1.--We have now completed our analysis of the general effects to be expected from the enforcement of wage standardization throughout industry. That analysis was carried out on the underlying assumption that the general economic position of the industrial enterprises which would be included within any area of standardization was substantially alike. That assumption must now be given up. A further question must be faced. That is whether the principle of standardization, as put forward up to this point, should be limited or varied in any way because it would have to apply, as a matter of fact, to an area so great and so diversified in economic character as the United States, and to an industrial situation which is the product of a great number of separate impulses, and which is made up of a vast number of separate interests. 2.--We will consider in order the grounds upon which limitation or variation of the principle of standardization has been argued for in the past--limiting ourselves, as we must, to the most important. The first that may be taken up has arisen almost every time that wage standardization has been introduced into a craft or industry. It is the contention that, due to differences in natural or acquired advantage possessed by different enterprises in the same industry, certain going enterprises will be forced to cease production, if all are compelled to pay the same wage rates for the same work.[85] The weight of this contention must be decided in each case by the facts which support it. In some instances it may be clear that the vigorous and summary application of wage standardization would cause men to be thrown out of work, who could not easily find work elsewhere, and would make a considerable amount of fixed capital valueless or almost so. In those instances there would be reason for considering the extent to which the standardization should be carried out, and also what variations should be introduced into its application. That such cases are not infrequent is borne out by the Australasian experience of which Mr. Collier writes, "In regard to the practicability of the common rule, opinion differs. In some staple industries such as coal mining, it has been said to operate fairly. But its application to small industries and retail stores, where conditions vary more widely, is fraught with considerable risk and is proceeded with slowly.... While the power to enforce industrial conditions throughout a state or given territory is of unquestionable value, experience shows it must be exercised with caution."[86]