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All Journal Jurnal Statistika dan Matematika (Statmat) Jurnal Ilmiah Matematika Annals of Mathematical Modeling
Jian Xin
Guangxi Normal University
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Mathematics Other

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Empirical Analysis of Shanghai Stock Exchange Index Based on ARMIA Model and Neural Network Model Jian Xin; Weizhang Lai
Jurnal Ilmiah Matematika Vol 8, No 1 (2021)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/konvergensi.v8i1.20850

Abstract

 Stocks are an important part of the national economy. With the increase of liquidity in people's hands, more and more people choose to enter the stock market. In stock investment, accurate prediction of stock price index is not only of great significance to investors, but also of promoting the development of my country's stock market. It even has an important role in accelerating my country's economic development. The paper chose the ARIMA method based on linear technology for time series forecasting and the NN model that is good at mining the implicit nonlinear relationship in the data to compare the China Sea Securities Composite Index from January 21, 2020 to December 31, 2020. Empirical analysis of closing prices and short-term forecasts are made.
AN EMPIRICAL ANALYSIS OF THE RELATIONSHIP BETWEEN FIXED ASSETS INVESTMENT AND ECONOMIC GROWTH IN GUANGDONG PROVINCE Jian Xin; Donglan Bao
STATMAT : JURNAL STATISTIKA DAN MATEMATIKA Vol 3, No 2 (2021)
Publisher : Math Program, Math and Science faculty, Pamulang University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/sm.v3i2.11488

Abstract

Based on the two sets of time series data of Guangdong Province’s GDP and fixed asset investment from 1990 to 2018, this paper establishes a VaR model, uses co-integration test, Granger causality test and other methods to conduct empirical analysis to study Guangdong’s fixed asset investment The relationship between economic growth. The analysis result shows that there is no long-term equilibrium relationship between fixed asset investment and economic growth in Guangdong Province. However, fixed asset investment is the Granger reason for economic growth, that is, fixed asset investment has a one-way effect on economic growth, and it can significantly promote economic growth. Economic Growth. In addition, a standard shock to the growth rate of fixed-asset investment has a relatively large impact on GDP, which also shows that fixed-asset investment has a certain role in promoting economic growth.
Research on Regional Economic Development of Guangxi Based on Multiple Statistic Analysis Jian Xin; Weizhang Lai
Annals of Mathematical Modeling Vol 3, No 1 (2021)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/amm.v13i1.113

Abstract

Economic development is a prerequisite for social stability and development. However, the regional economic development in various regions of our country is unbalanced, especially in the western region. As one of the minority autonomous regions in western of my country, Guangxi Province is undoubtedly of great practical significance to study its regional economic development. In this context, this paper is based on 8 economic indicators and related economic data of 14 cities in Guangxi Province in 2018, and is based on the theory of dimensionality reduction methods and cluster analysis, using principal component analysis (PCA) and hierarchical clustering methods to assess the comprehensive level of Guangxi’s economic development. The result shows that most cities' economic development in Guangxi Province is great. However, there are signature differences in economic development between urban areas.
Co-Authors Donglan Bao Weizhang Lai