The need of conspicuous waste, therefore, stands ready to absorb any increase in the community's industrial efficiency or output of goods, after the most elementary physical wants have been provided for.

Where this result does not follow, under modern conditions, the reason for the discrepancy is commonly to be sought in a rate of increase in the individual's wealth too rapid for the habit of expenditure to keep abreast of it; or it may be that the individual in question defers the conspicuous consumption of the increment to a later date--ordinarily with a view to heightening the spectacular effect of the aggregate expenditure contemplated.

As increased industrial efficiency makes it possible to procure the means of livelihood with less labor, the energies of the industrious members of the community are bent to the compassing of a higher result in conspicuous expenditure, rather than slackened to a more comfortable pace.

The strain is not lightened as industrial efficiency increases and makes a lighter strain possible, but the increment of output is turned to use to meet this want, which is indefinitely expansible, after the manner commonly imputed in economic theory to higher or spiritual wants.

It is owing chiefly to the presence of this element in the standard of living that J.S.Mill was able to say that "hitherto it is questionable if all the mechanical inventions yet made have lightened the day's toil of any human being." The accepted standard of expenditure in the community or in the class to which a person belongs largely determines what his standard of living will be.