Economics in One Lesson: The Shortest and Surest Way to Understand Basic Economics

by Henry Hazlitt

The volume is therefore primarily one of exposition. It makes no claim to originality with regard to any of the chief ideas that it expounds. Rather its effort is to show that many of the ideas which now pass for brilliant innovations and advances are in fact mere revivals of ancient errors, and a further proof of the dictum that those who are ignorant of the past are condemned to repeat it.

Repeating errors of the past.

My greatest debt, with respect to the kind of expository framework on which the present argument is hung, is to Frederic Bastiat’s essay Ce qu’on voit et ce qu’on ne voit pas, now nearly a century old. The present work may, in fact, be regarded as a modernization, extension and generalization of the approach found in Bastiat’s pamphlet. My second debt is to Philip Wicksteed: in particular the chapters on wages and the final summary chapter owe much to his Commonsense of Political Economy. My third debt is to Ludwig von Mises. Passing over everything that this elementary treatise may owe to his writings in general, my most specific debt is to his exposition of the manner in which the process of monetary inflation is spread.

Ludwig von Mises, Frederic Bastiat, Philip Wicksteed.

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 men 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 this lies...

The prominent role of special interests in economics, and the inability, or devious intention not to see the complexity and ambiguity in concepts and their applications in the real world.

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 men 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 this lies...

Failure to understand complexity and ambiguity of a concept as an interaction in the real world.