Donald Boudreaux recupera una excelente cita de James Buchanan sobre cómo el mercado tiende a la eficiencia, autocorrigiéndose si los partícipes no están satisfechos con el resultado:
The motivation for individuals to engage in trade, the source of the propensity [to "truck, barter and exchange" - Adam Smith (1776)], is surely that of "efficiency," defined in the personal sense of moving from less preferred to more preferred positions, and doing so under mutually acceptable terms. An "inefficient" institution, one that produces largely "inefficient" results, cannot, by the nature of man, survive until and unless coercion is introduced to prevent the emergence of alternative arrangements.
Let me illustrate this point and, at the same time, indicate the extension of the approach I am suggesting by referring to a familiar and simple example. Suppose that the local swamp requires draining to eliminate or reduce mosquito breeding. Let us postulate that no single citizen in the community has sufficient incentive to finance the full costs of this essentially indivisible operation. Defined in the orthodox, narrow way, the "market" fails; bilateral behavior of buyers and sellers does not remove the nuisance. "Inefficiency" presumably results. This is, however, surely an overly restricted conception of market behavior. If the market institutions, defined so narrowly, will not work, they will not meet individual objectives. Individual citizens will be led, because of the same propensity, to search voluntarily for more inclusive trading or exchange arrangements. A more complex institution may emerge to drain the swamp. The task of the economist includes the study of all such cooperative trading arrangements which become merely extensions of markets more restrictively defined.
