Liu Minqian

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Xiang Shujian

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Zhu Jianping

The journal *Statistics & Decision-Making* was founded in 1985 and is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, published nationwide, and ranks among the world’s top Q2 journals in terms of academic impact. Additionally, it is recognized as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a prestigious journal from Hubei Province.

Zhu Qigui

Zhu Zhongyi

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Shi Daimin

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Ping Weiying

Shi Lei

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Ai Chunrong

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Fang Kuangnan

Wang Dehui

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Wang Xiaojun

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Wang Zhaojun

Founded in 1985, *Statistical & Decision* is now under the supervision of Yangtze River Publishing & Media Co., Ltd. It is China’s most internationally influential academic journal, proudly distributed nationwide, and recognized as a Q2 journal in terms of global academic impact. Additionally, it holds prestigious titles such as a National Core Chinese Journal, a source journal for the Chinese Social Sciences Citation Index (CSSCI), a China Core Science and Technology Journal, an RCCSE China Core Academic Journal, and a featured journal of Hubei Province.

Issue No. 16 of 2020 (Total Issue No. 556)

Theoretical Exploration of Three Classical Methods in Parameter Estimation Liu Dezhi, Yu Kangxing, Li Xiaozhi K-Harmonic Means Clustering Algorithm Enhanced by Improved GWO-CV Optimization Zhang Wenyu, Zhang Qian, Yang Yuan, Liu Jia Improvements and Comparisons of QQ Plot Testing Using the Monte Carlo Method Wei Yanhua, Wang Bingcan, Zhang Yixin Estimation of Multivariate GARCH Models Based on an Improved MCD Method Liu Liping

Trend-Cycle Decomposition Estimation and Feature Analysis of China's Macroeconomic Time Series