# Principles of Political Economy (J.S. Mill, 1871), vol. 2/Book V, Chapter IV

This is the seventh edition of the Principles, which was first published 1848.
CHAPTER IV.
OF TAXES ON COMMODITIES.
§ 1.By taxes on commodities are commonly meant, those which are levied either on the producers, or on the carriers or dealers who intervene between them and the final purchasers for consumption. Taxes imposed directly on the consumers of particular commodities, such as a house-tax, or the tax in this country on horses and carriages, might be called taxes on commodities, but are not; the phrase being, by custom, confined to indirect taxes those which are advanced by one person, to be, as is expected and intended, reimbursed by another. Taxes on commodities are either on production within the country, or on importation into it, or on conveyance or sale within it; and are classed respectively as excise, customs, or tolls and transit duties. To whichever class they belong, and at whatever stage in the progress of the community they may be imposed, they are equivalent to an increase of the cost of production; using that term in its most enlarged sense, which includes the cost of transport and distribution, or, in common phrase, of bringing the commodity to market.
When the cost of production is increased artificially by a tax, the effect is the same as when it is increased by natural causes. If only one or a few commodities are affected, their value and price rise, so as to compensate the producer or dealer for the peculiar burthen; but if there were a tax on all commodities, exactly proportioned to their value, no such compensation would be obtained: there would neither be a general rise of values, which is an absurdity, nor of prices, which depend on causes entirely different. There would, however, as Mr. M'Culloch has pointed out, be a disturbance ​of values, some falling, others rising, owing to a circumstance, the effect of which on values and prices we formerly discussed; the different durability of the capital employed in different occupations. The gross produce of industry consists of two parts; one portion serving to replace the capital consumed, while the other portion is profit. Now equal capitals in two branches of production must have equal expectations of profit; but if a greater portion of the one than of the other is fixed capital, or if that fixed capital is more durable, there will be a less consumption of capital in the year, and less will be required to replace it, so that the profit, if absolutely the same, will form a greater proportion of the annual returns. To derive from a capital of 1000l. a profit of 100l., the one producer may have to sell produce to the value of 1100l., the other only to the value of 500l. If on these two branches of industry a tax be imposed of five per cent ad valorem, the last will be charged only with 25l., the first with 55l.; leaving to the one 75l. profit, to the other only 40l. To equalize, therefore, their expectation of profit, the one commodity must rise in price, or the other must fall, or both: commodities made chiefly by immediate labour must rise in value, as compared with those which are chiefly made by machinery. It is unnecessary to prosecute this branch of the inquiry any further.
§ 2.A tax on any one commodity, whether laid on its production, its importation, its carriage from place to place, or its sale, and whether the tax be a fixed sum of money for a given quantity of the commodity, or an ad valorem duty, will, as a general rule, raise the value and price of the commodity by at least the amount of the tax. There are few cases in which it does not raise them by more than that amount In the first place, there are few taxes on production on account of which it is not found or deemed necessary to impose restrictive regulations on the manufacturers or dealers, in order to check evasions of the tax. These regu​lations are always sources of trouble and annoyance, and generally of expense, for all of which, being peculiar disadvantages, the producers or dealers must have compensation in the price of their commodity. These restrictions also frequently interfere with the processes of manufacture, requiring the producer to carry on his operations in the way most convenient to the revenue, though not the cheapest, or most efficient for purposes of production. Any regulations whatever, enforced by law, make it difficult for the producer to adopt new and improved processes. Further, the necessity of advancing the tax obliges producers and dealers to carry on their business with larger capitals than would otherwise be necessary, on the whole of which they must receive the ordinary rate of profit, though a part only is employed in defraying the real expenses of production or importation. The price of the article must be such as to afford a profit on more than its natural value, instead of a profit on only its natural value. A part of the capital of the country, in short, is not employed in production, but in advances to the state, repaid in the price of goods j and the consumers must give an indemnity to the sellers, equal to the profit which they could have made on the same capital if really employed in production. Neither ought it to be forgotten, that whatever renders a larger capital necessary in any trade or business, limits the competition in that business; and by giving something like a monopoly to a few dealers, may enable them either to keep up the price beyond what would afford the ordinary rate of profit, or to obtain the ordinary rate of profit with a less degree of exertion for improving and cheapening their commodity. ​In these several modes, taxes on commodities often cost to the consumer, through the increased price of the article, much more than they bring into the treasury of the state. There is still another consideration. The higher price necessitated by the tax, almost always checks the demand for the commodity; and since there are many improvements in production which, to make them practicable, require a certain extent of demand, such improvements are obstructed, and many of them prevented altogether. It is a well-known fact, that the branches of production in which fewest improvements are made, are those with which the revenue officer interferes; and that nothing, in general, gives a greater impulse to improvements in the production of a commodity, than taking off a tax which narrowed the market for it.
§ 3. Such are the effects of taxes on commodities, considered generally; but as there are some commodities (those composing the necessaries of the labourer) of which the values have an influence on the distribution of wealth among different classes of the community, it is requisite to trace the effects of taxes on those particular articles somewhat farther. If a tax be laid, say on corn, and the price rises in proportion to the tax, the rise of price may operate in two ways. First: it may lower the condition of the labouring classes; temporarily indeed it can scarcely fail to do so. If it diminishes their consumption of the produce of the earth, or makes them resort to a food which the soil produces more abundantly, and therefore more cheaply, it to that extent contributes to throw back agriculture upon more fertile lands or less costly processes, and to lower the value and price of corn; which therefore ultimately settles at a price, increased not by the whole amount of the tax, but by only a part of its amount. Secondly, however, it may happen that the dearness of the taxed food does not lower the habitual standard of the labourer's requirements, but that wages, on the contrary, through ​an action on population, rise, in a shorter or longer period, so as to compensate the labourers for their portion of the tax; the compensation being of course at the expense of profits. Taxes on necessaries must thus have one of two effects. Either they lower the condition of the labouring classes; or they exact from the owners of capital, in addition to the amount due to the state on their own necessaries, the amount due on those consumed by the labourers. In the last case, the tax on necessaries, like a tax on wages, is equivalent to a peculiar tax on profits; which is, like all other partial taxation, unjust, and is specially prejudicial to the increase of the national wealth.
It remains to speak of the effect on rent. Assuming (what is usually the fact,) that the consumption of food is not diminished, the same cultivation as before will be necessary to supply the wants of the community; the margin of cultivation, to use Dr. Chalmers* expression, remains where it was; and the same land or capital which, as the least productive, already regulated the value and price of the whole produce, will continue to regulate them. The effect which a tax on agricultural produce will have on rent, depends on its affecting or not affecting the difference between the return to this least productive land or capital, and the returns to other lands and capitals. Now this depends on the manner in which the tax is imposed. If it is an ad valorem tax, or what is the same thing, a fixed proportion of the produce, such as tithe for example, it evidently lowers corn-rents. For it takes more corn from the better lands than from the worse; and exactly in the degree in which they are better; land of twice the productiveness paying twice as much to the tithe. Whatever takes more from the greater of two quantities than from the less, diminishes the difference between them. The imposition of a tithe on corn would take a tithe also from corn-rent: for if we reduce a series of numbers by a tenth each, the differences between them are reduced one-tenth.
​For example, let there be five qualities of land, which severally yield, on the same extent of ground, and with the same expenditure, 100, 90, 80, 70, and 60 bushels of wheat; the last of these being the lowest quality which the demand for food renders it necessary to cultivate. The rent of these lands will be as follows:—
| The land producing | 100 | bushels | will yield a rent of | 100—60, or 40 bushels. |
| That producing | 90 | ,, | ,, | 90—60, or 30,, |
| ,, | 80 | ,, | ,, | 80—60, or 20,, |
| ,, | 70 | ,, | ,, | 70—60, or 10,, |
| ,, | 60 | ,, | ,, | no rent. |
Now let a tithe be imposed, which takes from these five pieces of land 10, 9, 8, 7, and 6 bushels respectively, the fifth quality still being the one which regulates the price, but returning to the farmer, after payment of tithe, no more than 54 bushels:—
| The land producing | $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,$ | 100 | bushels reduced to | 90, | will yield a rent of | 90—54, or 36 bushels. |
| That producing | $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,$ | 90 | ,,,, | 81 | ,, | 81—54, or 27,, |
| ,, | | 80 | ,,,, | 72 | ,, | 72—54, or 18,, |
| ,, | | 70 | ,,,, | 63 | ,, | 63—54, or9,, |
and that producing 60 bushels, reduced to 54, will yield, as before, no rent. So that the rent of the first quality of land has lost four bushels; of the second, three; of the third, two; and of the fourth, one: that is, each has lost exactly one-tenth. A tax, therefore, of a fixed proportion of the produce, lowers, in the same proportion, corn-rent.
But it is only corn-rent that is lowered, and not rent estimated in money, or in any other commodity. For, in the same proportion as corn-rent is reduced in quantity, the corn composing it is raised in value. Under the tithe, 54 bushels will be worth in the market what 60 were before; and nine-tenths will in all cases sell for as much as the whole ten-tenths previously sold for. The landlords will therefore be compensated in value and price for what they lose in quan​tity; and will suffer only so far as they consume their rent in kind, or after receiving it in money, expend it in agricultural produce: that is, they only suffer as consumers of agricultural produce, and in common with all the other consumers. Considered as landlords, they have the same income as before; the tithe, therefore, falls on the consumer, and not on the landlord.
The same effect would be produced on rent, if the tax, instead of being a fixed proportion of the produce, were a fixed sum per quarter or per bushel. A tax which takes a shilling for every bushel, takes more shillings from one field than from another, just in proportion as it produces more bushels; and operates exactly like tithe, except that tithe is not only the same proportion on all lands, but is also the same proportion at all times, while a fixed sum of money per bushel will amount to a greater or a less proportion, according as corn is cheap or dear.
There are other modes of taxing agriculture, which would affect rent differently. A tax proportioned to the rent would fall wholly on the rent, and would not at all raise the price of corn, which is regulated by the portion of the produce that pays no rent. A fixed tax of so much per cultivated acre, without distinction of value, would have effects directly the reverse. Taking no more from the best qualities of land than from the worst, it would leave the differences the same as before, and consequently the same corn-rents, and the landlords would profit to the full extent of the rise of price. To put the thing in another manner; the price must rise sufficiently to enable the worst land to pay the tax; thus enabling all lands which produce more than the worst, to pay not only the tax, but also an increased rent to the landlords. These, however, are not so much taxes on the produce of land, as taxes on the land itself. Taxes on the produce, properly so called, whether fixed or ad valorem, do not affect rent, but fall on the consumer: profits, however, generally bearing either the whole or the greatest part of the portion which is levied on the consumption of the labouring classes.
§ 4.The preceding is, I apprehend, a correct statement of the manner in which taxes on agricultural produce operate when first laid on. When, however, they are of old standing, their effect may be different, as was first pointed out, I believe, by Mr. Senior. It is, as we have seen, an almost infallible consequence of any reduction of profits, to retard the rate of accumulation. Now the effect of accumulation, when attended by its usual accompaniment, an increase of population, is to increase the value and price of food, to raise rent, and to lower profits: that is, to do precisely what is done by a tax on agricultural produce, except that this does not raise rent. The tax, therefore, merely anticipates the rise of price, and fall of profits, which would have taken place ultimately through the mere progress of accumulation; while it at the same time prevents, or at least retards, that progress. If the rate of profit was such, previous to the imposition of a tithe, that the effect of the tithe reduces it to the practical minimum, the tithe will put a stop to all further accumulation, or cause it to take place out of the country; and the only effect which the tithe will then have had on the consumer, is to make him pay earlier the price which he would have had to pay somewhat later—part of which, indeed, in the gradual progress of wealth and population, he would have almost immediately begun to pay. After a lapse of time which would have admitted of a rise of one-tenth through the natural progress of wealth, the consumer will be paying no more than he would have paid if the tithe had never existed; he will have ceased to pay any portion of it, and the person who will really pay it is the landlord, whom it deprives of the increase of rent which would by that time have accrued to him. At every successive point in this interval of time, less of the burthen will rest on the consumer, and more of it on the landlord: and in the ultimate result, the minimum of profits will be reached with a smaller capital and population, and a lower rental, than if the course of things had not been disturbed by the imposition of the ​tax. If, on the other hand, the tithe or other tax on agricultural produce does not reduce profits to the minimum, but to something above the minimum, accumulation will not be stopped, but only slackened: and if population also increases, the two-fold increase will continue to produce its effects—a rise of the price of corn, and an increase of rent. These consequences, however, will not take place with the same rapidity as if the higher rate of profit had continued. At the end of twenty years the country will have a smaller population and capital, than, but for the tax, it would by that time have had; the landlords will have a smaller rent; and the price of corn, having increased less rapidly than it would otherwise have done, will not be so much as a tenth higher than what, if there had been no tax, it would by that time have become. A part of the tax, therefore, will already have ceased to fall on the consumer, and devolved upon the landlord; and the proportion will become greater and greater by lapse of time.
Mr. Senior illustrates this view of the subject by likening the effects of tithes, or other taxes on agricultural produce to those of natural sterility of soil. If the land of a country without access to foreign supplies, were suddenly smitten with a permanent deterioration of quality, to an extent which would make a tenth more labour necessary to raise the existing produce, the price of corn would undoubtedly rise one-tenth. But it cannot hence be inferred that if the soil of the country had from the beginning been one-tenth worse than it is, corn would at present have been one-tenth dearer than we find it It is far more probable, that the smaller return to labour and capital, ever since the first settlement of the country, would have caused in each successive generation a less rapid increase than has taken place: that the country would now have contained less capital, and maintained a smaller population, so that notwithstanding the inferiority of the soil, the price of corn would not have been higher, nor profits lower, than at present; rent alone would ​certainly have been lower. We may suppose two islands, which, being alike in extent, in natural fertility, and industrial advancement, have up to a certain time been equal in population and capital, and have had equal rentals, and the same price of corn. Let us imagine a tithe imposed in one of these islands, but not in the other. There will be immediately a difference in the price of corn, and therefore probably in profits. While profits are not tending downwards in either country, that is, while improvements in the production of necessaries fully keep pace with the increase of population, this difference of prices and profits between the islands may continue. But if, in the untithed island, capital increases, and population along with it, more than enough to counterbalance any improvements which take place, the price of corn will gradually rise, profits will fall, and rent will increase; while in the tithed island capital and population will either not increase (beyond what is balanced by the improvements), or if they do, will increase in a less degree; so that rent and the price of corn will either not rise at all, or rise more slowly. Bent, therefore, will soon be higher in the untithed than in the tithed island, and profits not so much higher, nor corn so much cheaper, as they were on the first imposition of the tithe. These effects will be progressive. At the end of every ten years there will be a greater difference between the rentals and between the aggregate wealth and population of the two islands, and a less difference in profits and in the price of corn.
At what point will these last differences entirely cease, and the temporary effect of taxes on agricultural produce, in raising the price, have entirely given place to the ultimate effect, that of limiting the total produce of the country? Though the untithed island is always verging towards the point at which the price of food would overtake that in the tithed island, its progress towards that point naturally slackens as it draws nearer to attaining it; since the difference between the two islands in the rapidity of accumula​tion depending upon the difference in the rates of profit in proportion as these approximate, the movement which draws them closer together, abates of its force. The one may not actually overtake the other, until both islands reach the minimum of profits: up to that point, the tithed island may continue more or less ahead of the untithed island in the price of corn: considerably ahead if it is far from the minimum, and is therefore accumulating rapidly; very little ahead if it is near the minimum, and accumulating slowly.
But whatever is true of the tithed and untithed islands in our hypothetical case, is true of any country having a tithe, compared with the same country if it had never had a tithe.
In England the great emigration of capital, and the almost periodical occurrence of commercial crises through the speculations occasioned by the habitually low rate of profit, are indications that profit has attained the practical, though not the ultimate minimum, and that all the savings which take place (beyond what improvements, tending to the cheapening of necessaries, make room for) are either sent abroad for investment, or periodically swept away. There can therefore, I think, be little doubt that if England had never had a tithe, or any tax on agricultural produce, the price of corn would have been by this time as high, and the rate of profits as low, as at present. Independently of the more rapid accumulation which would have taken place if profits had not been prematurely lowered by these imposts; the mere saving of a part of the capital which has been wasted in unsuccessful speculations, and the keeping at home a part of that which has been sent abroad, would have been quite sufficient to produce the effect, I think, therefore, with Mr. Senior, that the tithe, even before its commutation, had ceased to be a cause of high prices or low profits, and had become a mere deduction from rent; its other effects being, that it caused the country to have no greater capital, no larger production, and no more numerous population than if it had been one​tenth less fertile than it is; or let us rather say one-twentieth (considering how great a portion of the land of Great Britain was tithe-free).
But though tithes and other taxes on agricultural produce, when of long standing, either do not raise the price of food and lower profits at all, or if at all, not in proportion to the tax; yet the abrogation of such taxes, when they exist, does not the less diminish price, and, in general, raise the rate of profit. The abolition of a tithe takes one-tenth from the cost of production, and consequently from the price, of all agricultural produce; and unless it permanently raises the labourer's requirements, it lowers the cost of labour, and raises profits. Rent, estimated in money or in commodities, generally remains as before; estimated in agricultural produce, it is raised. The country adds as much by the repeal of a tithe, to the margin which intervenes between it and the stationary state, as is cut off from that margin by a tithe when first imposed. Accumulation is greatly accelerated; and if population also increases, the price of corn immediately begins to recover itself, and rent to rise; thus gradually transferring the benefit of the remission, from the consumer to the landlord.
The effects which thus result from abolishing tithe, result equally from what has been done by the arrangements under the Commutation Act for converting it into a rent-charge. When the tax, instead of being levied on the whole produce of the soil, is levied only from the portions which pay rent, and does not touch any fresh extension of cultivation, the tax no longer forms any part of the cost of production of the portion of the produce which regulates the price of all the rest. The land or capital which pays no rent, can now send its produce to market one-tenth cheaper. The commutation of tithe ought therefore to have produced a considerable fall in the average price of corn. If it had not come so gradually into operation, and if the price of corn had nut during the same period been under the influence of several ​other causes of change, the effect would probably have been markedly conspicuous. As it is, there can be no doubt that this circumstance has had its share in the fall which has taken place in the cost of production and in the price of home-grown produce; though the effects of the great agricultural improvements which have been simultaneously advancing, and of the free admission of agricultural produce from foreign countries, have masked those of the other cause. This fall of price would not in itself have any tendency injurious to the landlord, since corn-rents are increased in the same ratio in which the price of corn is diminished. But neither does it in any way tend to increase his income. The rent-charge, therefore, which is substituted for tithe, is a dead loss to him at the expiration of existing leases: and the commutation of tithe was not a mere alteration in the mode iu which the landlord bore an existing burthen, but the imposition of a new one; relief being afforded to the consumer at the expense of the landlord, who, however, begins immediately to receive progressive indemnification at the consumer's expense, by the impulse given to accumulation and population.
§ 5.We have hitherto inquired into the effects of taxes on commodities, on the assumption that they are levied impartially on every mode in which the commodity can be produced or brought to market. Another class of considerations is opened, if we suppose that this impartiality is not maintained, and that the tax is imposed, not on the commodity, but on some particular mode of obtaining it.
Suppose that a commodity is capable of being made by two different processes; as a manufactured commodity may be produced either by hand or by steam-power; sugar may be made either from the sugar-cane or from beet-root, cattle fattened either on hay and green crops, or on oil-cake and the refuse of breweries. It is the interest of the community, that of the two methods, producers should adopt that which ​produces the best article at the lowest price. This being also the interest of the producers, unless protected against competition, and shielded from the penalties of indolence; the process most advantageous to the community is that which, if not interfered with by government, they ultimately find it to their advantage to adopt Suppose however that a tax is laid on one of the processes, and no tax at all, or one of smaller amount, on the other. If the taxed process is the one which the producers would not have adopted, the measure is simply nugatory. But if the tax falls, as it is of course intended to do, upon the one which they would have adopted, it creates an artificial motive for preferring the untaxed process, though the inferior of the two. If, therefore, it has any effect at all, it causes the commodity to be produced of worse quality, or at a greater expense of labour; it causes so much of the labour of the community to be wasted, and the capital employed in supporting and remunerating the labour to be expended as uselessly, as if it were spent in hiring men to dig holes and fill them up again. This waste of labour and capital constitutes an addition to the cost of production of the commodity, which raises its value and price in a corresponding ratio, and thus the owners of the capital are indemnified. The loss falls on the consumers; though the capital of the country is also eventually diminished, by the diminution of their means of saving, and in some degree, of their inducements to save.
The kind of tax, therefore, which comes under the general denomination of a discriminating duty, transgresses the rule that taxes should take as little as possible from the tax-payer beyond what they bring into the treasury of the state. A discriminating duty makes the consumer pay two distinct taxes, only one of which is paid to the government, and that frequently the less onerous of the two. If a tax were laid on sugar produced from the cane, leaving the sugar from beet-root untaxed, then in so far as cane sugar continued to be used, the tax on it would be paid to the treasury, and ​might be as unobjectionable as most other taxes; but if cane sugar, having previously been cheaper than beet-root sugar, was now dearer, and beet-root sugar was to any considerable amount substituted for it, and fields laid out and manufactories established in consequence, the government would gain no revenue from the beet-root sugar, while the consumers of it would pay a real tax. They would pay for beet-root sugar more than they had previously paid for cane sugar, and the difference would go to indemnify producers for a portion of the labour of the country actually thrown away, in producing by the labour of (say) three hundred men, what could be obtained by the other process with the labour of two hundred.
One of the commonest cases of discriminating duties, is that of a tax on the importation of a commodity capable of being produced at home, unaccompanied by an equivalent tax on the home production. A commodity is never permanently imported, unless it can be obtained from abroad at a smaller cost of labour and capital on the whole, than is necessary for producing it. If, therefore, by a duty on the importation, it is rendered cheaper to produce the article than to import it, an extra quantity of labour and capital is expended, without any extra result. The labour is useless, and the capital is spent in paying people for laboriously doing nothing. All custom duties which operate as an encouragement to the home production of the taxed article, are thus an eminently wasteful mode of raising a revenue.
This character belongs in a peculiar degree to custom duties on the produce of land, unless countervailed by excise duties on the home production. Such taxes bring less into the public treasury, compared with what they take from the consumers, than any other imposts to which civilized nations are usually subject. If the wheat produced in a country is twenty millions of quarters, and the consumption twenty-one millions, a million being annually imported, and if on this million a duty is laid which raises the price ten shil​lings per quarter, the price which is raised is not that of the million only, but of the whole twenty-one millions. Taking the most favourable, but extremely improbable supposition, that the importation is not at all checked, nor the home production enlarged, the state gains a revenue of only half a million, while the consumers are taxed ten millions and a half; the ten millions being a contribution to the home growers, who are forced by competition to resign it all to the landlords. The consumer thus pays to the owners of land an additional tax, equal to twenty times that which he pays to the state. Let us now suppose that the tax really checks importation. Suppose importation stopped altogether in ordinary years; it being found that the million of quarters can be obtained, by a more elaborate cultivation, or by breaking up inferior land, at a less advance than ten shillings upon the previous price—say, for instance, five shillings a quarter. The revenue now obtains nothing, except from the extraordinary imports which may happen to take place in a season of scarcity. But the consumers pay every year a tax of five shillings on the whole twenty-one millions of quarters, amounting to 5¼ millions sterling. Of this the odd 250,000l. goes to compensate the growers of the last million of quarters for the labour and capital wasted under the compulsion of the law. The remaining five millions go to enrich the landlords as before.
Such is the operation of what are technically termed Corn Laws, when first laid on; and such continues to be their operation, so long as they have any effect at all in raising the price of corn. But I am by no means of opinion that in the long run they keep up either prices or rents in the degree which these considerations might lead us to suppose. What we have said respecting the effect of tithes and other taxes on agricultural produce, applies in a great degree to corn laws: they anticipate artificially a rise of price and of rent, which would at all events have taken place through the increase of population and of production. The difference between a ​country without corn laws, and a country which has long had corn laws, is not so much that the last has a higher price or a larger rental, but that it has the same price and the same rental with a smaller aggregate capital and a smaller population. The imposition of corn laws raises rents, but retards that progress of accumulation which would in no long period have raised them fully as much. The repeal of corn laws tends to lower rents, but it unchains a force which, in a progressive state of capital and population, restores and even increases the former amount. There is every reason to expect that under the virtually free importation of agricultural produce, at last extorted from the ruling powers of this country, the price of food, if population goes on increasing, will gradually but steadily rise; though this effect may for a time be postponed by the strong current which in this country has set in (and the impulse is extending itself to other countries) towards the improvement of agricultural science, and its increased application to practice.
What we have said of duties on importation generally, is equally applicable to discriminating duties which favour importation from one place or in one particular manner, in contradistinction to others: such as the preference given to the produce of a colony, or of a country with which there is a commercial treaty: or the higher duties formerly imposed by our navigation laws on goods imported in other than British shipping. Whatever else may be alleged in favour of such distinctions, whenever they are not nugatory, they are economically wasteful. They induce a resort to a more costly mode of obtaining a commodity, in lieu of one less costly, and thus cause a portion of the labour which the country employs iu providing itself with foreign commodities, to be sacrificed without return.
§ 6.There is one more point relating to the operation of taxes on commodities conveyed from one country to another, which requires notice: the influence which they exert ​on international exchanges. Every tax on a commodity tends to raise its price, and consequently to lessen the demand for it in the market in which it is sold. All taxes on international trade tend, therefore, to produce a disturbance and a readjustment of what we have termed the Equation of International Demand. This consideration leads to some rather curious consequences, which have been pointed out in the separate essay on International Commerce, already several times referred to in this treatise.
Taxes on foreign trade are of two kinds—taxes on imports, and on exports. On the first aspect of the matter it would seem that both these taxes are paid by the consumers of the commodity; that taxes on exports consequently fall entirely on foreigners, taxes on imports wholly on the home consumer. The true state of the case, however, is much more complicated.
"By taxing exports, we may, in certain circumstances, produce a division of the advantage of the trade more favour able to ourselves. In some cases we may draw into our coffers, at the expense of foreigners, not only the whole tax, but more than the tax: in other cases, we should gain exactly the tax; in others, less than the tax. In this last case, a part of the tax is borne by ourselves: possibly the whole, possibly even, as we shall show, more than the whole."
Reverting to the supposititious case employed in the Essay, of a trade between Germany and England in broadcloth and linen, "suppose that England taxes her export of cloth, the tax not being supposed high enough to induce Germany to produce cloth for herself. The price at which cloth can be sold in Germany is augmented by the tax. This will probably diminish the quantity consumed. It may diminish it so much that, even at the increased price, there will not be required so great a money value as before. Or it may not diminish it at all, or so little, that in consequence of the higher price, a greater money value will be purchased than before. In this last case, England will gain, at the expense ​of Germany, not only the whole amount of the duty, but more; for, the money value of her exports to Germany being increased, while her imports remain the same, money will flow into England from Germany. The price of cloth will rise in England, and consequently in Germany; but the price of linen will fall in Germany, and consequently in England. We shall export less cloth, and import more linen, till the equilibrium is restored. It thus appears (what is at first sight somewhat remarkable) that by taxing her exports, England would, in some conceivable circumstances, not only gain from her foreign customers the whole amount of the tax, but would also get her imports cheaper. She would get them cheaper in two ways; for she would obtain them for less money, and would have more money to purchase them with. Germany, on the other hand, would suffer doubly: she would have to pay for her cloth a price increased not only by the duty, but by the influx of money into England, while the same change in the distribution of the circulating medium would leave her less money to purchase it with.
"This, however, is only one of three possible cases. If, after the imposition of the duty, Germany requires so diminished a quantity of cloth, that its total value is exactly the same as before, the balance of trade would be undisturbed; England will gain the duty, Germany will lose it, and nothing more. If, again, the imposition of the duty occasions such a falling off in the demand that Germany requires a less pecuniary value than before, our exports will no longer pay for our imports; money must pass from England into Germany; and Germany's share of the advantage of the trade will be increased. By the change in the distribution of money, cloth will fall in England; and therefore it will, of course, fall in Germany. Thus Germany will not pay the whole of the tax. From the same cause, linen will rise in Germany, and consequently in England. When this alteration of prices has so adjusted the demand, that the cloth and the ​linen again pay for one another, the result is that Germany has paid only a part of the tax, and the remainder of what has been received into our treasury has come indirectly out of the pockets of our own consumers of linen, who pay a higher price for that imported commodity in consequence of the tax on our exports, while at the same time, they, in consequence of the efflux of money and the fall of prices, have smaller money incomes wherewith to pay for the linen at that advanced price.
"It is not an impossible supposition that by taxing our exports we might not only gain nothing from the foreigner, the tax being paid out of our own pockets, but might even compel our own people to pay a second tax to the foreigner. Suppose, as before, that the demand of Germany for cloth falls off so much on the imposition of the duty, that she requires a smaller money value than before, but that the case is so different with linen in England, that when the price rises the demand either does not fall off at all, or so little that the money value required is greater than before. The first effect of laying on the duty is, as before, that the cloth exported will no longer pay for the linen imported. Money will therefore flow out of England into Germany. One effect is to raise the price of linen in Germany, and consequently in England. But this, by the supposition, instead of stopping the efflux of money, only makes it greater, because the higher the price, the greater the money value of the linen consumed. The balance, therefore, can only be restored by the other effect, which is going on at the same time, namely, the fall of cloth in the English and consequently in the German market. Even when cloth has fallen so low that its price with the duty is only equal to what its price without the duty was at first, it is not a necessary consequence that the fall will stop; for the same amount of exportation as before will not now suffice to pay the increased money value of the imports; and although the German consumers have now not only cloth at the old price, but likewise increased ​money incomes, it is not certain that they will be inclined to employ the increase of their incomes in increasing their purchases of cloth. The price of cloth, therefore, must perhaps fall, to restore the equilibrium, more than the whole amount of the duty; Germany may be enabled to import cloth at a lower price when it is taxed, than when it was untaxed: and this gain she will acquire at the expense of the English consumers of linen, who, in addition, will be the real payers of the whole of what is received at their own custom-house under the name of duties on the export of cloth."
It is almost unnecessary to remark that cloth and linen are here merely representatives of exports and imports in general; and that the effect which a tax on exports might have in increasing the cost of imports, would affect the imports from all countries, and not peculiarly the articles which might be imported from the particular country to which the taxed exports were sent.
"Such are the extremely various effects which may result to ourselves and to our customers from the imposition of taxes on our exports; and the determining circumstances are of a nature so imperfectly ascertainable, that it must be almost impossible to decide with any certainty, even after the tax has been imposed, whether we have been gainers by it or losers."
In general however there could be little doubt that a country which imposed such taxes would succeed in making foreign countries contribute something to its revenue; but unless the taxed article be one for which their demand is extremely urgent, they will seldom pay the whole of the amount which the tax brings in. "In any case, whatever we gain is lost ​by somebody else, and there is the expense of the collection besides: if international morality, therefore, were rightly understood and acted upon, such taxes, as being contrary to the universal weal, would not exist."
Thus far of duties on exports. We now proceed to the more ordinary case of duties on imports. "We have had an example of a tax on exports, that is, on foreigners, fulling in part on ourselves. We shall therefore not be surprised if we find a tax on imports, that is, on ourselves, partly falling upon foreigners.
"Instead of taxing the cloth which we export, suppose that we tax the linen which we import. The duty which we are now supposing must not be what is termed a protecting duty, that is, a duty sufficiently high to induce us to produce the article at home. If it had this effect, it would destroy entirely the trade both in cloth and in linen, and both countries would lose the whole of the advantage which they previously gained by exchanging those commodities with one another. We suppose a duty which might diminish the consumption of the article, but which would not prevent us from continuing to import, as before, whatever linen we did consume.
"The equilibrium of trade would be disturbed if the imposition of the tax diminished, in the slightest degree, the quantity of linen consumed. For, as the tax is levied at our own custom-house, the German exporter only receives the same price as formerly, though the English consumer pays a higher one. If, therefore, there be any diminution of the quantity bought, although a larger sum of money may be actually laid out in the article, a smaller one will be due from England to Germany: this sum will no longer be an equivalent for the sum due from Germany to England for cloth, the balance therefore must be paid in money. Prices will fall in Germany and rise in England; linen will fall in the German market; cloth will rise in the English. The Germans will pay a higher price for cloth, and will have smaller money ​incomes to buy it with; while the English will obtain linen cheaper, that is, its price will exceed what it previously was by less than the amount of the duty, while their means of purchasing it will be increased by the increase of their money incomes.
"If the imposition of the tax does not diminish the demand, it will leave the trade exactly as it was before. We shall import as much, and export as much; the whole of the tax will be paid out of our own pockets.
"But the imposition of a tax on a commodity almost always diminishes the demand more or less; and it can never, or scarcely ever, increase the demand. It may, therefore, be laid down as a principle, that a tax on imported commodities, when it really operates as a tax, and not as a prohibition either total or partial, almost always falls in part upon the foreigners who consume our goods; and that this is a mode in which a nation may appropriate to itself, at the expense of foreigners, a larger share than would otherwise belong to it of the increase in the general productiveness of the labour and capital of the world, which results from the interchange of commodities among nations."
Those are, therefore, in the right who maintain that taxes on imports are partly paid by foreigners; but they are mistaken when they say, that it is by the foreign producer. It is not on the person from whom we buy, but on all those who buy from us, that a portion of our custom-duties spontaneously falls. It is the foreign consumer of our exported commodities, who is obliged to pay a higher price for them because we maintain revenue duties on foreign goods.
There are but two cases in which duties on commodities can in any degree, or in any manner, fall on the producer. One is, when the article is a strict monopoly, and at a scarcity price. The price in this case being only limited by the desires of the buyer; the sum obtained from the restricted supply being the utmost which the buyers would consent to ​give rather than go without it; if the treasury intercepts a part of this, the price cannot be further raised to compensate for the tax, and it must he paid from the monopoly profits. A tax on rare and high-priced wines will fall wholly on the growers, or rather, on the owners of the vineyards. The second case in which the producer sometimes bears a portion of the tax, is more important: the case of duties on the produce of land or of mines. These might be so high as to diminish materially the demand for the produce, and compel the abandonment of some of the inferior qualities of land or mines. Supposing this to be the effect, the consumers, both in the country itself and in those which dealt with it, would obtain the produce at smaller cost; and a part only, instead of the whole, of the duty would fall on the purchaser, who would be indemnified chiefly at the expense of the landowners or mine-owners in the producing country.
Duties on importation may, then, be divided "into two classes: those which have the effect of encouraging some particular branch of domestic industry, and those which have not. The former are purely mischievous, both to the country imposing them, and to those with whom it trades. They prevent a saving of labour and capital, which, if permitted to be made, would be divided in some proportion or other between the importing country and the countries which buy what that country does or might export.
"The other class of duties are those which do not encourage one mode of procuring an article at the expense of another, but allow interchange to take place just as if the duty did not exist, and to produce the saving of labour which constitutes the motive to international, as to all other commerce. Of this kind are duties on the importation of any commodity which could not by any possibility be produced at home; and duties not sufficiently high to counterbalance the difference of expense between the production of the article at home and its importation. Of the money which is brought ​into the treasury of any country by taxes of this last description, a part only is paid by the people of that country; the remainder by the foreign consumers of their goods.
"Nevertheless, this latter kind of taxes are in principle as ineligible as the former, though not precisely on the same ground. A protecting duty can never be a cause of gain, but always and necessarily of loss, to the country imposing it, just so far as it is efficacious to its end. A non-protecting duty, on the contrary, would in most cases be a source of gain to the country imposing it, in so far as throwing part of the weight of its taxes upon other people is a gain; but it would be a means which it could seldom be advisable to adopt, being so easily counteracted by a precisely similar proceeding on the other side.
"If England, in the case already supposed, sought to obtain for herself more than her natural share of the advantage of the trade with Germany, by imposing a duty upon linen, Germany would only have to impose a duty upon cloth, sufficient to diminish the demand for that article about as much as the demand for linen had been diminished in England by the tax. Things would then be as before, and each country would pay its own tax. Unless, indeed, the sum of the two duties exceeded the entire advantage of the trade; for in that case the trade, and its advantage, would cease entirely.
"There would be no advantage, therefore, in imposing duties of this kind, with a view to gain by them in the manner which has been pointed out. But when any part of the revenue is derived from taxes on commodities, these may often be as little objectionable as the rest. It is evident, too, that considerations of reciprocity, which are quite unessential when the matter in debate is a protecting duty, are of material importance when the repeal of duties of this other description is discussed. A country cannot be expected to renounce the power of taxing foreigners, unless foreigners will in return practise towards itself the same forbearance. The ​only mode in which a country can save itself from being a loser by the revenue duties imposed by other countries on its commodities, is to impose corresponding revenue duties on theirs. Only it must take care that those duties be not so high as to exceed all that remains of the advantage of the trade, and put an end to importation altogether, causing the article to be either produced at home, or imported from another and a dearer market."
* ↑ It is true, this does not constitute, as at first sight it appears to do, a case of taking more out of the pockets of the people than the state receives; since if the state needs the advance, and gets it in this manner, it can dispense with an equivalent amount of borrowing in stock or exchequer bills. But it is more economical that the necessities of the state should be supplied from the disposable capital in the hands of the lending class, than by an artificial addition to the expenses of one or several classes of producers or dealers.
* ↑ Probably the strongest known instance of a large revenue raised from foreigners by a tax on exports, is the opium trade with China. The high price of the article under the Government monopoly (which is equivalent to a high export duly) has so little effect in discouraging its consumption, that it is said to have been occasionally sold in China for as much as its weight in silver.