Market concentration and high markups don't always signal a monopoly

An overview of monopolies, when one company controls an entire market

In the business world, a monopoly exists when one company controls the entire market. Regulators take issue with monopolies because they have been found to limit consumer choices, raise prices, and hurt competition.

Monopolies are considered the most extreme form of imperfect competition

True monopolistic companies face no competition, meaning there aren't any near substitutes for the goods or services the company provides. Often, no competition exists because the monopoly is either approved by the government or the barrier to entry is costly.

Utility companies are often considered 'natural' monopolies, which occur in industries where the upfront costs of entering the market are high, making competition unrealistic.

A 'bilateral monopoly' occurs when there's one supplier and one buyer in a market

Bilateral monopolies are often used to conceptualize labor markets in small towns. Using this concept, large employers have a monopoly over the labor market, while workers have a monopsony as the only available laborers.

An oligopoly is a market structure where a few large businesses dominate the entire market

When a few large companies dominate a market, changes in pricing for goods and services affect the entire market. Airlines are a common example of an oligopoly. Because the barrier to entry in the aviation industry is high, only a few airline companies offer the majority of the industry's services. While there is some competition, pricing across the board is largely intertwined and based on other companies' prices.

A 'monopsony' is a market with a single buyer—rather than a single supplier

A monopsony is the demand-side equivalent of a monopoly, where a single buyer commands a market. In a monopsony, the buyer has an outsized influence over the price of a product or service because they control most or all of the sales in that market.

Read the Federal Trade Commission's legal definition of a monopoly

The Federal Trade Commission and the US Department of Justice (DOJ) Antitrust Division are the regulatory agencies responsible for overseeing antitrust laws. Before deeming any company a monopoly or acknowledging monopolistic power in a market, the FTC conducts thorough research into market competition, price, and even other competitors' business practices.

Network effects are the economic term for a good or service's popularity

When goods or services become especially popular, firms that provide that good or service become dominant in the market—which can ultimately lead to a monopoly.

Nvidia controls more than four-fifths of the GPU market—but isn't considered a monopoly

Semiconductor company Nvidia has a commanding market share when it comes to graphics processing units. Its competitors include Advanced Micro Devices and Intel, which together account for less than a fifth of the GPU market.

Watch how American monopolies used vertical and horizontal integration strategies to command markets

Vertical integration occurs when a company controls the entire manufacturing or development process, whereas horizontal integration involves expanding a company's market share. Both strategies have been used by US monopolies to establish dominance in markets.

Private companies are often harder to value than public companies

That's partly because there isn't readily available stock information, and financial accounting is kept behind closed doors. Typically, determining the value of a private company involves, among other things, closely comparing the private company with its competitors.

Learn more about the four main market structures

In modern economic theory, there are four main market structures. Under each market structure, firms (or businesses) have differing levels of competition and reach different levels of price efficiency based on the consumer's willingness to pay for a product or service.

Modern examples of oligopolies include the airline industry

An oligopoly is a market structure dominated by a few key suppliers. In the US, as of 2021, just four airlines (Delta, United, Southwest, and American) controlled nearly two-thirds of all domestic flights, making the US airline industry one example of an oligopoly.

Smart pricing algorithms can unintentionally work together to raise prices

Researchers have found that, through trial and error, algorithms designed to adjust prices based on market data can learn to mimic price-fixing tactics, even without explicit programming to do so. Over time, they "learn" that it is more profitable to avoid price wars and keep prices high when competitors lower prices.

Robber barons, the monopolistic business people of the 19th century, explained

“Robber baron” was a term used to describe 19th-century businesspeople who engaged in monopolistic business practices and didn’t face much business regulation, resulting in significant wealth.

Explore a list of well-known monopolies

Many American monopolies popped up during the rapid industrial growth of the Gilded Age. Industries like steel, tobacco, railroads, and telecommunication have all been monopolized at some point in history.

Legendary venture capitalist Peter Thiel once wrote that 'competition is for losers'

With Peter Thiel's "Monopoly Theory," the Founders Fund partner argued that investing in companies that create new categories, rather than those that compete with other businesses in existing ones, is a best practice in venture capital.

Private equity firms can be 'powerful partners' or 'formidable competitors'

Under the best circumstances, PE firms can increase a company's value using strategies that might not be suitable for public companies facing pressure for immediate shareholder returns. But PE firms are often portrayed negatively due to the aggressive strategies they sometimes use to cut inefficiencies. As PE has grown, many firms have changed their strategies, shifting away from aggressive scaling to more integrated acquisitions.

Monopoly was based on the satirical Landlord's Game, which criticized the abilities Monopoly rewarded.

What something costs is reflective of a balance in the market determined by the amount of demand relative to the supply of goods and services

Because economies are complex systems, a wide variety of issues influence this balance—including some things generally considered to be positive, like rising wages.

American CEOs are so wealthy in part because of stock buybacks, the process of a company purchasing shares of its own stock.

The dot-com stock bubble taught Howard Marks about markets

Annual investment letters from Howard Marks, the billionaire cofounder of top distressed debt shop Oaktree Capital Management, are required reading on Wall Street. The prolific writer and investor explains the distinction between the folly of trying to time the market and the necessity of paying attention to market cycles. The difference makes all the difference in returns.

Should companies be owned by their workers?

In the last half-century, so-called private equity has transformed industries by purchasing private companies, cutting costs, loading up debt, and then selling the business at a premium—all at a huge profit to the investors. Workers, on the other hand, are often left with nothing. Listen to how both pro-worker economists and a private equity stalwart are trying to shift ownership to workers—a growing tactic proven to improve worker satisfaction and company value.

Patents arguably grant inventors monopolies for a short period of time

As a way to reward innovation, the government grants short-term monopolies on patented products. Patents block other companies from producing or selling that product, giving inventors the rights and opportunity to establish themselves in a market before other competitors enter.

Standard Oil's predatory business practices included temporarily operating at a loss to drive competitors out of business

Rockefeller's oil monopoly had a dark side, including cutting oil prices so low that Standard Oil was sometimes temporarily operating at a loss in order to drive competitors out of business.

Private equity deals sometimes come with layoffs.

The value of a trademark is just one element of brand valuation

Brand valuations give companies an idea of how valuable assets, like logos, are to the company and can help determine how much money branding departments should receive. Typically, brand valuations are a compilation of brand awareness metrics, like a consumer's willingness to pay, the value of a trademark, and the company's market position.

The median trademark of public companies in the US is worth $22.5M

There are multiple approaches to evaluating the value of a trademark. Some strategies include analyzing the value of royalty payments a trademark produces and the cost of recreating the trademark or brand.

The CEOs of the two top prediction markets have a fierce rivalry

Kalshi CEO Tarek Mansour and Polymarket CEO Shayne Coplan are both billionaire CEOs of the top two prediction markets—but they don't exactly get along. For instance, Mansour reportedly does not say the word "Polymarket" out loud, referring to it as the "non-American, unregulated platform."

All-you-can-eat buffets are a practical demonstration of economic ideas

Economists have noticed some restaurant goers prefer a flat pricing model despite it usually being more expensive than per-dish costs. The strategy behind endless servings includes concepts such as economy of scale, cross-subsidization, diminishing returns (of enjoyment of excess food), and more.

Modern antitrust law was created to combat the Standard Oil Trust

John D. Rockefeller's Standard Oil Trust enabled him to evade laws against a single corporation buying stock in another. His centralized board of directors held stock in many different oil companies under his control, allowing Rockefeller to eventually monopolize the oil refining industry. Efforts to regulate and prevent the Standard Oil Trust's monopoly became known as "antitrust" laws.

Indicators of economic bubbles include euphoric narratives and extreme valuations.

In 2020, the US DOJ sued Google for unlawful monopolization of the search engine market

The US Department of Justice and numerous states accused Google of making exclusionary agreements with Android phone manufacturers to make its search engine the default on those devices, preventing competitors from gaining market share.

Despite being completely legal to discuss salaries with your coworkers, the practice largely remains taboo in the US, particularly amongst older workers.

Pay transparency—once considered taboo—is gaining momentum. Despite being legally protected since 1935, open salary discussions have only recently become more common, especially among younger workers. This overview explores how cultural norms, economic shifts, and new state laws are reshaping the conversation around what we earn.

It's tough to measure just how much the global commodities market is worth

That's partly because of all the different ways and places commodities are traded—such as futures exchanges, spot markets, and over-the-counter deals. Additionally, the same commodity can be traded multiple times in different markets, making it easy to risk duplicating trade values in calculations.

In 1936, the federal government passed the Robinson-Patman Act, an antitrust law initially aimed at breaking up the power of the grocery store chain A&P.

Policymakers make complex trade-offs when considering tariffs—while they can generate government revenue and encourage the consumption of locally produced goods, they can also lead to higher consumer prices and may negatively impact economic growth.

Read about the history of the Sherman Antitrust Act, the first law to ban monopolistic behavior

In its later years, Standard Oil formed a business trust that reflected the company's exponential growth. Politicians wanted to prevent such trusts and used the Sherman Antitrust Act to force Standard Oil to break up.

Critics argue the Dow no longer reflects the modern economy

With only 30 companies and a price-weighted formula, skeptics say the DJIA underrepresents vast sectors of the market. They claim it is outdated, though its close correlation with the broader S&P 500 keeps it relevant.

Explore 'The Big Mac Index,' an economic indicator created by The Economist as a cheeky reference for the purchasing power of consumers across different countries.

Read about different levels of price discrimination

Price discrimination is a business practice in which different customers are charged different prices for the same product or service. It's one way for a business to boost profits and take advantage of its market position. There are three levels of price discrimination, differentiated by the consumers targeted and the reasons for discrimination.

Stock buybacks are when a company purchases some of its own shares of stock

This reduces the number of shares on the market and, therefore, makes the remaining shares more valuable. Buybacks have received a lot of criticism in recent years for many reasons, such as how they could artificially inflate share prices.

How chaos helps explain why small market corrections can produce major economic instability

Oxford University complex systems professor Doyne Farmer discusses how predictions from many economic models are overly weighted toward simple relationships, such as supply and demand, and external shocks, such as the COVID-19 pandemic. However, real-world macroeconomic systems involve public and private actors interacting, producing feedback loops and cascading effects that resemble the oscillatory behavior seen in chaotic systems.

The world's 50 most valuable private companies

While public companies typically have the highest valuations, private companies get close. This list breaks down the top 50 as of 2025, with SpaceX at the top with a value of $350B, followed by ByteDance. Over three-fifths of the list are located in the US, with eight in China.

The drastically different seat tiers on airplanes are a prime example of 'price segmentation,' which is key to keeping airlines profitable.

OPEC often intervenes to influence the price of oil

This guide explains how investing in oil works with in-depth explanations of each of the forces that control oil’s price. Oil is unique as a commodity in part because of OPEC’s role in regulating its price.

Read a breakdown of the pros and cons of pay transparency.

While the benefits of pay transparency may seem plentiful to some, there are a few less obvious downsides. For instance, some argue companies that implement pay transparency could end up hiring fewer people or pitting employees against each other. For a full list of perceived pros and cons of pay transparency, click here.

Ray Dalio has argued that American capitalism is broken, citing economic factors like a growing wealth divide

Dalio also points to stalling income growth, weak healthcare systems, and poor educational outcomes when arguing that American capitalism needs serious reform. However, critics point out that Dalio has amassed a large fortune by running the world's largest hedge fund and question whether Dalio really wants economic reform.

'The stock market' can be loosely defined as a set of exchanges and other places where shares of public companies are bought and sold.

Explore a tool that shows how much stake large asset managers, including BlackRock, hold in public companies.