Price Index System Of The Internal Relationship And External Influence Factors Of Statistical Research

Price Index is an Economic indicator to reflect the direction, trend and extent ofcommodity price level changes in different periods, a tool to study dynamic change ofprice. It provides basis for the development, adjustment and inspection of variouseconomic policies, especially pricing policies. In recent years, accompanied by the rapideconomic development, price index is also rising at an alarming rate. There is growingconcern so that it has been a hot issue in today’s society. There are many kinds of PriceIndex. This passage chooses four representative of them (CPI,PPI,RPI,MPI) and makesresearch on a series of questions which brought by the Price Index that is continuallyrising dramatically, further to establish the Price Index System, study the relationsbetween each kind of Price Index and grasp the change rule of Price Index. In addition,taking the macroeconomics theory as the foundation, the passage selects several bigindicators closer to Price Index which can reflect the movement of macroscopic economyso as to study the relationship between Price Index System and the macroscopiceconomical variable. So that we can put forward the proposal for discovering the balancepoint between the rate of economic development and the change of Price Index,formulating accurate macro economic regulation and control policy and promoting soundand rapid development of economy.When making research on interior relations of Price Index System, this article hasestablished the VAR(2) model, has carried on the impulse response analysis, and hasunderstood the relation between each of Price Index in interior Price Index System. Thebiggest influence to the four kinds of Price Index speed-up are all GR_CPI(-1).Thisexplained the important relation between CPI and national economy and the people’slivelihood. The CPI and RPI changes in trends is clearly lagging behind PPI and MPIchanges in trends, which also reflects the existence of the law of price transmission.Since then, in order to research the relationship between price index system and macroeconomic variables, the passage establishes simultaneous equation model based onmacroeconomic theory, the price transmission rules and the conclusion of VAR(2)models. It also believes that GDP growth rate drops, money supply M2growthrate drops, industrial output growth rate drops and level of wages growth ratedrops will reduce the increase of Price Index through policy simulation by scenariosanalysis.At the end of the article, first, summarize the conclusion of this analysis, and then, against the conclusion of the model, this article provides several suggestions toalleviate Price Index rising too fast from the price itself and macro-control, in order toachieve sound and rapid development of economy.