If we know, for instance, that a bank failure has taken ?00,000from the people of Leeds and ?00,000 from those of Sheffield, we may fairly assume that the suffering caused in Leeds has been about twice as great as in Sheffield; unless indeed we have some special reason for believing that the shareholders of the bank in the one town were a richer class than those in the other; or that the loss of employment caused by it pressed in uneven proportions on the working classes in the two towns.
By far the greater number of the events with which economics deals affect in about equal proportions all the different classes of society; so that if the money measures of the happiness caused by two events are equal, it is reasonable and in accordance with common usage to regard the amounts of the happiness in the two cases as equivalent.And, further, as money is likely to be turned to the higher uses of life in about equal proportions, by any two large groups of people taken without special bias from any two parts of the western world, there is even some prima facie probability that equal additions to their material resources will make about equal additions to the fulness of life, and true progress of the human race.
3.To pass to another point.When we speak of the measurement of desire by the action to which it forms the incentive, it is not to be supposed that we assume every action to be deliberate, and the outcome of calculation.For in this, as in every other respect, economics takes man just as he is in ordinary life: and in ordinary life people do not weigh beforehand the results of every action, whether the impulses to it come from their higher nature or their lower.(4*)Now the side of life with which economics is specially concerned is that in which man's conduct is most deliberate, and in which he most often reckons up the advantages and disadvantages of any particular action before he enters on it.
And further it is that side of his life in which, when he does follow habit and custom, and proceeds for the moment without calculation, the habits and customs themselves are most nearly sure to have arisen from a close and careful watching the advantages and disadvantages of different courses of conduct.
There will not in general have been any formal reckoning up of two sides of a balance-sheet: but men going home from their day's work, or in their social meetings, will have said to one another, "It did not answer to do this, it would have been better to do that," and so on.What makes one course answer better than another, will not necessarily be a selfish gain, nor any material gain; and it will often have been argued that." though this or that plan saved a little trouble or a little money, yet it was not fair to others," and "it made one look mean," or "it made one feel mean." It is true that when a habit or a custom, which has grown up under one set of conditions, influences action under other conditions, there is so far no exact relation between the effort and the end which is attained by it.In backward countries there are still many habits and customs similar to those that lead a beaver in confinement to build himself a dam; they are full of suggestiveness to the historian, and must be reckoned with by the legislator.But in business matters in the modern world such habits quickly die away.
Thus then the most systematic part of people's lives is generally that by which they earn their living.The work of all those engaged in any one occupation can be carefully observed;general statements can be made about it, and tested by comparison with the results of other observations; and numerical estimates can be framed as to the amount of money or general purchasing power that is required to supply a sufficient motive for them.
The unwillingness to postpone enjoyment, and thus to save for future use, is measured by the interest on accumulated wealth which just affords a sufficient incentive to save for the future.
This measurement presents however some special difficulties, the study of which must be postponed.
4.Here, as elsewhere, we must bear in mind that the desire to make money does not itself necessarily proceed from motives of a low order, even when it is to be spent on oneself.Money is a means towards ends, and if the ends are noble, the desire for the means is not ignoble.The lad who works hard and saves all he can, in order to be able to pay his way afterwards at a University, is eager for money; but his eagerness is not ignoble.
In short, money is general purchasing power, and is sought as a means to all kinds of ends, high as well as low, spiritual as well as material.(5*)Thus though it is true that "money" or "general purchasing power" or "command over material wealth", is the centre around which economic science clusters; this is so, not because money or material wealth is regarded as the main aim of human effort, nor even as affording the main subject-matter for the study of the economist, but because in this world of ours it is the one convenient means of measuring human motive on a large scale.If the older economists had made this clear, they would have escaped many grievous misrepresentations; and the splendid teachings of Carlyle and Ruskin as to the right aims of human endeavour and the right uses of wealth, would not then have been marred by bitter attacks on economics, based on the mistaken belief that that science had no concern with any motive except the selfish desire for wealth, or even that it inculcated a policy of sordid selfishness.(6*)Again, when the motive to a man's action is spoken of as supplied by the money which he will earn, it is not meant that his mind is closed to all other considerations save those of gain.For even the most purely business relations of life assume honesty and good faith; while many of them take for granted, if not generosity, yet at least the absence of meanness, and the pride which every honest man takes in acquitting himself well.