1,720,978 research outputs found
The economic feasibility of Blue Carbon cooperation in the South China Sea region
No full textCoastal Blue Carbon is the carbon stored in mangroves, tidal marshes and seagrass meadows. There is an urgent need to protect the coastal ecosystem by developing Blue Carbon economy. In this paper, we investigate the feasibility and mechanism of the Blue Carbon cooperation in the South China Sea Region (SCSR) from an economic angle. We utilize the paradigm of Cobb-Douglas production to stimulate Blue Carbon development and mathematically prove the feasibility of such a cooperation strategy. The Shapley value in game theory is further applied, which not only confirms the reality of this cooperation but also provides an allocation mechanism of the cooperation benefits. The results suggest that there exists a profitable opportunity for the Blue Carbon cooperation in the SCSR. Further discussion and suggestions are provided in promotion of research focus on the Blue Carbon cooperation
Study on the asymmetric QRE network game simulation of the South China Sea route trade cooperation
No full textThis paper explores in depth the cooperative mechanism of the “Community of Shared Future” and its influencing factors. According to the theory of geo-economics, the trading network of the South China Sea Route (SCSR) was constructed on the basis of trade routes and weighted by trade volume. The asymmetric Quantal Response Equilibrium (QRE) model was introduced to establish a complex network game model of trade cooperation in the SCSR in order to investigate the influencing factors on community cooperation. Through simulation tests, the influence of the participants' cognitive beliefs on self-action sensitivity, cognitive beliefs about the reaction sensitivity of other participants, the proportion of initial collaborators, rewards from neighboring countries, and implementation cost of environmental barriers on the cooperation of the SCSR were investigated. We concluded that the subjective cognitive asymmetry among countries will restrict the trade cooperation of SCSR to a certain extent. Policy recommendations to promote the cooperation of the SCSR were provided based on our findings
Blockchain application in circular marine plastic debris management
Full text linkThe threat to the environment and humanity caused by marine plastic debris has aroused global attention. This research aims to explore the feasibility of applying blockchain technology (BCT) in marine plastic debris management. A case study on three pioneer recycling organizations is conducted based on secondary data. The study found that BCT can be applied to solve some of the existing challenges of marine plastic debris management. A digital token system and identity recognition mechanism based on BCT can increase the public awareness for marine plastic debris governance. The derived digital wallets and distributed ledgers can effectively replace paper documents and cash transactions in the traditional recycling chain, and minimize global impact on local economies, thus improve efficiency and safety. Also, the traceability and high transparency of blockchain and the application of smart contracts can effectively build a global recycling network. In addition, the application of BCT can greatly improve the transparency of recycling value chains, and make them more accepting of supervision from society and consumers. This research is one of the first studies on BCT in marine plastic debris management and explores worldwide pioneering companies. In practice, this study can help companies analyse the defects in their own waste disposal models and help practitioners make decisions to adopt BCT. In academia, as one of the early exploratory studies on the application of BCT to the treatment of marine plastic debris, this study provides further empirical reference on BCT based business models and recycling chains, and can guide future research in this field
The political influence pattern of the “Eurasia central region”based on Syria and Ukraine events
No full textDue to geopolitical factors, Eurasia is at the center of gravity in international relations and has become the core area of the game of great powers. Focusing on the Syrian and Ukrainian issues, we conduct event research by looking for relevant literature and news materials, and organize and analyze the theme of international organization meetings dedicated to solving these two issues. By creating complex networks, we use quantitative data to analyze the geopolitical forces in central Eurasia and reflect the evolution of the political landscape in the region. We have found that: First, Eurasia is still the center of geopolitics in the world, and the status of land-powered countries will rise. Second, the geopolitical structure of the Eurasian center has begun to take shape as a quadrilateral relationship between the United States and its Asia-Pacific allies (Japan and Australia), the European Union, Russia, and China. Third, the political influence of the United States in Eurasia is declining and its hegemonic status is weakening. China’s political influence has gradually increased, and Russia’s geopolitical influence has declined significantly. The study, on the one hand, clarifies the evolution of the political landscape of the region and gives the reader a clear idea of the involvement of geopolitical forces. On the other hand, it provides some guidance for the future development of the Eurasian countries, especially China
The game simulation of “The Belt and Road” economic and trade network based on the asymmetric QRE model
No full textThis paper introduces the asymmetric Quantal Response Equilibria (QRE) network game model to explain the influencing factors on the cooperative behavior of ʺThe Belt and Roadʺ countries. The findings suggest that the belief in the sensitivity to own payoff and counterparts, the reward for cooperation by neighbor nodes, the trade facilitation index, and the reduction rate of tariffs were incorporated to have a significant impact on the Belt and Road cooperation. Our findings provide important policy references to the belt and road countries
Research on cooperation mechanism of marine plastic waste management based on complex network evolutionary game
No full textMarine plastic waste pollution affects the stability of the marine ecosystem, inhibits the sustainable development of the blue economy, and threatens the health of humankind. In order to build a stable and long-term international cooperation mechanism in marine plastic waste, this paper takes the country as the research object and propose an international marine plastic waste cooperation network. We introduce the "Matthew effect" of network connection and relationship cost into the model from the perspective of social relations, and uses the method of the evolutionary game on complex networks to construct the evolutionary game model of marine plastic waste treatment. Through simulation methods, this paper explores the impact of economic factors, relational structure and game structure on the evolution of management cooperation of marine plastic waste. It not only provides a theoretical basis for international cooperation in marine plastic waste management, but also provides a clear direction for its implications in practice. Based on the theoretical analysis and empirical research, this research finds that: First, in management cooperation of marine plastic waste, economic factors are the most direct factor, relational structure plays a regulatory role, and game structure is an intermediary variable. Second, the benefits and costs of governance cooperation in economic factors promote and inhibit the cooperation behavior of group respectively. Relationship structure has a two-way effect on the cooperation behavior of group and network stability. Moreover, the cumulative income weight in the game structure is positively related to the partner density. Finally, the key to the current cooperative governance of marine plastic waste is to build a stable and long-term market mechanism, properly handle the influence of major powers, regulate the governance relationships, and promote international cooperation in marine plastic waste management
Study on the propagation of sustainable development concept among Gulf ports based on complex network
No full textThe development of the Gulf ports group has brought challenges to the marine environment and global climate change. Deconstructing the propagation mechanism of the sustainable development concept among the Gulf ports group will help to provide a new perspective for the ports governance in the Gulf region. This paper constructed the ports relationship network of Gulf region with the method of complex network, established the propagation model of sustainable ports concept, and simulated the model. The results suggest that: the relationship structure of Gulf ports group affects the spread of sustainable development concept, and the political conflicts, complex interest structure and randomization of ports network in the Gulf region will hinder the spread of sustainable development concept to some extent; the enhancement of ports’ sustainable development competitiveness in Gulf region can effectively promote the spread of sustainable development concept, and the increasing pressure of international regulations on sustainable development and regional consensus will make ports more receptive to the concept of sustainable development
The propagation of sustainable fishery by Arctic shipping route stakeholders
No full textThis research addresses the question of how to better disseminate the concept of sustainable fishery along the Arctic shipping route. The fishery trade network of Arctic is constructed and the complex network theory is applied to conduct the analysis. We further simulate the network by introducing three factors, namely, national will, knowledge absorption capacity and initial propagation node and applying the SIR (susceptible–infective-removed) model. It is found that, in order to disseminate the sustainable fishery concept in the Arctic shipping route, there is a need for countries to increase their national will, increase their capacity to absorb knowledge, and give full play to the role of high-node countries. This paper theoretically suggests three countries of Norway, Denmark, and China to act as initiators of the network and proposes possible measures that countries can take to cooperate on sustainable fisheries development. Our findings offer a useful reference on international arctic fishery cooperation
The evolution of the port network along the Maritime Silk Road: from a sustainable development perspective
No full textThis paper explores the evolution of the port network along the Maritime Silk Road (MSR) motivated by the need for sustainable development. First, considering the influence of sustainable development on the attraction of ports, we optimize the AB model, a generator based on connectivity. After this the evolution simulation is carried out based on the data of 55 major ports along the MSR. The results of evolution simulation show that, due to sustainable development, ports in Southeast Asia and South Asia are expected to become the core nodes in the network while the status of China's ports in the network will decline significantly. The results further show that the frequency of nodes close to the mid-value increases significantly and that ports currently under construction, such as Melaka Gateway, Hambantota and Gwadar, will have an important impact on the network structure. This study serves as a useful reference for port development along the MSR from a sustainable development perspective
Research on the cooperative network game model of marine plastic waste management
No full textMarine plastic waste pollution damages the stability of the marine ecosystem and inhibits the sustainable development of the "blue economy", which has aroused widespread concern worldwide. Nowadays, cooperation on marine plastic waste management is an urgent research topic. A global consensus on management cooperation is emerging, but the economic feasibility of cooperation has not yet to be proven. This paper takes the amount of capital investment, technology level of governance and the amount of marine plastic waste to be treated as variables affecting the cooperative income to construct a cooperative network game model for marine plastic waste management from the perspective of economics. The paper distributes benefits based on the "Myerson value", analyzes the equilibrium conditions of the model and tests the stability of cooperation. In addition, numerical analysis is carried out using actual data from key countries to demonstrate the practical economic feasibility of cooperation in marine plastic waste management. The findings include: (1) The technology level of governance and the amount of marine plastic waste to be treated have a negative impact on the country's choice of cooperative governance strategies and the stability of cooperative alliance, while the amount of capital investment is conductive to it. (2) The size of the alliance has an impact on country's strategic choices and the stability of the alliances. Too small an alliance is not conducive to cooperative alliance building, which gradually becomes more likely as the size of the alliance increases, but it is uncertain the effect of oversized alliance and what size is most appropriate. (3) Cooperation in marine plastic waste management is economically feasible at both the theoretical and practical levels. (4) Encouraging technological innovation to improve the governance level, implementing extended producer responsibility measures to shift the management cost, exerting the positive influence of key countries to promote the stability of the alliance, and establishing a reasonable interest adjustment mechanism to coordinate the interests of all parties are helpful to build a stable and efficient cooperation alliance and improve the economic feasibility of marine plastic waste management cooperation. This paper not only provides theoretical support for the global cooperation of marine plastic waste management, but also proves the feasibility of practice and points out the direction for its practice.</p
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