If our social skills (that is, our ability to secure co-operation between people) had advanced step by step with our technical skills, there would no… - Elton Mayo

The human aspect of industry has changed very considerably in the last fifty years. The nature and range of these changes are still partly unknown to us, but the question of their significance is no longer in dispute. Whereas the human problems of industry were regarded until recently as lying within the strict province of the specialist, it is now beginning to be realized that a clear statement of such problems in particular situations is necessary to the effective thinking of every business administrator and every economic expert.

In the nineteenth century there was an iU-founded hope that some species of political remedy for industrial ills might be discovered; this hope has passed. There have been very considerable political changes, both generally and also in particular national systems, since the end of the war in 1918. But the human problems of industrial organization remain identical for Moscow, London, Rome, Paris, and New York. As ever in human affairs, we are struggling against our own ignorance and not against the machinations of a political adversary.

The history of the twelve-week return to the so-called original conditions of work is soon told. The daily and weekly output rose to a point higher than at any other time and in the whole period "there was no downward trend." At the end of twelve weeks, in period thirteen, the group returned, as had been arranged, to the conditions of period seven with the sole difference that whereas the Company continued to supply coffee or other beverage for the mid-morning lunch, the girls now provided their own food. This arrangement lasted for thirty-one weeks—much longer than any previous change. Whereas in period twelve the group's output had exceeded that of all the other performances, in period thirteen, with rest-pauses and refreshment restored, their output rose once again to even greater heights