0ResearchAdvancesofSocialSecurityProblemsinChina
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【Abstract】This article summarized the research progress and characteristics of Chinese social security issues from 2000 papers， which record in CNKI. We find that， the topic in the field of social security is board and dispersion. Due to the huge system and complex problem of social security， there is no central theme. Through cluster analysis， multi dimensional scaling analysis and social network analysis， we got the high frequency keywords atlas. Then， we summarized the research topic to six parts. They are rural social security， urban and rural social security co-ordination， vulnerable group social security， social security fund management， the social insurance system， and social security system and government responsibility. It summed up the theme of the module， meanwhile， combined the practice analysis.
【Key words】social security； domestic； citationanalysis； visualization
Social security is a newly emerging multi-interdisciplinary field， which is at the application level. As a basic social and economic system in modern countries， the perfection of the social security system is closely related to China's reform， development and stability. In the period of China's economic transformation， how to examine the current situation of social security， the level of social security research is an important indicator to measure the level of its development. Then what is the characteristics of Chinese social security research in different historical development stages， what is the correlation between theoretical research and practical development， all these questions have certain significance to the development of theory and reality. On the basis of the above background， this paper carries on the literature quantitative analysis to the research of the social security field since 1989 by using literature analysis method； explores and studies the law in the content through the key words from Internet； summarizes the research trends in the field of social security in China， and puts forward suggestions on the future social security research
I. Visualization analysis of research contents
Social security is a new research field based on the application level， which is built on the basis of interdisciplinary， compared with the mature research paradigm of developed countries， China's social security research is accompanied with the development of China's social security system construction and reform， and it has made some progress in twenty-five years. Based on descriptive statistics， it uses multidimensional scaling analysis and social network analysis to study the change of the content of social security in our country through the subject terms.
Core research content and its interpretation
On the basis of the overall grasp of the social security field， we find that the research in this field is concentrated in six aspects. Among them， rural social security， urban and rural over planning of social security and social security of disadvantaged groups are particularly concerned. Then， this paper will carry out specific analysis on these three aspects.
1. Rural social security
At present， our country’s farmers enjoy the basic pension insurance and basic medical insurance. It is the security that “elderly will be looked after properly” based on no tax farming. As early as in 1990s， some scholars have pointed out that China's rural social security system was failed to fully reflect the nature of China's socialism.
2. Urban and rural overall planning of social security
Urban and rural overall planning of social security is to achieve effective links between urban resident pension and medical insurance in policy and system， such as new rural cooperative medical system and urban resident medical reimbursement system carry out unified management and unified service， including policies， charges， drug catalogs and insurance coverage， etc. The special social system of our country determines that the social security system of urban and rural areas is different， and it presents the characteristics of diversification and regionalization. In view of this topic， the scholars' research focuses on the following aspects： how to choose the basic pension and basic medical model； how to build a multi-level social security， how to get rid of medical insurance debris and realize network integration， how to reduce the gap between urban and rural areas of the lowest social security
II. Research arguments and resonance
As China's social security system is still in the stage of exploration and development， there are also some theoretical issues in the academic debate， on the one hand， it shows that the research of social security in China is developing towards a deeper level， on the other hand， it also shows that the social security system in China needs to be further improved. Through literature analysis， it summarizes the three issues in the academic circles， which are social security and social welfare； efficiency and fairness， as well as urban and rural dualistic structure and multi-level structure.
1. Social security and social welfare
Throughout the social security research， it is found that the connotation of social security and social welfare has a fuzzy boundary， and the connotation and extension of the two are different to some extent. International social welfare is considered as a system arrangement to achieve a high level of social welfare state， including the social security system. The basic social security system in our country is beneficial； basic pension insurance and basic medical insurance are the benefit of the people. On the basis of these， there are some complementary pension and medical insurance， such as critical illness insurance， enterprise annuity and so on. So it can be said that the social security and social welfare both have crosses， security is “timely assistance” welfare is to“make it even better”.
2. Efficiency and fairness
Discussion on efficiency and equity issues has been a hot topic in the field of social security research. From welfare economics to Keynes's theory of social security， it is advocated to discuss the issue of social security from the perspective of fairness. Maintaining social justice is the core idea of the social security system， and the promotion of efficiency is the natural attribute of the modern social security system. Before the reform and opening up， China has always put “social fairness” in the first place. Many scholars advocated making the “cake” bigger first so that everyone could have a piece of it.
3.Urban and rural dualistic structure and multi-layer structure
Social security is an important tool to adjust income distribution. Scientific and reasonable social security system can reflect the nature of fairness， justice and mutual benefit. The current mode of social security is still in dispute， the lost-land peasants and migrant workers and other special groups get a higher degree of social security concerns， but old-age social security has not yet attracted enough attention. In addition， current academic circles more carry out transverse analysis， lack of longitudinal analysis. It is hoped that the bibliometric analysis can bring enlightenment to the domestic counterparts， carry out a more comprehensive research and draw more meaningful conclusions by combining with the current policy of social security in China.