Passive Capital Goods.—Labor spends itself on materials, and these, in their rawest state, are furnished by nature herself. They "ripen" as the work goes on. Every touch that is put on them imparts to them more of the utility which is the essence of wealth. They are technically "goods," or concrete forms of wealth, from the moment when they begin to acquire this utility, though for a time they are in an unfinished state. The function of materials, raw or partly finished, in the physical operation of industry is a passive one, since they receive utility and do not impart it. The iron is passive under the blows of the blacksmith's hammer; leather is passive under the action of the shoemaker's sewing machine; a log is passive under the action of the lumberman's saw, etc. The materials which are thus receiving utilities under the producers' manipulations constitute a distinct variety of capital goods, while the implements which help to impart the utilities constitute another variety, and both kinds are present in all stages of industrial evolution. Savages use raw materials and tools for fashioning them.

Active Capital Goods.—The hammer which fashions the iron, the awl which pierces the leather, and the saw that cuts the log into boards have an active function to perform. They do not receive utilities, but impart them. They manipulate other things and are not themselves manipulated; and except as unavoidable wear and tear injure or destroy them, they are not themselves at all changed by the processes in which they take part. They are the workman's active assistants in the attacks that he makes on the resisting elements of nature. Passive instruments, then, and active ones—things which receive utility, as industry goes on, and those which impart utility—constitute the two generic kinds of capital goods. What is commonly called "circulating capital" is a permanent stock of passive capital goods; and, in like manner, what is usually known as "fixed capital" is such a stock of capital goods of the active kind. The materials and the unfinished goods that are scattered through a modern mill and receiving utility are what the manufacturer would at this moment identify if he were asked to point out the things in which he has circulating capital invested; while the mill, the machinery, the land, etc., which are imparting utility, are what he can point to as now constituting his fixed capital. At a later time there will be other goods of both kinds in his possession, and these will at that time embody the two kinds of capital. While a primitive man would have little occasion to use the term capital goods, he would possess both varieties of the goods which the term denotes.

Varieties of Active Capital Goods.—Mere hand tools act as armatures attached to the person of the worker, and they enable him effectively to attack resisting substances. The hammer fortifies the blacksmith's hand against the injuries it would suffer if he delivered blows with his fist, and it multiplies the efficiency of the blows. Machines, however, substitute themselves for the person of the worker and carry the tool through its movements. A steam hammer, so called, is an engine that gets power from a boiler and wields an armature, which is the real hammer, much as a smith would do it, though with far greater force and effect. Machines do rapidly and accurately what a manual laborer would, without them, have to do slowly and imperfectly, by carrying the armature in his own hand and moving it by his own muscular strength. Tools and machines impart "form utility" to materials. Vehicles which carry goods impart "place utility" to them by putting them where they are more useful than they would be elsewhere. Buildings protect goods and workers alike, and enable the operation of transforming them to go on successfully. They also make it possible to store goods at a time when they are not needed and take them out for use when they are needed. In doing this, buildings help to impart "time utility" to the merchandise that is put into them by keeping them intact till the time comes when they will be useful. Tools, machines, reservoirs of water, canals, roadways, buildings, and even land itself are active capital goods, and are, for that reason, component elements of that part of the permanent productive fund which is known as fixed capital. They aid workers in their efforts to bring materials into usable shapes, and this is as true of the hole in the earth in which a savage stores provisions as it is of a fireproof warehouse in a modern city.

Materials which are at first Passive and later pass into the Active State.—The hammer itself has to be made out of raw material, and, while it is in the making, the material that enters into it is as passive as anything else. While the ore is smelting and while the steel is forging, the future hammer is in a preliminary stage of its existence and is discharging a passive function. When it is completely finished, its period of activity begins, and from this time on it helps to manipulate other things. The materials which enter into consumers' goods go through no such transition. The leather remains passive till, in the form of a pair of shoes, it clothes its user's feet; and at this point it ceases to be a capital good at all. The steel of the hammer is first a passive good and later an active one.

The Use of Capital Goods Universal.—There is no doubt that capital goods are used in the most primitive industry. Implements existed in times too remote for tracing; and even if they had not been used, raw material would have been indispensable. People living in an economic stage so ultraprimitive as to use no mediate goods whatever could sustain life only by plucking wild fruit or gathering fish or other food stuff by hand, and so long as they could do this their industry might conceivably consist in getting consumers' goods by labor only. The rudest pick, shovel, or ax and the simplest hunting implement are early types of what, in "capitalistic production," is represented by mills with their intricate machines, ships, railroads, and the like. Primitive industry has capital but is not highly capitalistic, since labor and a little capital in simple forms are all that it requires. These primitive capital goods are still essential. Capital.—It might seem that we have already described the nature of capital, but we have not. We have described the kinds of goods of which it consists. A sharp distinction is to be drawn between two ways of treating capital goods, and only one of these ways affords a treatment of capital properly so called. To attain that concept we must think of goods as in some way constituting a stock which abides as long as the business continues. And yet the things themselves separately considered do not abide. Goods are perishable things; no one lasts forever, and some last only a very short time. Raw materials best serve their purpose when they are quickly transformed into usable goods and taken out of the category of productive instruments. Tools may last longer, but they ultimately wear out and have to be replaced.

How Capital Goods Originate and Perish.—If you watch a particular mediate good of the passive kind, say wood in a growing tree, you see it beginning its career as an absolutely raw material, and then under the hand of labor, aided by tools, receiving utility till it takes its final form in some article for a consumer's use, say a dining table. Little labor is applied to it during the first stage of the process, that in which the tree is guarded and allowed to grow to a size that fits it for conversion into lumber; but the cutting, carrying, sawing, and fashioning are done by labor and tools, and under their manipulations the wood "ripens" in the economic sense—that is, it becomes quite fit for consumption. It is ready to serve a consumer as a table, and, when this service begins, the wood that up to this point has been a passive capital good, constantly receiving utilities, will cease to be a capital good at all and begin slowly to wear out in the service of its owner.[1]

The Transition of Goods from one State to Another.—The beginning of its service in the purchaser's dining room takes the wood of the table out of the category of producers' goods; but there is some raw material that is never destined to emerge from that category and enter another. Its last state of existence as a good will be that in which it is embodied, not in an article for consumers' use, but in an active tool. Our tree might have furnished some of its wood for a wheelbarrow, and if so, that part of it would have been a capital good until it ceased to be an economic good at all. If we watch it as it grows toward its economic maturity, we see it sawed, planed, and otherwise fashioned under the laborer's hand, and maintaining during all this time its passive attitude, just as does the wood that is destined to constitute a table. When the wheelbarrow is completed, it does not, like the table, begin to minister directly to consumers' wants, but begins actively to aid some laborer in a further productive operation. It carries mortar to the wall of an unfinished building and is thus taken out of the list of passive goods—recipients of utility—and is ranged with other active tools which impart utility. The same thing is true of the steel that is destined to compose the head of a modern woodman's ax or the stone that is in process of fashioning into the rude hatchet of some primitive savage. As raw or partly wrought material it is a passive capital good; later it becomes an instrument of the active sort.

The Ultimate Perishability of all Kinds of Goods artificially Made.—In the end both kinds of material will cease to be capital goods. The raw stuff that goes into food, clothing, furnishings, or the like will become consumers' goods, while the raw material of tools will, in its final form, the tools themselves, have one more lease of life as capital goods. In the end, however, as wheelbarrows, axes, hatchets, and the whole long list of active implements are used up, they cease to be capital goods because they cease to be economic goods at all. They are as truly ordained to be ultimately used up as are food and clothing, and this is true of the most durable things that are artificially made. Walls, roadways, bridges, and buildings slowly deteriorate till the time comes when for productive purposes their room is worth more than their company.

Why the Perishability of Capital Goods does not put Capital out of Existence.—Perishability is the most striking trait of capital goods. Each particular one comes and goes, but there is always a stock of them on hand; for when one is on the point of going, another is ready to take its place and keep up the succession. New tools replace old tools; new materials replace those that are finished and withdrawn, and so it comes about that a stock of such things abides forever. Not one of the individual instruments is permanent, for each one only does its part in keeping up an endless procession. It is the procession that is always there—a moving series of individual goods, not one of which has more than a transient economic career. Each one helps to keep up the supply of permanent capital just as each man, taking his turn in an endless succession of laborers, serves during his brief life to keep up the permanent force of laboring humanity. Men come and go, but "labor"—a mass of working humanity—abides; and so capital goods come and go, but a stock of them abides, kept up by perpetual replacement. We may trace the career of any single instrument from a beginning to an end; but we may, on the other hand, cease to look at any instruments that we single out and identify and look rather at the procession of them; and if we do this, we look at a body which never wastes away, though the things that compose it are, separately considered, forever wasting. There are many kinds of transient things which, by the same process of renewal, constitute permanent entities. Composing a human body at this moment are certain tissues that can be separately identified; and if we watch any one of them, we shall see it going in a short time to destruction. Yet the body lasts while life continues. Indeed, the evidence of the life itself is the discarding and replacing of the tissues. A living body is a durable thing, though the particular tissues that at any one time compose it are not so. In a like way drops of water make a river, and this is a permanent thing, however rapidly its composition changes. The waterfall that drives the machinery of a mill is permanent, though no particular particle of water remains in it for more than a moment. Society is permanent, though the men who compose it are short-lived. In an exactly similar way a body of capital goods is maintained as a perpetual instrumentality of production. This is capital properly so called. It is, as it were, a quasi-living body, perpetuated by the constant replacement of the component parts, which are destroyed as its normal activities go on.

The Difference between Capital Goods and Capital Summarized.—The distinction between capital goods, on the one hand, and capital, on the other, is, then, like that between particular tissues and a living body, or like that between particular particles of water in the river and the river that flows forever. We can single out and watch certain drops of the water as they flow from a spring, and we can trace them through their brief careers, and say truly that the river is composed of fickle and transient stuff; but we cannot say that the river is transient. That is perpetuated by the renewing of the supply of water as the original drops disappear. We can mentally watch a particular man, as he enters the social force of workmen, labors for a time, and drops out of the line, and can see that society is composed of transient material; but society itself is an abiding thing. So we can study a particular bit of ore or wool or leather or a particular hammer or spindle or sewing machine, and in those cases we shall be studying capital goods and finding how perishable they are; but we shall also see that a stock of them always abides as the capital of economic society. We can cease to look at individual things and study the permanent fund of productive wealth, which is made up of goods like ore, wool, leather, hammers, spindles, and sewing machines. The identity of the things which make up this stock is forever changing. The same list of things we shall never find in the stock on any two dates, but a supply of similar things forever abides. Capital is this permanent fund of productive goods, the identity of whose component elements is forever changing. Capital goods are the shifting component parts of this permanent aggregate. They are the particular instruments that, each during its own brief economic lifetime, take their places in the endless procession of things which in its entirety is an abiding productive agent—the co-worker of labor and its perpetual assistant in creating consumers' wealth.

The Business Man's View of Capital.—It is as such an abiding entity that a business man regards capital. He describes it nearly always as a sum of money. Thus the capital of a manufacturer is "a million dollars" because a stock of instruments worth that amount is kept intact in his possession. It is not allowed to waste away, however much the constituent parts of it may shift. The waste and renewal which business entails leave the equivalent of the million dollars always on hand, though never in the literal shape of money. A stock of shifting goods always worth a million dollars is, by a figure of speech, described as a million dollars "invested in the goods."[2]

The Chief Attribute of Capital.—A chief attribute of capital, properly so called, is permanence. If a man's productive fund does not last, he is impoverished. The farmer keeps on hand a more or less constant supply of the implements he has to use. He takes a part of the proceeds of the sale of his crops, puts it into the shape of implements and materials, and in this way keeps an amount of them on hand as the auxiliary capital of agriculture. Particular goods are not constant, but the sum of money or quantum of wealth "invested" in the moving procession of them is so. At any one instant the capital is composed of particular instruments which can be sought out and identified, but at no two instants are the goods the same.

The Reasons for describing Capital as a Sum of Money.—This fact explains the general practice of describing capital in terms of money. The manufacturer just referred to will speak of his capital as "a million dollars" and consider that sum as a "permanent investment" because he knows that while the goods that now represent that value will soon pass from him, the "dollars"—that is, the value which is equivalent to the dollars—will abide. There is, moreover, no failure on his part to discriminate between his capital and literal money, for he knows in what his productive fund consists, and is fully aware that only the minutest part of it is in the shape of actual currency.

Instruments of production compose the fund, but the dollars serve to describe it. They indicate the amount and the abiding quality of it, since they describe what he has invested or embodied in the shifting things and can, by a fair sale, get out of them.

Why Abstract Terms are used in popularly describing Capital.—In certain connections money is, in unintelligent thinking, confused with real capital in ways that we should guard against. In avoiding such errors we need to be even more careful that we do not miss the truth that is at the basis of the common mode of describing capital. A permanent fund that is spoken of as a million dollars invested in a business does not suggest to any one a literal pile of a million silver or paper dollars or of a hundred thousand gold eagles. It suggests what is actually in the business, a procession of things each of which comes into the man's possession and then leaves him, and helps him to keep the constant stock of goods that at any time is a potential million of dollars. A permanent body of any kind, if it is made up of shifting tissues, is commonly described by the use of an abstract term. A waterfall, made as it is of rapidly changing drops of water, is spoken of as a "water power," since the power is the abiding thing. An endless series of living human beings is described as "humanity," since that remains through all personal changes. An endless series of workingmen is described as "labor," and we study the "wages of labor," the "relations of labor to capital," etc., because these are permanent relations. Men come and go, but labor continues and is the source of a permanent income. It is actually the fact that in speaking of the "labor problem" or the "relation of capital and labor" we usually think of "labor in the abstract," as we might term it; but this is very far from implying that we consider a series of generations of actual workingmen as an abstraction. We may, using terms in a like way, speak of the problem of interest as concerning "capital in the abstract"; but this is far from meaning that we consider an endless series of material instruments of industry an abstraction. We describe these real things by the use of an abstract term, just as we describe a thousand other realities. A "fund," a "value," a "permanent quantum of wealth," is capital; but with the abstract notion the mind always merges the thought of the concrete entity. It is the tools of industry that, in their endless march, come into and go out of the industrial field that we think of even when we use the abstract term. This term, however, saves us from the danger of thinking merely of particular tools that we can identify and trace to their final destruction when we form the concept of capital.

The Importance of discriminating between the Concept of Capital Goods and that of Capital.—Very great is the importance of keeping sharply distinct the two concepts of productive wealth of which one is described by the term capital goods and the other by the term capital. In the one case we think of a particular thing which we identify, keep in mind, and watch as it goes through its transformations, does its final work, and perishes. The brilliant studies of Professor BÖhm-Bawerk are based on the idea that such a tracing of the biography of a particular instrument is the true way to solve the problem of interest. Yet the very term interest itself suggests the existence of what we have defined as permanent capital—an abiding fund or sum of wealth that every year yields as an income a certain percentage of itself. The "hundred dollars" yields five dollars; that is, the fund yields a twentieth of the amount which, amid all the changes of its constituent parts, it continues to embody. It is true, indeed, that a study of all capital goods which have existed or will exist, with due attention to their relations to each other, would reveal the fact that they maintain such an endless procession as has been here described, and it would thus bring before the mind such a concept of capital as the business man has and describes by the monetary form of expression. By making a synthetic study of capital goods in general, and not separate studies of particular goods as they come and go, we can obtain a grand resultant of the action of all of them, which is nothing less than permanent capital doing its continuous work. Such a comprehensive study of capital goods, if it is carried far enough, becomes a study of the abiding entity, capital. Allowing ourselves, however, to put the abiding entity out of sight and merely to trace the origin, growth, and productive action of separate instruments of production would be disastrous. The undying body in which the particular things are tissues absolutely needs to come into view. The very mention of a problem of interest—of the percentage of itself that a fund of a given amount can annually earn—puts before us at once the permanent entity, capital, and the problems relating to it.[3] Labor as a Permanent Entity.—The term labor is sometimes used to describe a permanent aggregation of laborers no one of whom lives and works through more than a brief period. Labor is thus analogous to capital and laborers to capital goods. A permanent working force is composed of perishable beings as a permanent producing fund is composed of perishable goods. Both are commonly described by the use of abstract terms, but both are in reality concrete things; and actually to reduce either to a mere abstraction would be to put a material entity out of existence. We instinctively speak of a value—a given number of dollars—in describing a man's capital, but it is dollars "invested in" productive instruments; and we instinctively speak of labor when we mean an abiding force of workingmen. Neither capital nor labor is like an immaterial soul that can live apart from its body. Each consists of a permanent body with a shifting composition. A permanent sum, on the one hand, a permanent amount of working energy, on the other, are always present, but they are in goods and men respectively. Each may well be described by the use of an abstract term, and in practical life it commonly is so; but it is a concrete reality.

Peculiarity of Land as a Capital Good.—One reservation needs to be made when we call capital goods perishable. If we include land under this term, we must make it an exception to the rule of destructibility. It is the only thing that does not go out of existence in the using. It is not a produced good at all and does not stand, like other goods, in an intermediate position between labor and the gratification that labor is intended to produce. Work did not create it and using will not end it. It will be called, in our study, a capital good, for it is a form of wealth which produces other wealth. It enters into the permanent productive fund that society is using.

Differences between Land and Other Capital Goods Important in Economic Dynamics.—It is in a later part of the study which deals with economic changes—the part which we shall call Economic Dynamics—that the differences between land and artificially made goods become prominent, and these differences will receive due emphasis in their proper place. In studying the law which would govern economic society if no essential economic changes were taking place,—in reducing society, as it were, to a static state,—we find that there is a certain set of characteristics which land shares with those capital goods which are the products of human industry. In static studies it is best to group the productive instruments which men make with the one unmade good which nature furnishes and to recognize that together they embody the permanent fund of productive wealth.[4]

Mobility an Attribute of Capital.—Even in a static society capital would be permanent, while particular capital goods would be perishable. In dynamic studies another quality of capital, as distinguished from capital goods, comes into the foreground, namely, mobility. It is the power to move without loss from one industry to another. Goods cannot be thus moved with any freedom. A loom cannot be taken out of a woolen mill and made to do duty in a carpenter's shop, nor can a circular saw be made available in weaving. When the loom wears out and needs replacement, it is in the owner's power to procure either another loom or a circular saw, and if he chooses the latter alternative, he causes capital to move into the woodworking business. A whaling ship would not be useful as a cotton mill; but much capital that was once invested in the whale fishery of New England has since found its way into manufacturing. The transfer can often be made without waste. If the earnings of an instrument have sufficed to replace it with another that is like it, they may suffice for producing an instrument that is unlike it. Waste, if it occurs, results from a failure of the original instrument to earn the fund for replacement. Capital which thus abides but passes from one employment to another is a body the identity and the character of whose component parts change. The transfer of capital from one industry to another is a dynamic phenomenon which is later to be considered. What is here important is the fact that it is in the main accomplished without entailing transfers of capital goods. An instrument wears itself out in one industry, and instead of being succeeded by a like instrument in the same industry, it is succeeded by one of a different kind which is used in a different branch of production. Goods have not moved from one branch to another, but capital has done so.

How Capital itself may be Destroyed.—When we speak of capital as permanent, we mean that using does not destroy it as it destroys the tissues of which it is composed. Fires, earthquakes, and business disasters put parts of it out of existence and affect the volume of the fund as a whole; but production itself leaves it intact. It is this very production which destroys capital goods and makes it necessary to replace them.