Research Of Several Questions On Modern Index Theory And Practice

The index theory and the practice research belongs to one of traditional economical statistics topics, It has been widely paid attention since long ago. The index theory contains the main branch includes: stochastic index theory, axiomatic index theory, as well as economic index theory; the index practice mainly includes: the consumer price index (CPI), the producer price index (PPI), the import price index, the export price index, the retail price index, GDP deflator, housing price index, as well as purchasing power parity index(PPP), and so on.This article research contains: firstly, systematically inspected stochastic index theory; axiomatic index theory as well as economic Index theory; separately demonstrated these theories in the practice application situation, and given the summary appraisal; secondly, unified the index theory and the CPI establishment objective request, to choice the most superior elementary price indices and the higher level indices in CPI; finally, applied the index theory and the practice research achievement to China CPI establishment, to consummate the CPI application goal.This article is divided into six chapters: Chapter1, A brief investigation on the origin of index theory; Chapter2, Comments and analysis to stochastic index theory; Chapter3, Systematic study on index test theory; Chapter4, Study on the economic index theory; Chapter5, Adjustment of product quality change in CPI and optimal index options; Chapter6, Analysis to the compilation of China's CPI. The first four chapters focus on the theoretical study of index, the after two chapters focus on the index applications (especially China's index practice) inspection. Of course, the index theory and practical problems that have been closely linked, and the modern index theoretical and practical problems are mostly have profound historical origins and traditional accumulation, this study would appropriately reflect these intrinsically linked.The paper innovations embodies: firstly, detailed assess the results of three main index theory school, by analyzing the foreign literature; secondly, pointed out the limitations of true cost of living indexes, which hardly explain the complex and changeable economic phenomenon; thirdly, pointed out that true cost of living indexes theory only considered commodity price fluctuations, but ignored the level of real wealth constant; fourthly, through analysis, negated the index formula rating method of the weighted stochastic index theory.