is not conceivable that persons whose wants were completely satisfied would labour and economize to obtain what they did not desire, suppose that a foreigner arrives and produces an additional quantity of something of which there was already enough. Here, it will be said, is over-production: true, I reply; over-production of that particular article: the community wanted no more of that, but it wanted something. The old inhabitants, indeed, wanted nothing; but did not the foreigner himself want something? When he produced the superfluous article, was he labouring without a motive? He has produced, but the wrong thing instead of the right. He wanted, perhaps, food, and has produced watches, with which everybody was sufficiently supplied. The new comer brought with him into the country a demand for commodities, equal to all that he could produce by his industry, and it was his business to see that the supply he brought should be suitable to that demand. If he could not produce something capable of exciting a new want or desire in the community, for the satisfaction of which some one would grow more food and give it to him in exchange, he had the alternative of growing food for himself; either on fresh land, if there was any unoccupied, or as a tenant, or partner, or servant, of some former occupier, willing to be partially relieved from labour. He has produced a thing not wanted, instead of what was wanted; and he himself, perhaps, is not the kind of producer who is wanted; but there is no over-production; production is not excessive, but merely ill assorted. We saw before, that whoever brings additional commodities to the market, brings an additional power of purchase; we now see that he brings also an additional desire to consume; since if he had not that desire, he would not have troubled himself to produce. Neither of the elements of demand, therefore, can be wanting, when there is an additional supply; though it is perfectly possible that the demand may be for one thing, and the supply may unfortunately consist of another.
Driven to his last retreat, an opponent may perhaps
