The medical profession is one in which practice of the profession has for a long time been restricted to people with licenses. Offhand, the question, “Ought we to let incompetent physicians practice?” seems to admit of only a negative answer. But I want to urge that second thought may give pause.
In the first place, licensure is the key to the control that the medical profession can exercise over the number of physicians. To understand why this is so requires some discussion of the structure of the medical profession. The American Medical Association is perhaps the strongest trade union in the United States. The essence of the power of a trade union is its power to restrict the number who may engage in a particular occupation. This restriction may be exercised indirectly by being able to enforce a wage rate higher than would otherwise prevail. If such a wage rate can be enforced, it will reduce the number of people who can get jobs and thus indirectly the number of people pursuing the occupation. This technique of restriction has disadvantages. There is always a dissatisfied fringe of people who are trying to get into the occupation. A trade union is much better off it can limit directly the number of people who enter the occupation-who ever try to get jobs in it. The disgruntled and dissatisfied are excluded at the outset, and the union does not have to worry about them.
The American Medical Association is in this position. It is a trade union that can limit the number of people who can enter. How can it do this? The essential control is at the stage of admission to medical school. The Council on Medical Education and Hospitals of the American Medical Association approves medical schools. In order for a medical school to get and stay on its list of approved schools it has to meet the standards of the Council. The power of the Council has been demonstrated at various times when there has been pressure to reduce numbers. For example, in the 1930′s during the depression, the Council on Medical Education and Hospitals wrote a letter to the various medical schools saying the medical schools were admitting more students than could be given the proper kind of training. In the next year or two, every school reduced the number it was admitting, giving very strong presumptive evidence that the recommendation had some effect. . . .
Control over admission to medical school and later licensure enables the profession to limit entry in two ways. The obvious one is simply by turning down many applicants. The less obvious, but probably far more important one, is by establishing standards for admission and licensure that make entry so difficult as to discourage young people from ever trying to get admission. . . .
In the first place, does [licensure] really raise standards of competence? It is by no means clear that it does raise the standards of competence in the actual practice of the profession for several reasons. In the first place, whenever you establish a block to entry into any field, you establish an incentive to find ways of getting around it, and of course medicine is no exception. The rise of the professions of osteopathy and of chiropractic is not unrelated to the restriction of entry into medicine. On the contrary, each of these represented, to some extent, an attempt to find a way around restriction of entry. Each of these, in turn, is proceeding to get itself licensed, and to impose restrictions. The effect is to create different levels and kinds of practice, to distinguish between what is called medical practice and substitutes such as osteopathy, chiropractic, faith healing and so on. These alternatives may well be of lower quality than medical practice would have been without the restrictions on entry into medicine.
More generally, if the number of physicians is less than it otherwise would be, and if they are fully occupied, as they generally are, this means that there is a smaller total of medical practice by trained physicians-fewer medical man-hours of practice, as it were. The alternative is untrained practice by somebody; it may and in part must be by people who have no professional qualifications at all. Moreover, the situation is much more extreme. If “medical practice” is to be limited to licensed practitioners, it is necessary to define what medical practice is, and featherbedding is not something that is restricted to the railroads. Under the interpretation of the statutes forbidding unauthorized practice of medicine, many things are restricted to licensed physicians that could perfectly well be done by technicians, and other skilled people who do not have a Cadillac medical training. I am not enough of a technician to list the examples at all fully. I only know that those who have looked into the question say that the tendency is to include in “medical practice” a wider and wider range of activities that might well be done by others. The result is to reduce drastically the amount of medical care. The relevant average quality of medical care, if one can at all conceive of the concept, cannot be obtained by simply averaging the quality of care that is given; that would be like judging the effectiveness of a medical treatment by considering only the survivors; one must also allow for the fact that the restrictions reduce the amount of care. The result may well be that the average level of competence in a meaningful sense has been reduced by the restrictions.
Even these comments do not go far enough, because they consider the situation at a point in time and do not allow for changes over time. Advances in any science or field often result from the work of one out of a large number of crackpots and quacks and people who have no standing in the profession. In the medical profession, under present circumstances, it is very difficult to engage in research or experimentation unless you are a member of the profession. If you are a member of the profession and want to stay in good standing in the profession, you are seriously limited in the kind of experimentation you can do. A “faith healer” may be just a quack who is imposing himself on credulous patients, but maybe one in a thousand or in many thousands will produce an important improvement in medicine. There are many different routes to knowledge and learning and the effect to restricting the practice of what is called medicine and defining it as we tend to do to a particular group, who in the main have to conform to the prevailing orthodoxy, is certain to reduce the amount of experimentation that goes on and hence to reduce the rate of growth of knowledge in the area. What is true for the content of medicine is true also for its organization, as has already been suggested. I shall expand further on this point below.
There is still another way in which licensure, and the associated monopoly in the practice of medicine, tend to render standards of practice low. I have already suggested that it renders the average quality of practice low by reducing the number of physicians, by reducing the aggregate number of hours available from trained physicians for more rather than less important tasks, and by reducing the incentive for research and development. It renders it low also by making it much more difficult for private individuals to collect from physicians for malpractice. One of the protections of the individual citizen against incompetence is protection against fraud and the ability to bring suit in the court against malpractice. Some suits are brought, and physicians complain a great deal about how much they have to pay for malpractice insurance. Yet suits for malpractice are fewer and less successful than they would be were it not for the watchful eye of the medical association. It is not easy to get a physician to testify against a fellow physician when he faces the sanction of being denied the right to practice in an “approved” hospital. The testimony generally has to come from members of panels set up by medical associations themselves, always, of course, in the alleged interest of the patients.
When these effects are taken into account, I am myself persuaded that licensure has reduced both the quantity and quality of medical practice; that is has reduced the opportunities available to people who would like to be physicians, forcing them to pursue occupations they regard as less attractive; that it has forced the public to pay more for less satisfactory medical service, and that it has retarded technological development both in medicine itself and in the organization of medical practice. I conclude that licensure should be eliminated as a requirement for the practice of medicine.
When all this is said, many a reader, I suspect, like many a person with whom I have discussed these issues, will say, “But still, how else would I get any evidence on the quality of a physician. Granted all that you say about costs, is not licensure the only way of providing the public with some assurance of at least minimum quality?” The answer is partly that people do not now choose physicians by picking names at random from a list of licensed physicians; partly, that a man’s ability to pass an examination twenty or thirty years earlier is hardly assurance of quality now; hence, licensure is not now the main or even a major source of assurance of at least minimum quality. But the major answer is very different. It is that the question itself reveals the tyranny of the status quo and the poverty of our imagination in fields in which we are laymen, and even in those in which we have some competence, by comparison with the fertility of the market. . . .
The impossibility of any individual or small group conceiving of all the possibilities, let alone evaluating their merits, is the great argument against central governmental planning and against arrangements such as professional monopolies that limit the possibilities of experimentation. On the other side, the great argument for the market is its tolerance of diversity; its ability to utilize a wide range of special knowledge and capacity. It renders special groups impotent to prevent experimentation and permits the customers and not the producers to decide what will serve the customers best.
This is an excerpt from Friedman’s book Capitalism and Freedom, published in 1962 by The University of Chicago Press. © 1962 by The University of Chicago Press. Reprinted by permission.