The head of a great banking house makes a decision regarding an underwriting operation. On his decision depends the question of whether or not the securities are issued. On the issue of the new securities depends, in part, the values of the existing securities of the corporation in question, and the nature of the future employment of thousands of men and great quantities of land and capital. Tremendous power is concentrated in the hands of this banker. But it is not _his_ power! He cannot exercise it in an arbitrary or capricious way. He approaches his problem in much the same spirit that the judge approaches a disputed question of law. He analyzes the factors involved. He considers the condition of the money-market, the question of the probable ease or difficulty of marketing the new securities to investors, the prospects of the business of the corporation in question, the probable future demand for its products, the stability of that demand, the personnel of the management of the corporation, the attitude of the government toward it, the nature of its other outstanding securities, with special reference to the proportion of bonds to stocks, and the amount of "fixed charges" against its earnings. He may also take into account other enterprises of similar character which he has connections with, and the question of whether or not building up the corporation in question may injure other corporations to which he has responsibilities. He looks far into the future, seeking to conserve his prestige, and unwilling to assume responsibility for an issue which investors will later lose faith in. Proximately, his decision is tremendously important, and his thoughts and feelings are of immense significance, but ultimately, _they_ are determined by all manner of social considerations, and _always_, _the degree to which they count_ in determining values depends on his weight in the economic situation, which rests (1) on his _prestige_, _i. e._, the massing of beliefs and hopes of many men, (2) on his _wealth_, which rests in the legal and moral values governing distribution, and (3) on his institutional relationships, which again are psychological facts, partly legal in character. He is as much a social instrument as is the judge. Both may abuse their power. Both do at times abuse their power. But the significant point is that the power both have is social power, and is in no sense proportional to the intensity of their own emotions. It arises from the emotional power in the minds of many men.