Research On The Accuracy Of GDP Based On The Difference Of Different Accounting Methods

So far,GDP is recognized as the most important indicator of national economic development and a barometer of a country's economy.If we want to accurately measure a country's economic development,we need accurate GDP data.In order to ensure the accuracy of China's GDP,China has implemented a lot of measures,and achieved good results.However,China's GDP growth rate can still maintain rapid growth under the influence of the world financial crisis,this phenomenon makes domestic and foreign media and relevant scholars to doubt the accuracy of China's GDP.In the face of doubts from domestic and foreign media and relevant scholars,it is necessary to study the accuracy of China's GDP.This paper takes the difference of different accounting methods of GDP as the research object.firstly,it analyzes the principle of three dimensions equal,proves that the results of different accounting methods of GDP are equal,and puts forward the view that the smaller the difference of different accounting methods of GDP is,the higher the accuracy of GDP is;Secondly,the differences of different accounting methods of GDP are classified,and the influencing factors of the differences are analyzed.Thirdly,the cash ratio method,C-D production function,reference rate approach and user cost approach are used to estimate the influencing factors of the GDP difference between the product approach and the expenditure approach;Then,the three differences are calculated respectively,and the multiple regression model is used to quantitatively analyze the influencing factors of the GDP difference between the product approach and the expenditure approach;Finally,according to the research results of the full text,some suggestions are put forward to improve the accuracy of China's GDP.The main research results of this paper are as follows:(1)according to the estimated results,the underestimation of owner-occupied housing rentals accounts for the largest proportion of product approach GDP,followed by non-observed economy problems,financial intermediation services indirectly measured accounting problems and industrial added value data quality problems account for a relatively small proportion of product approach GDP,0.97% and 0.86% respectively;(2)comparatively speaking,the accuracy of product approach GDP and expenditure approach GDP is higher than that of income approach GDP,and there are problems with the accuracy of income approach GDP in 1994,1995,2010,2011,2012,2013 and 2014;(3)the influence degree of the influencing factors on the GDP difference between product approach and expenditure approach are as follows: financial intermediation services indirectly measured accounting problems,industrial added value data quality problems,underestimation of owner-occupied housing rentals,and non-observed economy.