Regional Economic Development Trend Prediction Method Based on Digital Twins and Time Series Network

At present,the interpretation of regional economic development(RED)has changed from a simple evaluation of economic growth to a focus on economic growth and the optimization of economic structure,the improvement of economic relations,and the change of institutional innovation.This article uses the RED trend as the research object and constructs the RED index to conduct the theoretical analysis.Then this paper uses the attention mechanism based on digital twins and the time series network model to verify the actual data.Finally,the regional economy is predicted according to the theoretical model.The specific research work mainly includes the following aspects:1)This paper introduced the development status of research on time series networks and economic forecasting at home and abroad.2)This paper introduces the basic principles and structures of long and short-term memory(LSTM)and convolutional neural network(CNN),constructs an improved CNN-LSTM model combined with the attention mechanism,and then constructs a regional economic prediction index system.3)The best parameters of the model are selected through experiments,and the trained model is used for simulation experiment prediction.The results show that the CNN-LSTM model based on the attentionmechanism proposed in this paper has high accuracy in predicting regional economies.

Progress of regional economic geography in China: a comparative study

Domestic and international literatures in economic geography in recent years showthat the disciplinary status of regional economic geography remains steay. Domesticliteratures prefer regional comprehensive development than that of international in theapplication fields. The process of establishing theoretical system with Chinese characteristocscontinues and has made some progress. The economic regions element theory, developmenttheory and management theory have been added to the already existed theory system. Theconstruction of comprehensive and integrated methodology system has initiated.

The Spatial Spillover Effect of Input and Output of Scientific Progress on Regional Economic Growth: The Case of Guangdong Province

This paper makes an empirical analysis of the spatial spillover effect of regional economic growth by using Moran’s I and Spatial Durbin Model to study the input and output of technological progress, with the panel data of 21 prefecture-level cities in Guangdong Province from 2008 to 2017. The empirical results show that the spatial autocorrelation exists in the economic development of Guangdong Province, and both the input and output of scientific research innovation have a significant positive effect on the regional economic growth. Under the spatial contiguity weights matrix, the output of scientific research and innovation has a more obvious spillover effect on the economic growth of neighboring cities than the input of scientific research and innovation.

Coordinated development of Yunnan's frontier culture and economy under the regional economic integration pattern

This paper constructs the index system by means of quantitative analysis. We choose the coordination degree of Yunnan province from 2012 to 2015. The regional cultural and economic development in Yunnan's frontier are analyzed so that we can provide the reference for the sustainable development of Yunnan's frontier and realize the coordinated development of culture in Yunnan's frontier and economic system in order. The results show that the culture and economy in Yunnan's frontier are coupled with formation of the coordinated development of culture and economy; economic development is the main reason to promote the coordinated development of culture and economy in Yunnan's frontier, and it contributes to the main force of improving the coordinated development of evolution types; the coordinated development degree of the overall level is low and still in the China's backward level.

Education Investment Fixed Asset Investment and Regional Economic Development Differences--Empirical analysis based on Chinese

In this article,it discusses the di£ferences in economic development between urban and rural areas and regions in our country from the perspective of education investment and fixed asset investment.Based on the provincial data of 31 provinces from 1999 to 2017 released by National Bureau of Statistics,it expends the Cobb-Douglas model and Lucas model,and analyses the data with multiple linear regression models.From the study,it finds that compared with investment in fixed assets,investment in education has a larger role in promoting economic development,which is more obvious in the underdeveloped central and western regions and rural areas.However,at the same time it needs to note that the positive effects of education investment will be restricted by the economic structure and policy environment,and education expenditure policies should also be implemented in accordance with time and local conditions.

A Review on China’s Transportation Development Theory from the Perspective of Regional Economics

Transportation is the lifeline of human civilization and an important component of the infrastructure for economic growth.As transportation is closely related to regional economic development,the summarization of China's transportation development theory from the perspective of regional economics will be conducive to clarifying the relationships between transportation and regional economic development and providing basic theoretical support for regional economic research and policy application.From the perspective of regional economics,China’s transportation development theory falls into two categories:transportation resource allocations,and the interactions between transportation and economic development.In recent years,there has been a trend toward the integration of transportation development research with regional economic growth,and a deeper understanding of the relationships between them has been achieved.

Special library services for regional economic development(SRED)—Practice of the NSLC

Purpose: By case studies of the service for regional economic development(SRED) carried out by the National Science Library of the Chinese Academy of Sciences(NSLC), this article tries to describe basic directions of special libraries in the SRED.Design/methodology/approach: By comparing the aims and service forms of the SRED provided by domestic and foreign libraries and information service institutions, the authors examined the basic services provided by special libraries. Through a summary of the SRED exploration carried out by the NSLC, the authors introduce its main content, service methods, products, and service mechanisms. By analyzing the information needs of SRED users and summarizing users’ practical experiences of services, the authors propose a design for the SRED framework of the NSLC. In addition, the authors mention key points to be noticed during the process of service implementation, illustrating them with a number of selected SRED cases. The authors suggest that the SRED network and joint service mechanism are effective ways to implement SRED services. Findings: Based on information resource and expert networks, special libraries like the NSLC can carry out SRED to meet user requirements. The NSLC has not only constructed its own SRED framework, but has also expanded the patron service to the industrial intelligence service area. By setting up a nationwide S&T;(science and technology) novelty search network and a literature and information service alliance, the NSLC provides a variety of information training services. This enriches the content of the knowledge service of special libraries and enlarges the library service of the NSLC.Research limitations: The SRED of Chinese libraries is still in the exploratory stage. Questions as how to scientifically design service content and service modes, and how to establish a sustainable regional service system based on user needs are still being researchedand discussed. Furthermore, we need to pay more attention to the construction of the service network and respond more quickly to feedback while creating the SRED.Practical implications: The SRED experience of the NSLC has shown that special libraries can implement a knowledge service for economic development, and the SRED is an important direction of knowledge services for special libraries.Originality/value: Through describing a practical SRED, this paper provides a valuable reference for libraries in the transformation process from library service to knowledge service. The experimental SRED of the NSLC has verified the rationality of our service framework in support of regional economic development.

The relationship between China and regional economic agreement in global value chain:An analysis based on gravity model

Global value chain has become a new and dominant pattern of international division of labor in the world.Meanwhile,international cooperation has turned from multilateralism to regionalization.This paper intends to use gravity model to explore the connections between the two trajectories.As a political and economic major power in the world,China should set about employing a comprehensive,self-oriented and well-functioning strategy of regional economic integration,either out of considerations for its global and regional strategies or the need to transform economic development model.In the process of implementation,China should be selective in choosing partners,choosing competitive ones at different levels of the global value chain.

Inter-Region Transportation Costs,Regional Economic Growth,and Disparities in China

To examine the correlation between regional economic growth and inter-region transportation costs in China,this study establishes a regional economic growth model embedded with inter-region transportation costs based on the Cobb-Douglas production function.Based on a balanced growth empirical model,this study verifies the correlation by conducting a regression analysis of the panel data of 29 provinces,municipalities,and autonomous regions from 1985 to 2015.The empirical results show that:(1)The per capita GDP growth among the three regions(namely,the eastern,central,and westem regions of China)meets a conditional convergence trend,and the decreasing of the inter-region transportation costs increases the convergence speed;(2)The per capita GDP growth is in line with the club convergence trend within each of the three regions;(3)The trend of the output elasticity of the inter-region transportation costs shows that the gradual decrease of inter-region transportation costs has a positive correlation with the narrowing of economic disparity after the year 2000,accelerating“common prosperity”across different regions in China.

Development of Pilot Free Trade Zones and Regional Economic Growth in China:Comparison on the Conducting Paths and Dynamic Mechanisms

This study discusses the effect and the dynamic mechanism of free trade zone(FTZ)development promoting regional economic growth in China from the perspective of institutional innovation,and finds as follows.(1)The identification process based on difference-in-differences(DID)testing and Bayesian information criterion(BIC)indicates that the institutional innovation of FTZs not only drives regional economic growth,but acts as one of the core factors among the many drivers.(2)The rapid development of investment and trade,as the primal core function of FTZs,is an important dynamic factor for FTZs to promote regional economic growth.It means in the macro-context of lasting and repeated China-U.S.trade frictions,FTZ development should refer to the practice of China(Shanghai)Pilot Free Trade Zone and China(Zhejiang)Pilot Free Trade Zone in aligning to high-standard investment and trade criteria,return to the origin of free trade,and actively seek policy support in improving trade openness and investment facilitation.(3)With the synthetic control method used,the study finds a wide gap in the“experimental effect”of setting up FTZs in different areas.The effect is better in coastal FTZs than in inland ones,and FTZs established later usually have less noticeable effect.On this account,FTZs in China should be positioned differently based on their characteristics of location and endowment;featured development modes should be explored to reduce homogeneous competition;development of coastal and inland FTZs should be balanced and coordinated.

Economic Regionalism: A Win-Win Option

Economic regionalism in East Asia lags far behind the quickened pace of southward thrust of the North America Free Trade Area (NAFTA) and eastern extension of the European Union. Despite aspirations for regional economic cooperation on the part of the nations concerned , differences in their stage of economic development, the burning issues facing them and varying domestic pressures against trade liberalization have resulted in insufficient urgency and driving force for

A PRELIMINARY APPROACH TO THE REGIONALIZATION OF THE MARINE COMPREHENSIVE ECONOMIC REGION IN LIAONING PROVINCE

China is a country with a vast marine territory whose area covers one third of the total land territory area. With the exploitation of marine resources and the development of marine economy, marine economic regions have been formed gradually. We shouldn’t ignore them when we divide economic regions throughout the whole nation,especially in our country. In this paper, we’ll expand division principles, practice and methods of .marine comprehensive economic region. Liaoning Province,facing the Yellow Sea and the Bohai sea, is not only a part of Round-the-Bohai Sea Economic Region, but a part of national marine econemic region. Through evaluating marine resources of Liaoning, and analyzing development of marine economy, composition of marine industries and distributional characteristic of marine economy, Liaoning marine region is divided into Bohai Sea marine economic region and Yellow Sea marine economic region based on differences of marine economy. Thereby we go further into the formation of regional marine economic region and distributional mechanism of regional marine economy.

Preliminary research on problems of northeastChina's participation in the northeast Asianeconomic cooperation

According to various factors influencing the economic openness, this paper probestentatively into the way Northeast China complies with and participates in the Northeast Asiancooperation, with perticular attention to the analysis and estimation of the advantageousgeographical condition of the extenal cooperation in Northeast China from the present situation ofdeveloping the external economy and cooperation with the adjacent countries.

The Enlightenment of Regional Spatial Structure Theory to Rural Revitalization Strategy

The rural revitalization strategy is a macro-strategic guide to solve the problem of"weak links"in the coordinated development of rural and urban regions.Geography responded positively to the national strategy and made a preliminary discussion on the scientific theoretical basis and research direction of rural revitalization strategy.The paper integrated application of the spatial structure theory of geography and the time-space research scientific thinking,respectively discussed the core edge theory,growth pole and point axis theory,theory of stage of industrialization and urbanization,rural settlement type,infrastructure construction patterns,such as the theoretical guidance and application of strategy of rejuvenating rural to rural revitalization of the full implementation of the strategy to provide theoretical support and practical guidance.

我国省域医疗卫生服务与经济的耦合协调分析

目的探索我国省域医疗卫生服务与经济协调发展状况,为促进医疗卫生服务与经济健康协调发展提供参考。方法以2012—2020年为研究区间,运用综合评价指数分析医疗卫生服务与经济综合发展水平,采用耦合协调度测算我国医疗卫生服务与经济的协调水平。结果(1)2012—2020年我国医疗卫生服务与经济综合评价指数年均增长率分别为21.03%和31.69%。其中,2019—2020年医疗卫生服务年均增长率高达36.72%,而经济年均增长率为-1.32%。从区域来看:东、中、西部医疗卫生服务综合评价指数年均增长率分别为-3.09%、-2.51%、-1.51%。经济综合评价指数年均增长率分别为-0.75%、-1.00%、-0.64%。(2)我国两子系统间耦合协调度由2012年的0.389增至2020年的0.920,年均增长率为11.36%,协调类型由2012年的轻度失调发展为2020年的优质协调。东、中、西部耦合协调度均数分别为0.64、0.52、0.47,协调类型分别为初级协调、勉强协调、濒临失调。东、中、西部耦合协调度均数年均增长率分别为-0.95%、-1.00%、-0.61%。(3)东部多数省(直辖市)除2016年为经济发展滞后型,其余年份均为医疗卫生服务滞后型;而中、西部大多数省(自治区、直辖市)除2014年为医疗卫生服务滞后型,其余年份皆为经济发展滞后型。结论从整体上看,我国医疗卫生服务与经济综合发展及其耦合协调水平均呈上升趋势。从区域来看:东、中、西部医疗卫生服务与经济综合发展水平均呈下降趋势;耦合协调水平呈东、中、西部依次递减空间格局。各区域应结合自身实际,制定医疗卫生与经济发展战略措施,提高两系统协调发展水平,以实现两系统优质协调发展。

Research on the coordinated utilization of land resource in the intergrated economic region of industry, farming and grazing-a case study of Baotou city in Inner Mongolia

Baotou City is an industrial city developed in the farming-grazing transitional zone in northern China. The development of industry, farming and grazing is very fast. It has become a typical intergrated economic region of industry, farming and grazing. Based on the analysis of utilization of land resources, this paper points out the main conflicts and problems on the utilization of land resources in the city, and puts forward a corresponding proposal.

ORGANIZING MACRO ECONOMIC REGIONS AND ENHANCING INTER-PROVINCIAL COORDINATION AND PLANNING IN CHINA

This paper elaborates upon the purpose of macro economicroponalization and inter-provincial planning and coordination under thesocialist market system. It descnbes the characteristics and orgarnzationalforms of macro economic regions and the principle of macro economic regionalization. The six macro economic regions-Northeast China, NorthChina, Northwest China, Middle-East China, Southwest China and South China-are divided in the paper. At the end, the paper describes somemajor programs, which requires cooperation among various involvedprovinces.

Spatial Heterogeneity Analysis of PM2.5 Concentration in Central Plains Economic Region

The research of the spatial heterogeneity of PM2.5 concentration in an area, is of great significance for understanding its regional spatial distribution structure, exploring the transmission relationship between regions, in order to formulate joint prevention and control measures within the entire area. Based on the daily monitoring data of PM2.5 concentration in the Central Plains Economic Region in 2019, this paper utilizes cluster analysis to divide the regional PM2.5 concentration into 5 classes, builds their spatial semi-variogram model, and then utilizes interpolation analysis method to study the regional overall distribution characteristics and transmission law. The results show that the PM2.5 concentration in the Central Plains Economic Region has a medium or higher spatial autocorrelation. The critical value of the overall PM2.5 concentration in the area is 150 μg/m3, as the overall PM2.5 concentration less than the value, the PM2.5 in a region mainly comes from local emissions, as the overall PM2.5 concentration higher than the value, the influence of spatial structure on the distribution of PM2.5 concentration is gradually obvious. PM2.5 has a certain degree of spatial transmission, which mainly includes two routes as Puyang-Xingtai and Puyang-Zhengzhou, and the transmission intensity of the former is greater than the latter.