Research On Basic Data Review Methods For International Comparison Projects

The international comparison program(ICP)of the world bank obtains the actual purchasing power of each country's currency by calculating the price data and expenditure weight data of each country's specifications,so as to calculate the actual scale of each country's economic aggregate and make international comparison.The results directly affect the economic or even political policies of international institutions and countries.Specification price data and expenditure weight are important basic data,whose accuracy directly affects the results of international comparison.In the current international comparison project,there are many problems in the content and method of the price data audit of specifications used in China,including unclear understanding of the data quality connotation of the international comparison project,incomplete data audit content,incomplete audit steps,and unclear audit methods.This paper takes this as the research topic,discusses the theoretical basis and method evolution of the price data audit of the international comparison items,discusses the process and content of the data audit,and uses the price data of the domestic specification items to demonstrate the effect of the data audit,and then puts forward the possibility of improving the diagnosis of the domestic data,so as to improve the attention of the data audit research of the international comparison items in China ?Based on this,the structure of this paper is as follows: the first chapter is the introduction.This paper mainly expounds the research background and significance of this paper,makes a literature review,briefly describes the content and research ideas of this paper,and summarizes the main contributions and shortcomings of this paper.The second chapter is the main category of data audit.In this chapter,the concept of data quality,data audit principles,data audit process and data audit methods of ICP are systematically reviewed.The third chapter mainly introduces the early data audit table-Quaranta table.Starting from the composition of the table,this chapter gradually introduces the eks method and other methods used in the table audit,analyzes the advantages and disadvantages of the table,discusses the parts that can be improved in the current data audit,and explores the role that the table can play in the data audit at present.The fourth chapter is the key chapter of this paper.It mainly introduces the data review table dikhanov used in the current international comparison project,including the brief description of Dikhanov table,the analysis of advantages and disadvantages of Dikhanov table and Quaranta table,elaborates the data review method cpd method used in this table,introduces the extension method of CPD method,such as cprd method,cpd-w method,etc.,and the future development direction of CPD method brief introduction.The fifth chapter is the empirical part,which is also the most important chapter of this paper.In this chapter,we use the dikhanov table to take the price data of China's specifications as an example.First,we have a visual display of the data.On this basis,we have a purchasing power for the data before the data audit Parity,PPP)calculation,and then according to the audit steps,comprehensive use of CPD method,dikhanov table,etc.to audit the data,andonce again carry out PPP calculation,and finally compare and analyze the results of the two.The sixth chapter is the conclusion and suggestion part of this paper,mainly discusses the conclusion and improvement ideas of this paper,and expounds the problem of data audit of China's ICP from the macro and micro level,and then gives the corresponding suggestions.The main conclusions of this paper are as follows: 1.Data review can effectively improve the accuracy of PPPs;2.Problem data can not be eliminated at will,but should be checked repeatedly;3.The PPPs calculated after data review reflect the huge differences between different regions and categories of PPPs in China;4.The data review of education and medical specifications is difficult,which makes it difficult to verify the PPPs The impact of parity is unknown.The contributions of this paper are as follows: firstly,the concept and method of data audit of the international comparison project are discussed comprehensively,and the content and operation process of data audit of the international comparison project are expounded systematically;secondly,the method of data audit of the international comparison project is verified by using domestic data,which proves that the method of data audit of the international comparison project is carried out internationally in China Third,different from other literatures,this paper classifies the PPPs of all kinds of specifications according to their calculation methods.Combined with the previous research and my statistical work experience,this paper explains the specific problems that different kinds of data may encounter,and puts forward innovative ideas for improving the data audit work,which is the next step for our country The data quality of China's ICP can be effectively improved by providing more specific guidance for the round of data survey and data review.The shortcomings of this paper lie in: the specific content data has not been audited,such as the price data and expenditure weight data of the ICP specifications in the healthcare category;some theories and methods in the ICP specifications data audit have not been further analyzed.