Monopoly: Perfect Competition and Demand Curve

The cost functions are the same. Both monopolies and perfectly competitive companies minimize cost and maximize profit. The shutdown decisions are the same. Both are assumed to have perfectly competitive factors markets. compare monopoly and perfect competition is the four characteristics of perfect competition: (1) large number of relatively small firms, (2) identical product, (3) freedom of entry and exit, and (4) perfect knowledge.

* Number of Firms: Perfect competition is an industry comprised of a large number of small firms, each of which is a price taker with no market control. Monopoly is an industry comprised of a single firm, which is a price maker with total market control. Phil the zucchini grower is one of gadzillions of zucchini growers.Feet-First Pharmaceutical is the only firm that sells Amblathan-Plus, a drug that cures the deadly (but hypothetical) foot ailment known as amblathanitis.

* Available Substitutes: Every firm in a perfectly competitive industry produces exactly the same product as every other firm. An infinite number of perfect substitutes are available. A monopoly firm produces a unique product that has no close substitutes and is unlike any other product. Gadzillions of firms grow zucchinis, each of which is a perfect substitute for the zucchinis grown by Phil the zucchini grower. There are no substitutes for Amblathan-Plus.Feet-First Pharmaceutical is the only supplier.

* Resource Mobility: Perfectly competitive firms have complete freedom to enter the industry or exit the industry. There are no barriers. A monopoly firm often achieves monopoly status because the entry of potential competitors is prevented. Anyone can grow zucchinis. All they need is a plot of land and a few seeds.

Feet-First Pharmaceutical holds the patents on Amblathan-Plus. No other firm can enter the market.* Information: Each firm in a perfectly competitive industry possesses the same information about prices and production techniques as every other firm. A monopoly firm, in contrast, often has information unknown to others.

Everyone knows how to grow zucchinis (or can easily find out how). Feet-First Pharmaceutical has a secret formula used in the production of Amblathan-Plus. This information is not available to anyone else. The consequence of these differences include:* First, the demand curve for a perfectly competitive firm is perfectly elastic and the demand curve for a monopoly firm is THE market demand, which is negatively-sloped according to the law of demand. A perfectly competitive firm is thus a price taker and a monopoly is a price maker. Phil must sell his zucchinis at the going market price.

It he does not like the price, then he does not sell zucchinis.Feet-First Pharmaceutical can adjust the price of Amblathan-Plus, either higher or lower, and so doing it can control the quantity sold. * Second, the monopoly firm charges a higher price and produces less output than would be achieved with a perfectly competitive market. In particular, the monopoly price is not equal to marginal cost, which means a monopoly does not efficiently allocate resources.

Although Feet-First Pharmaceutical charges several dollars per ounce of Amblathan-Plus, the cost of producing each ounce is substantially less. Phil, in contrast, just about breaks even on each zucchini sold.* Third, while an economic profit is NOT guaranteed for any firm, a monopoly is more likely to receive economic profit than a perfectly competitive firm. In fact, a perfectly competitive firm IS guaranteed to earn nothing but a normal profit in the long run.

The same cannot be said for monopoly. The price of zucchinis is so close to the cost of production, Phil never earns much profit. If the price is relatively high, other zucchini producers quickly flood the market, eliminating any profit. In contrast, Feet-First Pharmaceutical has been able to maintain a price above production cost for several years, with a handsome profit perpetually paid to the company shareholders year after year.* Fourth, the positively-sloped marginal cost curve for each perfectly competitive firm is its supply curve. This ensures that the supply curve for a perfectly competitive market is also positively sloped.

The marginal cost curve for a monopoly is NOT, repeat NOT, the firm's supply curve. There is NO positively-sloped supply curve for a market controlled by a monopoly. A monopoly might produce a larger quantity if the price is higher, in accordance with the law of supply, or it might not. If the price of zucchinis rises, then Phil can afford to grow more. If the price falls, then he is forced to grow less. Marginal cost dictates what Phil can produce and supply.

Feet-First Pharmaceutical, in comparison, often sells a larger quantity of Amblathan-Plus as the price falls, because they face decreasing average cost with larger scale production.* The single seller, of course, is a direct contrast to perfect competition, which has a large number of sellers. In fact, perfect competition could be renamed multipoly or manypoly, to contrast it with monopoly. The most important aspect of being a single seller is that the monopoly seller IS the market. The market demand for a good IS the demand for the output produced by the monopoly.

This makes monopoly a price maker, rather than a price taker. * A hypothetical example that can be used to illustrate the features of a monopoly is Feet-First Pharmaceutical. This firm owns the patent to Amblathan-Plus, the only cure for the deadly (but hypothetical) foot ailment known as amblathanitis. As the only producer of Amblathan-Plus, Feet-First Pharmaceutical is a monopoly with extensive market control.

The market demand for Amblathan-Plus is THE demand for Amblathan-Plus sold by Feet-First Pharmaceutical. * Unique Product* To be the only seller of a product, however, a monopoly must have a unique product. Phil the zucchini grower is the only producer of Phil's zucchinis. The problem for Phil, however, is that gadzillions of other firms sell zucchinis that are indistinguishable from those sold by Phil. * Amblathan-Plus, in contrast, is a unique product.

There are no close substitutes. Feet-First Pharmaceutical holds the exclusive patent on Amblathan-Plus. No other firm has the legal authority to produced Amblathan-Plus.And even if they had the legal authority, the secret formula for producing Amblathan-Plus is sealed away in an airtight vault deep inside the fortified Feet-First Pharmaceutical headquarters. * Of course, other medications exist that might alleviate some of the symptoms of amblathanitis. One ointment temporarily reduces the swelling.

Another powder relieves the redness. But nothing else exists to cure amblathanitis completely. A few highly imperfect substitutes exists. But there are no close substitutes for Amblathan-Plus. Feet-First Pharmaceutical has a monopoly because it is the ONLY seller of a UNIQUE product. * Barriers to Entry and Exit* A monopoly is generally assured of being the ONLY firm in a market because of assorted barriers to entry.

Some of the key barriers to entry are: (1) government license or franchise, (2) resource ownership, (3) patents and copyrights, (4) high start-up cost, and (5) decreasing average total cost. * Feet-First Pharmaceutical has a few these barriers working in its favor. It has, for example, an exclusive patent on Amblathan-Plus. The government has decreed that Feet-First Pharmaceutical, and only Feet-First Pharmaceutical, has the legal authority to produce and sell Amblathan-Plus.* Moreover, the secret ingredient used to produce Amblathan-Plus is obtained from a rare, genetically enhanced, eucalyptus tree grown only on a Brazilian plantation owned by Feet-First Pharmaceutical. Even if another firm knew how to produce Amblathan and had the legal authority to do so, they would lack access to this essential ingredient.

* A monopoly might also face barriers to exiting a market. If government deems that the product provided by the monopoly is essential for well-being of the public, then the monopoly might be prevented from leaving the market. Feet-First Pharmaceutical, for example, cannot simply cease the production of Amblathan-Plus. It is essential to the health and welfare of the public.* This barrier to exit is most often applied to public utilities, such as electricity companies, natural gas distribution companies, local telephone companies, and garbage collection companies. These are often deemed essential services that cannot be discontinued without permission from a government regulation authority.

* Specialized Information* Monopoly is commonly characterized by control of information or production technology not available to others. This specialized information often comes in the form of legally-established patents, copyrights, or trademarks. While these create legal barriers to entry they also indicate that information is not perfectly shared by all. The AT&T telephone monopoly of the late 1800s and early 1900s was largely due to the telephone patent. Pharmaceutical companies, like the hypothetical Feet-First Pharmaceutical, regularly monopolize the market for a specific drug by virtue of a patent. * In addition, a monopoly firm might know something or have a piece of information that is not available to others.

This "something" may or may not be patented or copyrighted. It could be a secret recipe or formula. Perhaps it is a unique method of production. * One example of specialized information is the special, secret formula for producing Amblathan-Plus that is sealed away in an airtight vault deep inside the fortified Feet-First Pharmaceutical headquarters.

No one else has this information.