Focusing on energy supply tensions, we establish models for the design of interruptible energy contract under three information structures. The impacts of relevant factors on the optimal interruptible contract and peak shaving input level and benefits of the supplier are studied. Contract distortion, information rent and information value are discussed. The results indicate that the interruptible contract can motivate industrial users to participate in energy peak shaving, and the supplier prefers to choose industrial users with stronger interruption capabilities and higher peak shaving efficiency and externality. Asymmetric information will not only cause industrial users to reduce peak shaving input level, but also distort optimal interruptible contract. Industrial users can only obtain information rent from interruption capability. When peak shaving efficiency of industrial users is high and the externality of peak shaving auxiliary service reaches a certain threshold, the supplier can obtain higher information value by collecting industrial users' private information related to interruption capability.

Urban parking has become a problem restricting urban governance, the solution of which is to commercializing urban parking. Commercialization of urban parking should be done through supply side reform of urban parking with definition of the role of government, market and society. The increase of parking supply can be realized through government mechanism or the market mechanism. But it is necessary to ensure market mechanism plays an active role in resource allocation in promoting market supply of parking resources. Commercialization of professional parking resources needs a good investment environment to encourage private capitals. It is necessary to formulate a reasonable price system conducive to the allocation of parking resources in time and space with return of investment and operating profits of private capitals as the incentive mechanism.

Since the 18th National Congress of the CPC, China has made historic achievements in Party construction and clean government, but grassroots corruption has not been completely eradicated, and the reform of grassroots corruption governance model is urgent. The big data technology is driving great changes in the governance structure and governance capacity of the country and grassroots society. "Internet + supervision" is a successful combination of technology and governance and tackles the major problems in corruption governance at grassroot level and helps avoid governance risks due to information asymmetry, inadequate governance at grassroot level, and interference of the acquaintance society. With technological support of the "Internet + supervision" model, the grassroot government has can empower people "direct supervision" and implement the practice of "transparent administration". This process is not only the shaping of the organization by technology, but also the absorption of technology by the organization, and more importantly, the recognition and support of the people to the organization. The efficient interaction among the three factors jointly promotes the reform of corruption governance at grassroot level.

The experience of the Party's centenary struggle and the major achievements show a clear internal context:"advancing the sinicization of Marxism in the times" is the weapon for the CPC's century-old achievements. "Correctly grasping the principal contradiction and the central task of society" is the only way for the CPC's century-old achievements. "Attaching importance to strategic issues" is the key measure for the CPC's century-old achievements. "Preserving the Party's true nature as a Marxist party" is the fundamental guarantee of the CPC's achievements in the past 100 years. It is of great value to clarify why our Party was successful in the past and how it can continue to be successful in the future.

Since the 18th National Congress of the Communist Party of China, the research results of domestic academic circles on the ideological leadership have become increasingly abundant. By sorting out the main research trends in the academic world, we found that scholars have conducted extensive researches on the origin and basic connotation of the concept of ideological leadership, on why ideological leadership is necessary, on the difficulties it faces, and on the practical paths. These studies, problem and practice orientated, have made certain theoretical contributions to follow-up researches. However, in the study of ideological leadership, the academic community still needs to further clarify related concepts and theoretical origins, to strengthen empirical researches on the basis of theoretical concerns, to expand international perspectives on the basis of analyzing the basic experience gained in China, and to take international perspectives in researches on China, and to do researches beyond existing disciplines so as to lay a more solid foundation for consolidating ideological leadership.

When China is at the starting point of its the new journey of development and practice in the next century, Xi Jinping expound the idea of "five only paths". Theoretically, historical materialism, the Party's innovation theory and Chinese excellent culture constitute the generative basis of the "five only paths". Historically, the "five only paths" inherit from the process China developed from chaos to regulation since the birth of the Communist Party of China, from the process from regulation to governance since the founding of new China and from the process from governance to strength since the 18th National Congress of the Communist Party of China. Practically, the realization of the great rejuvenation of the Chinese nation, the construction of a long-term ruling Marxist party, and the China' s contribution to the world in comparison with the West constitute the contemporary significance of "five only paths". The "five only paths" is a summarization of Xi Jinping's theories and practice on the governance of China. It is a groundbreaking and forward-looking statement that will help China-style modernization make steady progress.

“Red resources” bear witness to the arduous and glorious of struggle of CPC's and are the most precious spiritual wealth of the Party and the nation. Xi Jinping's exposition on "passing on the tradition of revolution for generations" provides the fundamental guidance and direction for making good use of "red resources" in the new era. From the dimension of ideological implication, it exhibits the communists' firm belief in the revolutionary ideal and their patriotism of being loyal to the party, and highlights the CPC's political nature of serving the people, and revolutionary tradition of perseverance and diligence. From the dimension of value implication, Xi's exposition adheres to and develops the methodology of Marxist philosophy and transforms and extends the wisdom of China's traditional culture, providing scientific ways for the practice of governance and administration. From the dimension of practical implication, it directs specific paths for fully using the resource of talents in the new era, protecting physical resources and promoting the spiritual significance of the "red gene".

Time as a philosophical category has long been concerned by people. Marx understood time from practice and regarded it as human's active existence, development space and life scale. On this basis, we analyze and reveal the exploitative nature of the capitalist mode of production on time. In the context of today's digital capitalist relations of production, there is a new alienation of human active existence, blurring the line between labor and leisure. The development space of human is further compressed, and the one-sided emphasis on the current consumption concept dissipates the scale of life, which reflects that the time exploitation of digital capitalism is further aggravated. In response to the global expansion of digital capitalism, we must vigorously develop digital economy to expand development space, constantly improve the national governance ability to overcome digital alienation, and strive to change the subject's concept of time to construct the scale of life, so as to transcend the logic of capital time exploitation and restore free time to the people.

Article 1217 of Civil Code clarifies that the liability for damage in free riding as the liability for motor vehicle traffic accidents. According to this, offering free riding is of the nature of a tort, rather than just good intentions to transport others free of charge. The rule of reducing driver's liability for damage in free riding traffic accidents originated from foreign legislation, but has been abolished with the popularity of motor vehicles, the development of liability insurance and the strengthened protection of the rights and interests of the injured person. The legislative purpose of the Article 1217 is to encourage people to help each other, but it ignores the change of legal environment outside China. The basic requirements of corrective justice have not been met in terms of protecting of the injured person, and the core socialist values are not upheld entirely. The legitimacy of Article 1217 should be strengthened by limiting its application in the field of compensation for mental damage, and a corresponding insurance and social security system should be established.

The Civil Code establish the significance of the mode of "joint signing of community debt", but scholars disagree about its legitimacy and applicability. Theoretically, the dispute over the legal norms of "joint signing of community debt" by both spouses in China stems from the positive and negative views on the moral, economic and necessity aspects. In judicial practice, there exists an imbalance between litigation rights and substantive rights in norms of "joint signing of community debt" by both spouses. Therefore, the "purposive intervention mode" in which the state selectively intervenes in the internal behavior of the family has legitimacy in the activity of optimizing the normative function of the "joint signing of community debts" by both spouses. On the one hand, the "purposive intervention mode" requires that the optimization activities be guided by "consequentialism";on the other hand, it requires progressive promotion in tackling the morality bottom line, failure of family adjustment function, and dissolution of the marital community and awakening of awareness of individual rights.

According to Article 1240 of the Civil Code, if it can be proven that the damage is intentionally caused by the victim or the victim is grossly negligent for the occurrence of the damage in a high-voltage electric shock infringement case, the liability of the operator of the high-voltage electric facility may be exempted or mitigated. Among the reasons for exempting high-voltage facility operators from the liability, the victim's intention includes direct intentional and indirect intentional. But in practice, there are no uniformed criteria for victim intention identification, or for determining whether the victim constitutes an intention, or for identifying the boundary between the victim's intention and negligence. We hold that victim intention cannot be determined only on ground that the victim has committed an illegal act. The degree of victim fault should only be judged according to the level of the breach of duty of care within the scope of the victim's fault unless there are special reasons. The victim's premeditated self-injury or suicide, ignoring obvious warnings and others' dissuasion should be considered victim intention.

In the metaverse era, the rational use of a new round of information technology revolution can drive the innovative development of ideological and political education, and the changes of the times also require the initiative to adapt to the arrival of the new era in ideological and political education. The innovation of ideological and political education in the metaverse era should aim at the intelligent integration of the content of ideological and political education, the intelligent development of ideological and political education practice, and the intelligent improvement of the elements of ideological and political education. We must clarify the technical boundaries of ideological and political education, and respond to the requirements of the innovative development of ideological and political education in the metaverse era, so as to truly realize the coordinated advancement of data intelligence and educational wisdom.

The 20th National Congress of the Communist Party of China called for "strengthening the cultivation of officials' fighting spirit and fighting ability". The 100-year history of the Communist Party of China is a process of constantly forging the fighting skills of officials in the practice of struggle, making them adequate to shoulder the mission and to accomplish the mission. In the era of the new democratic revolution, a revolutionary team that is loyal, good at fighting and not afraid of sacrifice was forged;in the era of socialist revolution and construction, we forged a construction team with both political and technical skills;in the era of reform, opening up and socialist modernization, we have forged a team of pioneer that kept pace with the times with a firm stand;in the new era of socialism with Chinese characteristics, we have forged a team of pillar talents that can shoulder heavy responsibilities. Four major experiences can be drawn from the course of forging leading officials' fighting skills by the Party:upholding the Party's leadership and setting the right direction of fighting, grasping the main contradictions and clarifying the fighting tasks, respecting scientific truth and mastering the laws of struggle, paying attention to practice and fighting methods, which have important reference significance for leading officials to continuously enhance their fighting skills in the new era.

The great spirit of "people's life first, national solidarity, sacrifice, respecting science, and a sense of mission for humanity" has solid historical materialism grounds and rich historical materialism implications. The spirit of "people's life first" is the embodiment of adhering to the people-centered principle. The spirit of "national solidarity" is the fruit of the principle that the economic foundation determines the superstructure and the Marxist theory of social and historical forces. The spirit of "sacrifice" is an evidence of the necessary ideological and cultural conditions on which the people create history, and of strong dynamic reaction of social consciousness to social existence. The spirit of "respecting science" is the theoretical essence and methodological requirements of seeking truth from facts, and the proof that science and technology are an important driving force for social development. The spirit of "sense of mission for humanity" is a vivid display of Marxist theory of world history and the concept of a community with a shared future for mankind. Practicing the great spirit of combating the COVID-19 epidemic is of great significance to China and the world.