A Market Economy

As we learned earlier, in a market economy decisions about production and consumption are made via markets. In fact, the economy as a whole is made up of many interrelated markets. Up until now, to learn how markets work, we’ve been examining a single market—the market for used textbooks. But in reality, consumers and producers do not make decisions in isolated markets. For example, a student’s decision in the market for used textbooks might be affected by how much interest must be paid on a student loan; thus, the decision in the used textbook market would be influenced by what is going on in the market for money.

We know that an efficient market equilibrium maximizes total surplus—the gains to buyers and sellers in that market. Is there a comparable result for an economy as a whole, an economy composed of a vast number of individual markets? The answer is yes, but with qualifications.

When each and every market in the economy maximizes total surplus, then the economy as a whole is efficient. This is a very important result: just as it is impossible to make someone better off without making other people worse off in a single market when it is efficient, the same is true when each and every market in that economy is efficient. However, it is important to realize that this is a theoretical result: it is virtually impossible to find an economy in which every market is efficient.

For now, let’s examine why markets and market economies typically work so well. Once we understand why, we can then briefly address why markets sometimes get it wrong.

Why Markets Typically Work So Well

Economists have written volumes about why markets are an effective way to organize an economy. In the end, well-functioning markets owe their effectiveness to two powerful features: property rights and the role of prices as economic signals.

Property rights are the rights of owners of valuable items, whether resources or goods, to dispose of those items as they choose.

By property rights we mean a system in which valuable items in the economy have specific owners who can dispose of them as they choose. In a system of property rights, by purchasing a good you receive “ownership rights”: the right to use and dispose of the good as you see fit. Property rights are what make the mutually beneficial transactions in the used-textbook market, or any market, possible.

To see why property rights are crucial, imagine that students do not have full property rights in their textbooks and are prohibited from reselling them when the semester ends. This restriction on property rights would prevent many mutually beneficial transactions. Some students would be stuck with textbooks they will never reread when they would be much happier receiving some cash instead. Other students would be forced to pay full price for brand-new books when they would be happier getting slightly battered copies at a lower price.

An economic signal is any piece of information that helps people make better economic decisions.

Once a system of well-defined property rights is in place, the second necessary feature of well-functioning markets—prices as economic signals—can operate. An economic signal is any piece of information that helps people and businesses make better economic decisions. For example, business forecasters say that sales of cardboard boxes are a good early indicator of changes in industrial production: if businesses are buying lots of cardboard boxes, you can be sure that they will soon increase their production.

But prices are far and away the most important signals in a market economy, because they convey essential information about other people’s costs and their willingness to pay. If the equilibrium price of used books is $30, this in effect tells everyone both that there are consumers willing to pay $30 and up and that there are potential sellers with a cost of $30 or less. The signal given by the market price ensures that total surplus is maximized by telling people whether to buy books, sell books, or do nothing at all.

Each potential seller with a cost of $30 or less learns from the market price that it’s a good idea to sell her book; if she has a higher cost, it’s a good idea to keep it. Likewise, each consumer willing to pay $30 or more learns from the market price that it’s a good idea to buy a book; if he is unwilling to pay $30, then it’s a good idea not to buy a book.

Price is the most important economic signal in a market economy.
© pawel.gaul/istockphoto

This example shows that the market price “signals” to consumers with a willingness to pay equal to or more than the market price that they should buy the good, just as it signals to producers with a cost equal to or less than the market price that they should sell the good. And since, in equilibrium, the quantity demanded equals the quantity supplied, all willing consumers will find willing sellers.

Prices can sometimes fail as economic signals. Sometimes a price is not an accurate indicator of how desirable a good is. When there is uncertainty about the quality of a good, price alone may not be an accurate indicator of the value of the good. For example, you can’t infer from the price alone whether a used car is good or a “lemon.” In fact, a well-known problem in economics is “the market for lemons,” a market in which prices don’t work well as economic signals.

A Few Words of Caution

As we’ve seen, markets are an amazingly effective way to organize economic activity. But as we’ve noted, markets can sometimes get it wrong. We first learned about this in Chapter 1 in our fifth principle of interaction: When markets don’t achieve efficiency, government intervention can improve society’s welfare.

A market or an economy is inefficient if there are missed opportunities: some people could be made better off without making other people worse off.

When markets are inefficient, there are missed opportunities—ways in which production or consumption can be rearranged that would make some people better off without making other people worse off. In other words, there are gains from trade that go unrealized: total surplus could be increased. And when a market or markets are inefficient, the economy in which they are embedded is also inefficient.

Market failure occurs when a market fails to be efficient.

Markets can be rendered inefficient for a number of reasons. Two of the most important are a lack of property rights and inaccuracy of prices as economic signals. When a market is inefficient, we have what is known as market failure. We will examine various types of market failure in later chapters. For now, let’s review the three main ways in which markets sometimes fall short of efficiency.

  1. Markets can fail when, in an attempt to capture more surplus, one party prevents mutually beneficial trades from occurring. This situation arises, for instance, when a market contains only a single seller of a good, known as a monopolist. In this case, the assumption we have relied on in supply and demand analysis—that no individual buyer or seller can have a noticeable effect on the market price—is no longer valid; the monopolist can determine the market price. As we’ll see in Chapter 13, this gives rise to inefficiency as a monopolist manipulates the market price in order to increase profits, thereby preventing mutually beneficial trades from occurring.

  2. Actions of individuals sometimes have side effects on the welfare of others that markets don’t take into account. In economics, these side effects are known as externalities, and the best-known example is pollution. We can think of the problem of pollution as a problem of incomplete property rights; for example, existing property rights don’t guarantee a right to ownership of clean air. We’ll see in Chapter 16 that pollution and other externalities also give rise to inefficiency.

  3. Markets for some goods fail because these goods, by their very nature, are unsuited for efficient management by markets. In Chapter 20, we will analyze goods that fall into this category because of problems of private information— information about a good that some people possess but others don’t. For example, the seller of a used car that is a “lemon” may have information that is unknown to potential buyers.

In Chapter 17, we will encounter other types of goods that fall into the category of being unsuited for efficient management by markets—public goods, common resources, and artificially scarce goods. Markets for these goods fail because of problems in limiting people’s access to and consumption of the good; examples are fish in the sea and trees in the Amazonian rain forest. In these instances, markets generally fail due to incomplete property rights.

But even with these limitations, it’s remarkable how well markets work at maximizing the gains from trade.

!worldview! ECONOMICS in Action: A Great Leap—Backward

A Great Leap—Backward

Although some aspects of central planning remain, China’s economy has moved closer to a free-market system.
©VH Collection: Oriental Touch

Economies in which a central planner, rather than markets, makes consumption and production decisions are known as planned economies. Russia (formerly part of the U.S.S.R.), many Eastern European countries, and several Southeast Asian countries once had planned economies, and countries such as India and Brazil once had significant parts of their economies under central planning. China still does today.

Planned economies are notorious for their inefficiency, and what is probably the most compelling example of that is the so-called Great Leap Forward, an ambitious economic plan instituted in China during the late 1950s by its leader Mao Zedong. Its intention was to speed up the country’s industrialization. Key to this plan was a shift from urban to rural manufacturing: farming villages were supposed to start producing heavy industrial goods such as steel.

Unfortunately, the plan backfired. Diverting farmers from their usual work led to a sharp fall in food production. Meanwhile, because raw materials for steel, such as coal and iron ore, were sent to ill-equipped and inexperienced rural producers rather than to urban factories, industrial output declined as well. The plan, in short, led to a fall in the production of everything in China.

Because China was a very poor country to start with, the results were catastrophic. The famine that followed is estimated to have reduced China’s population by as much as 30 million.

China has recently moved closer to a free-market system, allowing for greater economic growth, increased wealth, and the emergence of a middle class. But some aspects of central planning remain, largely in the allocation of financial capital and other inputs to politically connected businesses. As a result, significant inefficiencies persist. Many economists have commented that these inefficiencies must be addressed if China is to sustain its rapid growth and Chinese consumers are to enjoy the efficient level of consumer surplus.

Quick Review

  • In a market economy, markets are interrelated. When each and every market in an economy is efficient, the economy as a whole is efficient. But in the real world, some markets in a market economy will almost certainly fail to be efficient.

  • A system of property rights and the operation of prices as economic signals are two key factors that enable a market to be efficient. But under conditions in which property rights are incomplete or prices give inaccurate economic signals, markets can fail.

  • Under certain conditions, market failure occurs and the market is inefficient: gains from trade are unrealized. The three principal ways in which markets fail are the prevention of mutually beneficial transactions caused by one party’s attempt to capture more surplus, side effects that aren’t properly accounted for, and problems in the nature of the goods themselves.

4-4

  1. Question 4.6

    In some states that are rich in natural resources, such as oil, the law separates the right to above-ground use of the land from the right to drill below ground (called “mineral rights”). Someone who owns both the above-ground rights and the mineral rights can sell the two rights separately. Explain how this division of the property rights enhances efficiency compared to a situation in which the two rights must always be sold together.

  2. Question 4.7

    Suppose that in the market for used textbooks the equilibrium price is $30, but it is mistakenly announced that the equilibrium price is $300. How does this affect the efficiency of the market? Be specific.

  3. Question 4.8

    What is wrong with the following statement? “Markets are always the best way to organize economic activity. Any policies that interfere with markets reduce society’s welfare.”

Solutions appear at back of book.

StubHub Shows Up The Boss

Back in 1965, long before Ticketmaster, StubHub, and TicketsNow, legendary rock music promoter Bill Graham noticed that mass parties erupted wherever local rock groups played. Graham realized that fans would pay for the experience of the concert, in addition to paying for a recording of the music. He went on to create the business of rock concert promoting—booking and managing multicity tours for bands and selling lots of tickets. Those tickets were carefully rationed, a single purchaser allowed to buy only a limited number. Fans would line up at box offices, sometimes camping out the night before for popular bands.

Splash News/Newscom

Wanting to maintain the aura of the 1960s that made rock concerts accessible to all their fans, many top bands choose to price their tickets below the market equilibrium level. For example, in 2012 Bruce Springsteen sold tickets at his concerts in New Jersey (his home state and home to his most ardent fans) for between $68 and $98. Tickets for Springsteen concerts could have sold for far more: economists Alan Krueger and Marie Connolly analyzed a 2002 Springsteen concert for which every ticket sold for $75 and concluded that The Boss forfeited about $4 million by not charging the market price, about $280. He likely forfeited much more surplus in 2012 as ticket prices soared to over $6,000 online at various resale sites.

So what was The Boss thinking? Cheap tickets can ensure that a concert sells out, making it a better experience for both band and audience. But it is believed that other factors are at work—that cheap tickets are a way for a band to reward fans’ loyalty as well as a means to seem more “authentic” and less commercial. As Bruce Springsteen has said, “In some fashion, I help people hold on to their own humanity—if I’m doing my job right.”

But the rise of the internet has complicated matters. Now, rather than queue for tickets at the venue, fans buy tickets online, either from a direct seller like Ticketmaster (which obtains tickets directly from the concert producer) or a reseller like StubHub or TicketsNow. Resellers (otherwise known as scalpers) can—and do—make lots of money by scooping up large numbers of tickets at the box office price and reselling them at the market price. StubHub currently dominates what has become a $5 billion resale market for tickets.

This practice has infuriated fans as well as bands. But resellers have cast the issue as one of the freedom to dispose of one’s ticket as one chooses. Since ticket reselling comes under the purview of state laws, the two sides have been lobbying furiously to get an advantage. And as of 2014, there is a hodgepodge of state laws governing ticket reselling. Many states, such as Alaska, impose no restrictions on reselling. In contrast, Michigan forbids ticket reselling without permission from the event’s sponsor. In general, the trend at the state level has been to allow ticket reselling as long as consumers are adequately protected against fraud.

QUESTIONS FOR THOUGHT

  1. Question 4.9

    Use the concepts of consumer surplus and producer surplus to analyze the exchange between The Boss and his fans. Draw a diagram to illustrate.

  2. Question 4.10

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    Explain how the rise of the internet has disrupted this exchange.
  3. Question 4.11

    Draw a diagram to show the effect of resellers on the allocation of consumer surplus and producer surplus in the market for concert tickets. What are the implications of the internet for all such exchanges?