Without bandying jargon or exhibiting formulae, without being superficial or condescending, the scientist should be able to communicate to the public the nature and variety of consequences that can reasonable be expected to flow from a given action or sequence of actions. In the case of the economist, he can often reveal in an informal way, if not the detailed chain of reasoning by which he reaches his conclusions, at least the broad contours of the argument.
E. J. Mishan
arlier chapters showed how the models of competitive and monopolistic markets
illuminate the economic effects of market changes, such as an increase in the price
of oil. This chapter will examine the use of government controls to soften the
impact of such changes. We will consider four types of government control: excise taxes, price controls, consumer protection laws, and minimum-wage laws. As we will see, government controls can inspire management reactions that negate some of the expected effects of the controls.
Who Pays the Tax?
Most people are convinced that consumers bear the burden of excise (or sales) taxes. They believe producers simply pass the tax on to consumers at higher prices. Yet every time a new (or increased) excise tax is proposed producers lobby against it. If excise taxes could be passed on to consumers, firms would have little reason to spend hundreds of thousands of dollars opposing them. In fact, excise taxes do hurt producers.
the margarine industry’s supply and demand curves, S1 and D. In a competitive market, the price will end toward P2 and the quantity sold toward Q3. If the state imposes a $0.25 tax on each pound of margarine sold and collects the tax from producers, it effectively raises the cost of production. The producer must now pay a price not just for the right to use resources, such as equipment and raw materials, but for the right to continue production legally. The supply curve, reflecting this cost increase, shifts to S2. The vertical difference between the two curves, P2 and P1, represents the extra $0.25 cost added by the tax.
Figure 4.1 The Economic Effect of an Excise Tax
An excise tax of $0.25 will shift the supply curve for margarine to the left, from S1 to S2. The quantity produced will fall from Q3 to Q2; the price will rise from P2 to P3. The increase, $0.20, however, will not cover the added cost to the producer, $0.25.
Given the shift in supply, the quantity of margarine produced falls to Q2 and the price rises to P3. Note, however, that the price increase (P1 to P2) is less than the vertical distance between the two supply curves (P2 to P1). That is, the price increases by less than the amount of the tax that caused the shift in supply. Clearly, the producer’s net has fallen. If the tax is $0.25, but the price paid by consumers rises only $0.20 ($1.20 ¬$1.00), the producer loses $0.50. It now nets only $0.95 on a product that used to bring $1.00. In other words, the tax not only reduces the quantity of margarine producers can sell, but makes each sale less profitable.
Incidentally, butter producers have a clear incentive to support a tax on margarine. When the price of margarine increases, consumers will seek substitutes. The demand for butter will rise, and producers will be able to sell more butter and charge more for each pound.
The $0.25 tax in our example is divided between consumers and producers, although most of it ($0.20) is paid by consumers. Why do consumers pay most of the tax? Consumers bear most of the tax burden because consumers are relatively unresponsive to the price change. The result, as depicted in Figure 4.1, is that consumers bear most of the tax burden while producers pay only a small part (20 percent) of the tax. If consumers were more responsive to the price change, then a greater share of the tax burden would fall on producers who would then have more incentive to oppose the tax politically. Indeed, we should that the amount of money producers would be willing to spend to oppose taxes on their product (through campaign contributions or lobbying) will depend critically on the responsiveness of consumers to a price change. The more responsive consumers are, the more producers should be willing to spend to oppose the tax.
Price Controls
Price controls are by no means a modern invention. The first recorded legal code, the four-thousand-year-old Code of Hammurabi, included regulations governing the maximum wage, housing prices, and rents on property such as boats, animals, and tools. And in A.D. 301, the Roman Emperor Diocletian issued an edict specifying maximum prices for everything from poultry to gold, and maximum wages for everyone from lawyers to the cleaners of sewer systems. The penalty for violating the edict was death. More recently, wage and price controls have been used both in wartime (during the Second World War and the Korean War) and in peacetime. President Richard Nixon imposed an across-the-board wage-price freeze in 1971. Prime Minister Pierre Trudeau imposed controls on the Canadian economy in 1975. President Jimmy Carter controlled energy prices in 1977 and later proposed the decontrol of natural gas.
Wage and price controls are almost always controversial. Like attempts to control expenditures, they often create more problems than they solve. We will examine both sides of the issue, starting with the argument in favor of controls.
Figure 4.2 The Effect of an Excise Tax When Demand is More Elastic Than Supply
If demand is much more elastic than supply, the quantity purchased will decline significantly when supply decreases from S1 to S2 in response to the added cost of the excise tax. Producers will lose $0.20; consumers will pay only $0.05 more.
The Case for Price Controls
The case for price ceilings on particular products is complex. On the most basic level, many people believe that prices should be controlled to protect citizens from the harmful effects of inflation. When prices start to rise, redistributing personal income and disrupting the status quo, it seems unfair. Price controls may seem especially legitimate to people, like the elderly, who must live on fixed incomes, and have little means of compensating for the effects of price increases on goods like oil and gas.
Unearned Profits
Many proponents of price controls view the supply curve for a controlled good as essentially vertical. They believe that a price rise will not affect the quantity produced. Consumers will get nothing more in the way of goods, but producers will reap a windfall profit. Instead of an incentive to produce more, profit is seen as an economic rent—an exploitative surplus received by companies fortunate enough to be in the market at the right time.
Administered Prices
A technical argument for price controls is most often advanced by economists and public officials. Many economists maintain that a significant segment of the business and industrial community—the larger firms that control a sizable portion of industry sales— no longer responds to the forces of supply and demand. Firms in highly concentrated industries like steel, automobiles, computers, and tobacco can override market forces by manipulating their output so as to set price levels. Furthermore, they can manage the demand for their products through advertising campaigns. With market forces ineffective, control must come from the government. Price controls are the only way to avoid the production inefficiencies and inequitable distribution of income that result from concentration of industry. As John Kenneth Galbraith, a leading advocate of price controls, has put it, “Controls are made necessary because planning has replaced the market system. That is to say that the firm and the union have assumed the decisive power in setting prices and wages. This means that the decision no longer lies with the market and thus with the public.”1
Monopoly Power
Later in the course, we will see how a monopolist can be expected to restrict output in order to push up its price in order to earn greater profits. The case for price controls under monopoly conditions is, for many advocates of controls, a matter of “fairness.” The controls give back to consumers what they “deserve” in terms of lower prices. However, as we will see, under monopoly conditions, if the producer is forced to charge a (somewhat) lower price, the producer will rationally choose to increase the output level. Hence, price controls benefit consumers in two ways, first through lower prices and then through greater output.
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