The index is a index of names, symbols. A certain system of signs, indices of drugs, postal codes, etc. Most frequently used object comparison study on time characteristics. The index method also provides a means analysis to determine the existing relationship between several phenomena or groups of phenomena. In this case, to account for apply a whole system of indices.
Indexes are characterized by the following indicators:
The object of the study are the indexes of the quantitative indicators (indexes of production, consumption, etc.) and qualitative indicators (price indexes, productivity, wages).
For the integrity of learning objects in a certain category allocate individual indices that characterize the individual components of a phenomenon, and General indices that give an idea of the change of the whole phenomenon and averages derived from the first.
According to the method of calculation of the indexes to allocate the aggregate determined by comparing a certain index with another index with a given constant, which should be linked.
On the basis of the comparison, allocate the basic indexes which do not change the base of comparison for several periods of time, and chain - in which the base of comparison is constantly changing.
There is also the concept of the index in various disciplines. In mathematics is a numerical or letter mark, which marked mathematical formulas to distinguish them. The economy is an indicator of the exchange, which is closely interrelated with the change in the value of shares from the largest issuers stock exchanges. Stock indices are considered indicators of the functioning of the economy in a particular sector of the economy or the whole country.
In the index, as in conventional abstract value, it is important to its behavior in the dynamics, which shows the state of the economy at this stage of development of the industry or the whole country. The economy uses consumer price indices, index of incomes of the population, the wholesale price index, regional indexes.