need is not demand. Effective economic demand requires not merely need but corresponding purchasing power. - Henry Hazlitt

So we have finished with the broken window. An elementary fallacy. Anybody, one would think, would be able to avoid it after a few moments’ thought. Yet the broken-window fallacy, under a hundred disguises, is the most persistent in the history of economics. It is more rampant now than at any time in the past. It is solemnly reaffirmed every day by great captains of industry, by chambers of commerce, by labor union leaders, by editorial writers and newspaper columnists and radio commentators, by learned statisticians using the most refined techniques, by professors of economics in our best universities. In their various ways they all dilate upon the advantages of destruction.

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

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.