

The best examples of natural monopolies are software and digital editions of media, such as movies, TV shows, music, magazines, and books, because the cost of producing additional items decreases continually. When average total cost declines over the entire market, then a natural monopoly exists. However, if ATC declines over the quantity demanded by the market, then a single firm can dominate that market, since other firms would not be able to achieve the same economies of scale when the market is already dominated by a seller. Eventually, average total cost of most products increases as the limits of the fixed resources is approached. Because almost every firm has fixed costs, the cost to supply most products will generally decline with increasing quantity because these fixed costs can be apportioned to a greater supply of the product, which reduces the average total cost of each product. Economies of ScaleĮconomies of scale result when the average total cost ( ATC) of a product declines with increasing quantity produced. However, the most common natural barrier to entry is when the production of a product exhibits large economies of scale.


These 3 characteristics must all be present for a monopoly to exist otherwise, a monopoly would be reduced to an oligopoly, a monopolistic competition, or even pure competition.Īnother characteristic of monopolies is that they do not need to advertise their product to increase market share. There must be significant barriers to entry so that no competitors can enter the market.For instance, there are several computer operating systems available that consumers can use, but because many people have already made significant investments in hardware and software that require specific operating systems, they cannot easily switch - they are locked into their choices.

There must be no close substitutes for the product or there must be some other economic barrier that prevents users from using substitutes.It must be a single seller in the market.To achieve this so-called market power, a monopoly must have several characteristics.
