meaning, but to cover any device for the comparative measurement of social phenomena.] you can set up a competition between individual workers in a shop; between shops; between factories; between schools; [Footnote: See, for example, An Index Number for State School Systems by Leonard P. Ayres, Russell Sage Foundation, 1920. The principle of the quota was very successfully applied in the Liberty Loan Campaigns, and under very much more difficult circumstances by the Allied Maritime Transport Council.] between government departments; between regiments; between divisions; between ships; between states; counties; cities; and the better your index numbers the more useful the competition.
6
The possibilities that lie in the exchange of material are evident. Each department of government is all the time asking for information that may already have been obtained by another department, though perhaps in a somewhat different form. The State Department needs to know, let us say, the extent of the Mexican oil reserves, their relation to the rest of the world's supply, the present ownership