Prices motivate economic players

Market prices establish a reward-penalty (profit-loss) structure that encourages people to work, cooperate with others, use efficient production methods, supply goods that are intensely desired by others, and invest for the future. Self-interested entrepreneurs will seek to produce only the goods consumers value enough to pay a price sufficient to cover production cost. Self-interest will also encourage producers to use efficient production methods and adopt cost-saving technologies because lower costs will mean greater profits. Firms that fail to do so will be unable to compete successfully in the marketplace.
How is it that refrigerators, automobiles, and CD players, produced at different places around the world, make their way to stores near you in approximately the same numbers that they are demanded by consumers? The invisible hand principle provides the answer, and it works without political direction. No government agency needs to tell decision makers to keep costs low or produce those goods most intensely desired by consumers. Similarly, no one has to tell individuals that they should
- develop skills that are highly valued by others. Once again the profit motive
- higher earnings
in this case will do the job. Many of the things we take for granted in our ordinary lives reflect the invisible hand at work.

Prices communicate information to decision makers

Suppose a drought in Brazil severely reduces the supply of coffee. Coffee prices will rise. Even if consumers do not know about the drought, the higher prices will provide them with all the
Is the concept of the invisible hand really valid? Next time you sit down to have a nice dinner, think about all the people who help make it possible. It is unlikely that any of them, from the farmer to the truck driver to the grocer, was motivated by a concern that you have an enjoyable meal. Market prices, however, bring their interest into harmony with yours. Farmers who raise the best beef or turkeys receive higher prices; truck drivers and grocers earn more money if their products are delivered fresh and in good condition; and so on.
- An amazing degree of cooperation and order is created by market exchanges
- information they need to know
it’s time to cut back on coffee consumption. Market prices register information derived from the choices of millions of consumers, producers, and resource suppliers, and provide them with everything they need to
know to make wise decisions.
Market prices provide producers with up-to-date information about which goods consumers most intensely desire, and with important information about the abundance of the resources used in the production process. The cost of production, driven by the opportunity cost of resources, tells the business decision maker the relative importance others place on the alternative uses of those resources. A boom in the housing market might cause lumber prices to rise. In turn, furniture makers seeing these higher lumber prices will utilize substitute raw materials such as metal and plastic in their production processes. Because of market prices, furniture makers will conserve on their use of lumber, just as if they had known that lumber was now more urgently needed for constructing new housing.