The Research On China's GDP International Comparison Methods

With economic integration trend of the world is remarkable day by day, the question that we care about most is what situation GDP is in and how it change over time which can reflect the economic comprehensive strength of our country. According to the international comparision result of GDP, the World Bank can determine whether to grant the loan on favorable terms or not. International organizations such as the United Nations etc. decide how to distribute international support and share burden, the policymakers make politics and economic policy auxiliarily. So there are important realistic meanings to study the GDP international comparison method system of our country.This text introduces several GDP international comparison methods briefly at first. Then state the function of impact on economy, politics of our country of correct estimation of the international comparision result of GDP. Establish the necessity of research on GDP international comparison method of our country deeply.Secondly, do systematic appraisal on the method of traditional exchange rate and purchasing power parity, point out the advantage and limitation of the two methods. And appraise to the prospect of using on this basis of applications. Then have empirical comparison research on the difference of results between two methods. Find that exchange rate method underestimate to GDP of our country to some extent, while the purchasing power parity method over-evaluate to some extent.And the otherness is distinct gradually. So bring the queries about the international comparision result to two kinds of methods. But because the method of purchasing power parity is an optimum international comparision scheme up until now. Then think of proposing perfecting the methods of purchasing power parity in our country and advance its use in our country progressively.For the limits of condition, before our country establishes the system of sound ICP, estimates out rational purchasing power parity index. We need to propose several kinds of adjustment methods according to the concrete conditions and application of the method of exchange rate and purchasing power parity in our country. The article analyses various kinds of methods through empirical research and comparison.Then it finds that the result of market index method is more rational and steady. Based on the methods of exchange rate and purchasing power parity, finally get "rational value"ofChina's internaitonal comparison GDP.