heavy unemployment means that fewer goods are produced, that the nation is poorer, and that there is less for everybody. - Henry Hazlitt

The government spenders tell us, for example, that if the national income is $1,500 billion then federal taxes of $360 billion a year would mean that only 24 percent of the national income is being transferred from private purposes to public purposes. This is to talk as if the country were the same sort of unit of pooled resources as a huge corporation, and as if all that were involved were a mere bookkeeping transaction. The government spenders forget that they are taking the money from A in order to pay it to B. Or rather, they know this very well; but while they dilate upon all the benefits of the process to B, and all the wonderful things he will have which he would not have had if the money had not been transferred to him, they forget the effects of the transaction on A. B is seen; A is forgotten.

Economics is haunted by more fallacies than any other study known to man. This is no accident. The inherent difficulties of the subject would be great enough in any case, but they are multiplied a thousandfold by a factor that is insignificant in, say, physics, mathematics or medicine - the special pleading of selfish interests. While every group has certain economic interests identical with those of all groups, every group has also, as we shall see, interests antagonistic to those of all other groups. While certain public policies would in the long run benefit everybody, other policies would benefit one group only at the expense of all other groups. The group that would benefit by such policies, having such a direct interest in them, will argue for them plausibly and persistently. It will hire the best buyable minds to devote their whole time to presenting its case. And it will finally either convince the general public that its case is sound, or so befuddle it that clear thinking on the subject becomes next to impossible.

In addition to these endless pleadings of self-interest, there is a second main factor that spawns new economic fallacies every day. This is the persistent tendency of man to see only the immediate effects of a given policy, or its effects only on a special group, and to neglect to inquire what the long-run effects of that policy will be not only on that special group but on all groups. It is the fallacy of overlooking secondary consequences.

In an exchange economy everybody’s money income is somebody else’s cost. Every increase in hourly wages, unless or until compensated by an equal increase in hourly productivity, is an increase in costs of production. An increase in costs of production, where the government controls prices and forbids any price increase, takes the profit from marginal producers, forces them out of business, means a shrinkage in production and a growth in unemployment. Even where a price increase is possible, the higher price discourages buyers, shrinks the market, and also leads to unemployment. If a 30 percent increase in hourly wages all around the circle forces a 30 percent increase in prices, labor can buy no more of the product than it could at the beginning; and the merry-go-round must start all over again.