Lecture 3: The Free Market: Adam Smith (1632 – 1704)

Freedom and Tradition: An Introduction to Classical Liberalism and Conservatism

A Course with Professor Thomas Patrick Burke
Fall 2006

The publication in 1776 of Adam Smith’s book An Inquiry into the Nature and Causes of the Wealth of Nationsbrought about a revolution in the economic life of the human race which is still continuing. From the beginnings of recorded history, governments have used their power to influence commerce in ways they thought desirable, often to give special benefits to particular groups of people. The Romans organized their empire so that the people of the city of Rome (who often had decisive influence in the selection of the emperor) had free “bread and circuses” at the expense of those who lived in more remote regions (such as the Egyptians, who were compelled to provide the wheat for the bread at low Roman prices). During the middle ages in much of Europe the “three-field” system was imposed on farmers, whereby all the land of the village was divided up into long, narrow strips distributed over fertile and arid land in the interests of “fairness.” The Elizabethans legislated a maximum wage, to protect employers from excessive competition; and so on. In international trade before Adam Smith the prevailing system was what is known as “mercantilism,” which we will need to explain at greater length.

This system was based on the apparently common-sense assumption that wealth consisted in money, and therefore that the wealth of any particular nation consisted in the amount of money the nation as a whole possessed, and especially its government. It followed from this that the aim of trade was to maximize the nation’s quantity of money. And since money is obtained by selling rather than by buying, the aim of trade was to sell as much as possible and buy as little as possible, i.e. to export as much as possible and import as little as possible. This principle led the nations of Europe, especially Britain and France, which were the furthest developed as nation-states, to create overseas empires whose peoples would be obliged to buy the goods produced by the mother-country at maximum prices, and sell it their own products at minimum prices. (Actually the British Empire grew initially mostly by accident, without any grand plan of the British government, as a result of the need to protect British traders from assault by envious locals. But once an area was brought into the empire, the mercantilist system was imposed through tariffs and other means.) Inevitably this led to armed conflict between these empires, as in the French and Indian War in North America, since a benefit to one was a loss to the other.  Adam Smith’s thesis is that this immense system stretching right around the globe was an immense mistake and a recipe for poverty rather than for wealth. The wealth of a nation does not consist in money, he argued, but in the goods and services available to its citizens. These are two very different things. Money, i.e. gold and silver, is a commodity and its price can change depending on its availability. Spain received a great deal of gold from its conquests in South America, but this did not help the living standards of the Spanish people, who remained poor. The aim of trade, then, is to maximize the availability of goods and services. This is accomplished, not by selling, but rather by buying. That nation will be wealthiest which buys as much as it can from the labor of others, while selling as little as possible of its own labor to pay for it. (Smith adopts the view suggested by John Locke, known as the labor theory of value, that the value of any product is created chiefly by the labor that goes into it. This was intended just as part of his theory of private property: property is acquired in the first instance out of nature by the labor of the person who makes it available for human consumption. Many subsequent writers, such as Marx, misunderstood this to mean that there is an objective value in every object of commerce, namely the number of hours of labor invested in it, which ought to determine its price. Smith does not go so far, though he does accept the idea of a “natural value.” Hobbes, by contrast, had stated what is now the universal view of economists, that the market value of any product is given by the demand for it. “The value of all things contracted for is measured by the appetite of the contractors, and therefore the just value is that which they be contented to give.”) Since we must labor to produce exports, but not imports, the purpose of exports is just to pay for imports, and so the less we have to pay for any given quantity of imports, the better. But in the long run the best way to achieve this is not by the government giving special favors to imports, for that will instigate similar measures by other governments in favor of their own imports and against our exports, but by “the simple system of natural liberty” which allows everyone to buy or sell what he likes.  Smith begins his work with a discussion of the central role of labor.

“The annual labour of every nation is the fund which originally supplies it with all the necessaries and conveniences of life which it annually consumes, and which consist always either in the immediate produce of that labour, or in what is purchased with that produce from other nations.

According therefore as this produce, or what is purchased with it, bears a greater or smaller proportion to the number of those who are to consume it, the nation will be better or worse supplied with all the necessaries and conveniences for which it has occasion. (Introduction)”

This depends in the first instance on the “skill, dexterity and judgment” with which its labor is generally supplied rather than on the number of people employed.

“Among the savage nations of hunters and fishers, every individual who is able to work, is more or less employed in useful labour, and endeavours to provide, as well as he can, the necessaries and conveniences of life, for himself, or such of his family or tribe as are either too old, or too young, or too infirm to go a hunting and fishing. Such nations, however, are so miserably poor that, from mere want, they are frequently reduced, or, at least, think themselves reduced, to the necessity sometimes of directly destroying, and sometimes of abandoning their infants, their old people, and those afflicted with lingering diseases, to perish with hunger, or to be devoured by wild beasts. Among civilised and thriving nations, on the contrary, though a great number of people do not labour at all, many of whom consume the produce of ten times, frequently of a hundred times more labour than the greater part of those who work; yet the produce of the whole labour of the society is so great that all are often abundantly supplied, and a workman, even of the lowest and poorest order, if he is frugal and industrious, may enjoy a greater share of the necessaries and conveniences of life than it is possible for any savage to acquire. (Introduction).”

This naturally gives rise to the question, what causes some labor to be more productive than other labor? Smith answers that it is the division of labor. It would be difficult to exaggerate the importance of this concept, which has application in many different fields. It is the idea that instead of a single individual making an entire complex product, the process of production is divided up between a number of people who each make a particular portion of it. Smith argues that this specialization is the main factor in productivity. He gives a striking example he has personally witnessed.

“To take an example, therefore, from a very trifling manufacture; but one in which the division of labour has been very often taken notice of, the trade of the pin-maker; a workman not educated to this business (which the division of labour has rendered a distinct trade), nor acquainted with the use of the machinery employed in it (to the invention of which the same division of labour has probably given occasion), could scarce, perhaps, with his utmost industry, make one pin in a day, and certainly could not make twenty. But in the way in which this business is now carried on, not only the whole work is a peculiar trade, but it is divided into a number of branches, of which the greater part are likewise peculiar trades. One man draws out the wire, another straights it, a third cuts it, a fourth points it, a fifth grinds it at the top for receiving the head; to make the head requires two or three distinct operations; to put it on is a peculiar business, to whiten the pins is another; it is even a trade by itself to put them into the paper; and the important business of making a pin is, in this manner, divided into about eighteen distinct operations, which, in some manufactories, are all performed by distinct hands, though in others the same man will sometimes perform two or three of them. I have seen a small manufactory of this kind where ten men only were employed, and where some of them consequently performed two or three distinct operations. But though they were very poor, and therefore but indifferently accommodated with the necessary machinery, they could, when they exerted themselves, make among them about twelve pounds of pins in a day. There are in a pound upwards of four thousand pins of a middling size. Those ten persons, therefore, could make among them upwards of forty-eight thousand pins in a day. Each person, therefore, making a tenth part of forty-eight thousand pins, might be considered as making four thousand eight hundred pins in a day. But if they had all wrought separately and independently, and without any of them having been educated to this peculiar business, they certainly could not each of them have made twenty, perhaps not one pin in a day; that is, certainly, not the two hundred and fortieth, perhaps not the four thousand eight hundredth part of what they are at present capable of performing, in consequence of a proper division and combination of their different operations.”

(In the following century Darwin will make brilliant use of this concept to explain evolution, especially the evolution of the sexes.) This higher productivity results from a number of factors: specialization improves the dexterity of the worker, saves time, and, perhaps especially, leads the specialized workmen to invent labor-saving machines and methods. When the division of labor is employed widely, it produces a vastly higher standard of living throughout the whole society.

“It is the great multiplication of the productions of all the different arts, in consequence of the division of labour, which occasions, in a well-governed society, that universal opulence which extends itself to the lowest ranks of the people.”

If we examine even the simplest product, we will find that an astonishing number of people have contributed to its making.

“Observe the accommodation of the most common artificer or day-labourer in a civilised and thriving country, and you will perceive that the number of people of whose industry a part, though but a small part, has been employed in procuring him this accommodation, exceeds all computation. The woollen coat, for example, which covers the day-labourer, as coarse and rough as it may appear, is the produce of the joint labour of a great multitude of workmen. The shepherd, the sorter of the wool, the wool-comber or carder, the dyer, the scribbler, the spinner, the weaver, the fuller, the dresser, with many others, must all join their different arts in order to complete even this homely production. How many merchants and carriers, besides, must have been employed in transporting the materials from some of those workmen to others who often live in a very distant part of the country! How much commerce and navigation in particular, how many ship-builders, sailors, sail-makers, rope-makers, must have been employed in order to bring together the different drugs made use of by the dyer, which often come from the remotest corners of the world! What a variety of labour, too, is necessary in order to produce the tools of the meanest of those workmen! To say nothing of such complicated machines as the ship of the sailor, the mill of the fuller, or even the loom of the weaver, let us consider only what a variety of labour is requisite in order to form that very simple machine, the shears with which the shepherd clips the wool. The miner, the builder of the furnace for smelting the ore, the seller of the timber, the burner of the charcoal to be made use of in the smelting-house, the brickmaker, the brick-layer, the workmen who attend the furnace, the mill-wright, the forger, the smith, must all of them join their different arts in order to produce them. Were we to examine, in the same manner, all the different parts of his dress and household furniture, the coarse linen shirt which he wears next his skin, the shoes which cover his feet, the bed which he lies on, and all the different parts which compose it, the kitchen-grate at which he prepares his victuals, the coals which he makes use of for that purpose, dug from the bowels of the earth, and brought to him perhaps by a long sea and a long land carriage, all the other utensils of his kitchen, all the furniture of his table, the knives and forks, the earthen or pewter plates upon which he serves up and divides his victuals, the different hands employed in preparing his bread and his beer, the glass window which lets in the heat and the light, and keeps out the wind and the rain, with all the knowledge and art requisite for preparing that beautiful and happy invention, without which these northern parts of the world could scarce have afforded a very comfortable habitation, together with the tools of all the different workmen employed in producing those different conveniences; if we examine, I say, all these things, and consider what a variety of labour is employed about each of them, we shall be sensible that, without the assistance and co-operation of many thousands, the very meanest person in a civilised country could not be provided, even according to what we very falsely imagine the easy and simple manner in which he is commonly accommodated. Compared, indeed, with the more extravagant luxury of the great, his accommodation must no doubt appear extremely simple and easy; and yet it may be true, perhaps, that the accommodation of a European prince does not always so much exceed that of an industrious and frugal peasant as the accommodation of the latter exceeds that of many an African king, the absolute master of the lives and liberties of ten thousand naked savages.”

If this is so, then the next question must be, what gives rise to the division of labor? Smith’s answer to this is memorable. It is not out of any large or coordinated design, and especially not because they were commanded to by government, but simply out of their individual desire to earn a living: out of their self-interest. (Smith’s concept of “self-interest” is far broader, however, than might be assumed by someone who has not read him: it can include sympathy and concern for the well-being of our neighbor, for example.)

“This division of labour, from which so many advantages are derived, is not originally the effect of any human wisdom, which foresees and intends that general opulence to which it gives occasion. It is the necessary, though very slow and gradual consequence of a certain propensity in human nature which has in view no such extensive utility; the propensity to truck, barter and exchange one thing for another.”

This is something distinctive of human beings: no animal does it.

“It is common to all men, and to be found in no other race of animals, which seem to know neither this nor any other species of contracts. …Nobody ever saw a dog make a fair and deliberate exchange of one bone for another with another dog. Nobody ever saw one animal by its gestures and natural cries signify to another, this is mine, that yours; I am willing to give this for that. When an animal wants to obtain something either of a man or of another animal, it has no other means of persuasion but to gain the favour of those whose service it requires. A puppy fawns upon its dam, and a spaniel endeavours by a thousand attractions to engage the attention of its master who is at dinner, when it wants to be fed by him. Man sometimes uses the same arts with his brethren, and when he has no other means of engaging them to act according to his inclinations, endeavours by every servile and fawning attention to obtain their good will. He has not time, however, to do this upon every occasion. In civilised society he stands at all times in need of the cooperation and assistance of great multitudes, while his whole life is scarce sufficient to gain the friendship of a few persons. In almost every other race of animals each individual, when it is grown up to maturity, is entirely independent, and in its natural state has occasion for the assistance of no other living creature.”

The secret of the success of the system of exchanges we call the market is that it does not depend on people’s generosity or kindness, but requires nothing more than an appeal to their self-interest.

“… man has almost constant occasion for the help of his brethren, and it is in vain for him to expect it from their benevolence only. He will be more likely to prevail if he can interest their self-love in his favour, and show them that it is for their own advantage to do for him what he requires of them. Whoever offers to another a bargain of any kind, proposes to do this. Give me that which I want, and you shall have this which you want, is the meaning of every such offer; and it is in this manner that we obtain from one another the far greater part of those good offices which we stand in need of. It is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own interest. We address ourselves, not to their humanity but to their self-love, and never talk to them of our own necessities but of their advantages. Nobody but a beggar chooses to depend chiefly upon the benevolence of his fellow-citizens. Even a beggar does not depend upon it entirely. The charity of well-disposed people, indeed, supplies him with the whole fund of his subsistence. But though this principle ultimately provides him with all the necessaries of life which he has occasion for, it neither does nor can provide him with them as he has occasion for them. The greater part of his occasional wants are supplied in the same manner as those of other people, by treaty, by barter, and by purchase. With the money which one man gives him he purchases food. The old clothes which another bestows upon him he exchanges for other old clothes which suit him better, or for lodging, or for food, or for money, with which he can buy either food, clothes, or lodging, as he has occasion.”

Of course, this does not mean that the market positively excludes kindness and generosity. They always remain welcome possibilities. Only it does not demand them as a prerequisite for success.

“As it is by treaty, by barter, and by purchase that we obtain from one another the greater part of those mutual good offices which we stand in need of, so it is this same trucking disposition which originally gives occasion to the division of labour. In a tribe of hunters or shepherds a particular person makes bows and arrows, for example, with more readiness and dexterity than any other. He frequently exchanges them for cattle or for venison with his companions; and he finds at last that he can in this manner get more cattle and venison than if he himself went to the field to catch them. From a regard to his own interest, therefore, the making of bows and arrows grows to be his chief business, and he becomes a sort of armourer. Another excels in making the frames and covers of their little huts or movable houses. He is accustomed to be of use in this way to his neighbours, who reward him in the same manner with cattle and with venison, till at last he finds it his interest to dedicate himself entirely to this employment, and to become a sort of house-carpenter. In the same manner a third becomes a smith or a brazier, a fourth a tanner or dresser of hides or skins, the principal part of the nothing of savages. And thus the certainty of being able to exchange all that surplus part of the produce of his own labour, which is over and above his own consumption, for such parts of the produce of other men’s labour as he may have occasion for, encourages every man to apply himself to a particular occupation, and to cultivate and bring to perfection whatever talent or genius he may possess for that particular species of business.”

The Wealth of Nations is filled with perceptive comments on human nature. Here is one of them:

“The difference of natural talents in different men is, in reality, much less than we are aware of; and the very different genius which appears to distinguish men of different professions, when grown up to maturity, is not upon many occasions so much the cause as the effect of the division of labour. The difference between the most dissimilar characters, between a philosopher and a common street porter, for example, seems to arise not so much from nature as from habit, custom, and education. When they came into the world, and for the first six or eight years of their existence, they were perhaps very much alike, and neither their parents nor playfellows could perceive any remarkable difference. About that age, or soon after, they come to be employed in very different occupations. The difference of talents comes then to be taken notice of, and widens by degrees, till at last the vanity of the philosopher is willing to acknowledge scarce any resemblance. But without the disposition to truck, barter, and exchange, every man must have procured to himself every necessary and conveniency of life which he wanted. All must have had the same duties to perform, and the same work to do, and there could have been no such difference of employment as could alone give occasion to any great difference of talents.

As it is this disposition which forms that difference of talents, so remarkable among men of different professions, so it is this same disposition which renders that difference useful. Many tribes of animals acknowledged to be all of the same species derive from nature a much more remarkable distinction of genius, than what, antecedent to custom and education, appears to take place among men. By nature a philosopher is not in genius and disposition half so different from a street porter, as a mastiff is from a greyhound, or a greyhound from a spaniel, or this last from a shepherd’s dog. Those different tribes of animals, however, though all of the same species, are of scarce any use to one another. The strength of the mastiff is not, in the least, supported either by the swiftness of the greyhound, or by the sagacity of the spaniel, or by the docility of the shepherd’s dog. The effects of those different geniuses and talents, for want of the power or disposition to barter and exchange, cannot be brought into a common stock, and do not in the least contribute to the better accommodation and conveniency of the species. Each animal is still obliged to support and defend itself, separately and independently, and derives no sort of advantage from that variety of talents with which nature has distinguished its fellows. Among men, on the contrary, the most dissimilar geniuses are of use to one another; the different produces of their respective talents, by the general disposition to truck, barter, and exchange, being brought, as it were, into a common stock, where every man may purchase whatever part of the produce of other men’s talents he has occasion for.”

Adam Smith’s greatest single discovery is what I have termed “the principle of mutual benefit.” This is the fact that exchanges take place for one reason only: both parties consider that they benefit. It can never happen that, in the absence of force and fraud, only one party to an exchange can expect to benefit. If that were the case the exchange would not take place. It is true that the benefit may not be equal, but a lesser benefit is still a benefit, not a loss. He deals with this mainly in his discussion of the “balance of trade,” which occupies the whole of Book 4.

“Nothing, however, can be more absurd than this whole doctrine of the balance of trade, upon which, not only these restraints, but almost all the other regulations of commerce are founded. When two places trade with one another, this doctrine supposes that, if the balance be even, neither of them either loses or gains; but if it leans in any degree to one side, that one of them loses and the other gains in proportion to its declension from the exact equilibrium. Both suppositions are false. A trade which is forced by means of bounties and monopolies may be and commonly is disadvantageous to the country in whose favour it is meant to be established, as I shall endeavour to show hereafter. But that trade which, without force or constraint, is naturally and regularly carried on between any two places is always advantageous, though not always equally so, to both.”

Since every exchange benefits both parties, even if not equally, those benefits become available for further exchanges. The result is that, without anyone intending to benefit society, nonetheless in a system of free exchanges the entire society benefits, as “by an invisible hand.”

“As every individual, therefore, endeavours as much as he can both to employ his capital in the support of domestic industry, and so to direct that industry that its produce may be of the greatest value; every individual necessarily labours to render the annual value of society as great as he can. He generally, indeed, neither intends to promote the public interest, nor knows how much he is promoting it. By preferring the support of domestic to that of foreign industry, he intends only his own security; and by directing that industry in such a manner as its produce may be of the greatest value, he intends only his own gain, and he is in this, as in many other cases, led by an invisible hand to promote an end which was no part of his intention. Nor is it always the worse for the society that it was no part of it. By pursuing his own interest he frequently promotes that of society more effectually than when he really intends to promote it. I have never known much good done by those who affected to trade for the public good. It is an affectation, indeed, not very common among merchants, and very few words need be employed in dissuading them from it.”

He concludes that all systems of government intervention in the market are self-defeating.

“It is thus that every system which endeavours, either by extraordinary encouragements to draw towards a particular species of industry a greater share of the capital of the society than what would naturally go to it, or, by extraordinary restraints, force from a particular species of industry some share of the capital which would otherwise be employed in it, is in reality subversive of the great purpose which it means to promote. It retards, instead of accelerating, the progress of the society towards real wealth and greatness; and diminishes, instead of increasing, the real value of the annual produce of its land and labour.”

At the end of Book 4 he gives what has become the classic statement of the role of government in a free society:

“All systems either of preference or of restraint, therefore, being thus completely taken away, the obvious and simple system of natural liberty establishes itself of its own accord. Every man, as long as he does not violate the laws of justice, is left perfectly free to pursue his own interest his own way, and to bring both his industry and capital into competition with those of any other man, or order of men. The sovereign is completely discharged from a duty, in the attempting to perform which he must always be exposed to innumerable delusions, and for the proper performance of which no human wisdom or knowledge could ever be sufficient; the duty of superintending the industry of private people, and of directing it towards the employments most suitable to the interest of the society. According to the system of natural liberty, the sovereign has only three duties to attend to; three duties of great importance, indeed, but plain and intelligible to common understandings: first, the duty of protecting the society from violence and invasion of other independent societies; secondly, the duty of protecting, as far as possible, every member of the society from the injustice or oppression of every other member of it, or the duty of establishing an exact administration of justice; and, thirdly, the duty of erecting and maintaining certain public works and certain public institutions which it can never be for the interest of any individual, or small number of individuals, to erect and maintain; because the profit could never repay the expense to any individual or small number of individuals, though it may frequently do much more than repay it to a great society.”