prices.
When to ApplyConsider Elasticity of Supply when analyzing supplier behavior and market dynamics in oligopsonistic markets. Use it to assess how changes in price affect the quantity supplied by suppliers and the implications for market equilibrium. Implement Elasticity of Supply as a tool for buyers to anticipate supplier responses, optimize procurement decisions, and mitigate supply chain risks effectively.
Market Concentration
DescriptionMarket Concentration measures the degree to which a small number of buyers dominate the market. High market concentration indicates oligopsonistic market structures, where a few buyers control a significant share of market demand. Understanding market concentration is essential for assessing buyer power, competition levels, and market dynamics in concentrated buyer markets.
When to ApplyConsider Market Concentration when analyzing buyer-seller relationships and competitive dynamics in markets. Use it to assess the degree of buyer dominance and its implications for market competitiveness, pricing behavior, and supplier welfare. Implement Market Concentration as a framework for evaluating antitrust concerns, regulatory policies, and market interventions in oligopsonistic markets.
Regulatory Policies
DescriptionRegulatory Policies aim to promote fair competition, protect consumer interests, and ensure market efficiency in oligopsonistic markets. Regulatory policies may include antitrust laws, competition regulations, and procurement guidelines to prevent anti-competitive behavior, promote transparency, and safeguard supplier welfare. Understanding regulatory policies is crucial for buyers and suppliers operating in concentrated buyer markets to comply with legal requirements and maintain ethical business practices.
When to ApplyConsider Regulatory Policies when operating in oligopsonistic markets subject to regulatory oversight. Use it to understand legal requirements, compliance obligations, and ethical standards governing buyer-supplier relationships. Implement Regulatory Policies as guidelines for buyers and suppliers to promote fair competition, transparency, and market efficiency in concentrated buyer markets.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
