Please also be aware that many smartphones have the functionality to block unknown numbers. If the person you are calling has enabled 'block unknown numbers' on their phone, you will not be able to call them. Some network carriers and countries do not allow you to hide your number. If you have followed all the below steps and your number is still showing, you should check with your mobile network if they allow this feature. 1. Tap Phone.
In accounting and in planning labor productivity in the USSR and other socialist countries, value (cost) measurement is the method most widely used to determine the existing level, dynamics, growth rates, and indexes of the productivity of labor at various enterprises and for various periods of time.
Productivity is an average measure of the efficiency of production. It can be expressed as the ratio of output to inputs used in the production process, i.e. output per unit of input. When all outputs and inputs are included in the productivity measure it is called total productivity. Outputs and inputs are defined in the total productivity measure as their economic values.