文献类型：期刊文献

英文题名：Paradox in deviation measure and trap in method improvement-take international comparison as an example

作者：Qiu, Dong[1];Li, Dongju[2]

第一作者：Qiu, Dong

通讯作者：Li, DJ[1]

机构：[1]Jiangxi Univ Finance & Econ, Sch Stat, Nanchang 330013, Jiangxi, Peoples R China;[2]Henan Univ Econ & Law, Sch Stat & Big Data, Zhengzhou 450046, Peoples R China

第一机构：Jiangxi Univ Finance & Econ, Sch Stat, Nanchang 330013, Jiangxi, Peoples R China

通讯机构：[1]corresponding author), Henan Univ Econ & Law, Sch Stat & Big Data, Zhengzhou 450046, Peoples R China.|[10484]河南财经政法大学;

年份：2021

卷号：5

期号：4

起止页码：591-603

外文期刊名：QUANTITATIVE FINANCE AND ECONOMICS

收录：WOS:【ESCI(收录号:WOS:000743192800002)】；

基金：This paper is a phased achievement of the Major Program of National Philosophy and Social Science Foundation of China (Grant No. 18ZDA123) , "Innovation Team of Philosophy and Social Sciences in Henan Colleges and Universities" (2017-CXTD-07) , and Major Projects in Basic Research of Philosophy and Social Sciences in Henan Colleges and Universities" (2019-JCZD-002) .

语种：英文

外文关键词：deviation measure; paradox; method improvement; trap

摘要：Due to the problem of "true value agnostic" in the measurement of the real world, people believe that the existing methods can be closer to the true value by improving them. Therefore, they are willing to excessively affirm the more advanced method and deny the relatively "traditional" method. Taking the exchange rate method and purchasing power parity method commonly used in international economic comparison as examples, this paper generalizes the problems revealed by the exchange-rate-deviation index and concludes that there are at least three paradoxes in the deviation measurement of different methods. These paradoxes are the paradox of behavior significance, the paradox of comparative object, and the paradox of measurement result. The reason is that there is a cautionary trap in the improvement or innovation of measurement methods in reality. Sometimes the improved method is not necessarily better than the unimproved method. People tend to prefer advanced technology and methodology, but the problem of statistical input and related statistical benefits need to be considered in practical measurement. In fact, these basic problems still exist in some of the methods of economic statistics that we regard as common sense. When learning or introducing new methods, scholars do not absolutize the existing methods and conclusions. They should pay attention to critical experience, avoid the trap of improvement methods, and seek real improvement or innovation.