Demand inducement and the physician/patient relationship.

The physician/patient relationship is a paradigm for any expert/client relationship. The physician both diagnoses the patient's illness and recommends a treatment. This dual role gives the physician incentive to recommend treatments whose costs outweigh their medical benefits. These socially inefficient treatments correspond to the notion of "physician-induced demand." The level of inducement chosen by the physician is shown to depend on the price and potential medical benefits of treatment and the relative diagnostic skills of physician and patient. This model offers several testable hypotheses, some of which are confirmed by related studies.