Royal Commission on Labour in India: Report(1929)||
The need for accurate information is even greater in the case of earnings than in the case of wage rates. Although some light on earnings can be obtained from the collection of accurate wage statistics, reliable information regarding these cannot ordinarily be obtained from the employer. As a matter of fact, in many cases the employer's books do not contain particulars of the earnings of the individual worker.
The employment of substitutes is not entered in the books, and other factors too often introduce errors of importance. Further, the employer is only able to give particulars of the individual when he is actually earning money. There is at present little record of periods of absence, and the record of a man's earnings for a month or two may afford an entirely misleading indication of his average annual income. Finally, even if accurate information regarding the earnings of the individual could be secured from The employer's books, it would in itself have a very limited value. We believe that in some cases employers might find such information useful as a measure of the success of any endeavour to raise the standard of living by increasing regularity of employment, but it would be of practically no value as a measure of the standard of living itself. This depends on a large number of factors lying outside the knowledge of the employer. It depends in the first instance on the income, not of the individual, but of the family, and even that income affords little indication of the measure of comfort. In order to secure this, it is necessary to have full information regarding the composition of the family and the various claims on its income.