In summary, an unrestricted free market tends to produce too frequently of a bully or service when external costs ar present (Byrns 1987). The presence of the latter tends to distort prices and costs and suboptimizes economic activity from a societal viewpoint. Government practically tries to ameliorate such imbalances through regulation, t
Stiglitz, J. (1990). Economics of the public sector. NY: Norton.
Pure monopolies are relatively rare, nevertheless they do exist (Byrns, 1987). Local electrical, gas, and water utilities are good examples, since they produce a product for which there are no close substitutes. But a firm's degree of monopoly may diversify among markets. For instance, the electric company has a monopoly in the production of electrical energy for lighting purposes, but for heating its product may struggle with gas, coal, and fuel oil sold by other firms. An electric company may consequently be a 'pure monopoly' in the lighting market, but a partial one in the heating market.
Similarly, railroads, buses, taxis, and airlines are not pure monopolies, but they are partial ones depending on the extent to which buyers can substitute the products/ operate of such industries in meeting their transportation needs.
Health dish out illustrates an area where the free market does not function as it should (Stiglitz, 1990). Demand is relatively inelastic, especially when one is ill or injured. For example, if a person is in pain or has a serious illness, he or she cannot shop around for the lift out deal (as opposed to the purchase of many other service or goods). Such a long-suffering must go to the first health provider available, regardless of price. Furthermore, the price is essentially unknown until the problem is diagnosed and treated -- only after this does the patient get a bill. In addition, with medical insurance paying(a) for health services of about four-fifths of the American population, the incentive to light upon the best price and service is mitigated. Also, advertising among doctors, particularly related to price, is still generally prohibited, which minimizes the flow of such useful tuition to the consumer. Finally, the proliferation of malpractice lawsuits has markedly raised insurance costs for medical providers, as well as causing them to practice "defensive medicate" with redundant procedures, both
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