This paper aims to clarify the research achievements of China’s digital economy, tap into hot topics and frontier research, and identify the shortcomings of existing research by summarizing the development of digital economy research in China, thus providing reference for further research. Visual analysis is made on 1339 papers whose title involves “digital economy” in CNKI via CiteSpace. The results show that the research on digital economy in China started in 2000, and has been increasing rapidly since 2017. The number of papers is expected to maintain a high level of growth. Meanwhile, cooperation between researchers and institutions is weak. The research directions mainly fall into four fields, theoretical research, empirical analysis research, digital and real economy research as well as digital economy and taxation research. Future research on digital economy in China should be further deepened, the quantity and quality of research results should be improved, research perspectives should be broadened, and interdisciplinary research should be conducted.

The impact of green finance and fintech on high-quality economic development is empirically examined. Using data from China’s 30 provinces and cities from 2011—2019, panel regression analysis was used to study the relationship among green finance, fintech and high-quality economic development. It is found that green finance comprehensively promotes high-quality economic development through its positive impact on ecological environment, efficient economic development, innovative development and industrial structure optimization. Furthermore, fintech has enhanced the positive impact of green finance on innovative development, efficient development and industrial structure, but in the process of green finance affecting green development, fintech has failed to show the expected regulatory effect. Based on this conclusion, corresponding policy suggestions are put forward, including strengthening the top-level design of green fintech, actively developing green fintech, and using technological means to improve risk supervision and control ability in the field of green finance.

Digital transformation of the economy is an important symbol of the current industrial revolution, in which artificial intelligence is the key driving force for the development of the digital economy. While promoting the high-quality development of the manufacturing industry, intelligent production also brings opportunities for expanding service exports. Taking the number of industrial robots installed as an indicator reflecting the degree of industrial intelligence, the impact of industrial intelligence on service exports is analyzed from both theoretical and empirical aspects. In terms of theory, the installation of industrial robots is included in the Melitz heterogeneous enterprise trade model, which proves that industrial robots can directly affect the export scale of the manufacturing industry, and the importance of expanding the export scale of the manufacturing industry to the promotion of service exports from the perspective of industrial linkages, which provides a new theoretical chain for the research on the impact of artificial intelligence on service trade. On the empirical side, using the industrial robot data and the macro trade data from 2009 to 2019 of 52 countries, the empirical study found that industrial intelligence did promote service exports, and had a more significant effect on developing countries and productive services. The results remained stable after testing robustness and processing endogeneity. The mechanism test showed that the export scale of manufacturing industry played a positive role in the mechanism of industrial robots influencing service exports. The results provide important reference for China to promote artificial intelligence to better improve the level of service exports in the digital economy era.

Based on the pilot data in Henan province, the Decision Tree-Markov model is constructed to simulate the natural development process of health-disease-death of cardio-cerebrovascular diseases under the hypertension census management strategy, and the strategy is evaluated in terms of health economics according to the cost-utility analysis method. The research shows that the strategy effectively increases the proportion of healthy people, reduces the proportion of people suffering from cardio-cerebrovascular diseases, and significantly reduces the mortality of patients with cardio-cerebrovascular diseases. The strategy has better effect on rural people, and although the strategy increases investment, it will reduce the cumulative cost in rural areas with severe hypertension problems, which is significantly economical. The analysis shows that the strategy is most sensitive to the annual institutional cost. In order to optimize the health economics effectiveness of this strategy, it is also necessary to improve the coverage of hypertension census in areas with low administrative level, improve the work efficiency of relevant institutions, increase clinical and drug investment, strengthen the construction of green channels and build relevant information platforms. 

Based on the incentive compatibility theory, the cost-model of remanufacturing closed-loop supply chain system involving carbon tax and subsidies is studied under the fuzzy market demand and recycled product quality. In order to study fuzzy factors, a fuzzy chance constrained planning method is proposed. As a discrete optimization problem, genetic algorithm (GA) and particle swarm optimization (PSO) are used to seek the approximate optimal solution of an example. The results show that under the fuzzy environment, the total cost changes; only subsidy policies or carbon tax policies are not conducive to reducing costs and carbon emissions; when the government implements both subsidy and carbon tax policies, the recovery rate is improved, and carbon emissions and total costs of the supply chain are also significantly reduced. This study will help enterprises to formulate reasonable production plans in a fuzzy environment, and also help the government to make full use of incentive compatibility theory to guide enterprises to reduce carbon emissions and improve recovery rate and remanufacturing rate.

The rule of false expression on intent is a civil rule in The Civil Code of the People’s Republic of China. In order to fit in the penetrating financial regulation reform, in the trial of financial cases, courts are increasingly inclined to apply the rule of false expression on intent to break through the external legal design of financial products and determine their legal effects by the private lending legal relationship. Through the study of the Beijing High People’s Court Final Civil Judgment (2020) No.36, this paper argues that there is a distinction between commercial acts and civil acts. It is detrimental to commerce if the appearance of commercial acts and commercial benefits are ignored. As a system in civil code, the rule should be prudently applied to the financial field. In addition, this case reflects the signs of preference of purposive interpretation theory. Courts should not ignore the priority of contextual interpretation when it is not controversial. Finally, the judiciary should adhere to a prudent position, adhere to passivity and finality, and not arbitrarily invalidate the validity of the contract. The boundary between judiciary and administration cannot be confused, avoiding substituting “policy” for “law”.

While digital trade promotes economic development, it also exacerbates the difficulty of cross-border data regulation. By summarizing and analyzing the existing data laws and regulations in China, as well as regional trade agreements and bilateral free trade agreements currently signed involving cross-border data regulation, it can be found that the construction of China’s cross-border data regulation system is still facing many difficulties, and it is urgent to seek a solution. As a core element of digital trade, data is mobile and transnational in nature, which means that data governance should be international in scope. Therefore, in order to improve the legal framework for data governance, in addition to formulating data regulation rules domestically, it is also necessary to actively engage in international cooperation on cross-border data regulation to further improve cross-border data regulation rules and promote the construction of a harmonious digital society.

Digital property is a digital resource with monetary value left by natural persons in cyberspace or mobile terminal equipment. It should be inherited in accordance with the law. The digital resource that does not have monetary value is not inheritable. The law of personality rights should be applied to protecting relatives’ interests enjoyed by family members of deceased for the sake of piousness and filial piety. The inheritance of digital property faces two obstacles: one is the user ownership of digital property actually deprived by the network platform; the other is the necessity to protect the privacy interests of users and their communication partners. The standard terms excluding users’ ownership of digital property are not included due to the failure to conform to procedural justice, and are invalid due to the obvious unfairness. Personal dignity and spiritual freedom of the deceased and his communication partners will be damaged by allowing the inheritance of digital property with privacy. As a result, the inheritance of digital property with privacy shall not be allowed without the consent of the deceased and his communication partners. 

Decriminalization has always existed in the practice of administrative law enforcement, and it essentially belongs to administrative discretion. The decriminalization disposal made by administrative law enforcement organs should meet the effective requirements of proper subject, proper authority, reasonable content, proper procedure and legal form, so as to produce corresponding legal effects in conformity to the purpose of administrative law enforcement organs. Because of the differences of effect objects, effect content of decriminalization is not the same. As to the administrative law enforcement organs, once the decriminalization disposal is made, they should be strictly bound by it, and should not arbitrarily change or cancel it without legal reasons and legal procedures. As to the counterparts, decriminalization disposal has two legal effects: incontestability and enforcement. As to other organs of power, decriminalization disposal should be respected.

 Web crawlers are widely used in the contemporary Internet society as a means of acquiring data. However, the value enriched by the data induces web crawlers to gradually alienate. Malicious crawlers contain triple risks of computer information system damage, computer information system intrusion and computer information system data leakage, and criminal regulation is necessary to them. In order to avoid the generalization of criminal crackdown, situational distinctions should be made based on the operation process of web crawlers, and the legal nature of web crawlers is analyzed according to the risk characteristics in different contexts, so as to construct the conviction path of malicious crawlers and delineate the scope of criminal regulation. When the data crawling behavior violates the authorized judgment-type technical measures, and the crawled data has infringed on the legal interests of data security and reached a considerable degree of harm, it has become malicious behavior and should be criminally regulated.

In order to identify the structure and characteristics of MBA students’ career adaptability, a sample of MBA students from a university in Yunnan Province was surveyed. It is found that MBA students’ career adaptability consists of five dimensions, namely concern, control, curiosity, confidence and cooperation; the students’ career adaptability is slightly above average; there exist significant differences of career adaptability in genders and marital status; the dimensions of control and cooperation vary significantly among age groups; curiosity and cooperation have obvious differences among different positions; concern, curiosity and confidence are significantly different in service length. Therefore, the future MBA education and practice need consider students’ career adaptability structure and characteristics, so as to promote their career development.

Course ideological education is one of the important aspects in higher education. How to carry out course ideological education in the major basic courses needs to be studied. Taking “Fundamentals of Circuit Analysis”, an important major basic course for the electronic information specialty as an example, the idea and method of the construction of course ideological education is researched. The knowing and understanding of course ideological education is firstly illustrated. Then how to combine course teaching with ideological elements is developed, including the course outline, the teaching design, the teaching implementation and the teaching team, and so on. Further, the design ideas and brief introduction are given about teaching case and ideological case of one class. Finally, the implementation effect is demonstrated by questionnaire’s results and teachers’ self-perception.