Latest ArticlesAiming at the problem of information asymmetry among members of agricultural products supply chain, the Stackelberg game model of wholesale sales and agency sales was constructed by introducing brand building variables,and the pricing strategy and sales model selection in agricultural products supply chain were explored. The results show that under different market demands,the optimal pricing of green agricultural products is affected by the substitutability rate between the two agricultural products, and the commission rate and high market demand probability jointly affect the choice of the optimal sales model of cooperatives and e-commerce platforms. A suitable cooperative sales model is helpful for cooperatives and e-commerce platforms to achieve a win-win situation.
Safety evaluation is an important prerequisite and guarantee for the development of railway dangerous goods transportation. Taking a special railway lithium battery transportation project in Yibinm Sichuan as an example, the project area was divided into 8 evaluation units, and the safety check list method and fault tree method were used to evaluate the safety, and the main disaster control factors and safety work points were discussed. The results show that the safety checklist method is suitable for the inspection events specified in the specification provisions, and the fault tree method can effectively analyze the cause of the event and the weight of the elements through the minimum cut set and the importance calculation. The safety guarantee of transportation and loading and unloading operation should pay attention to personnel standard operation, labor protection and safe location of operation area.
Technology-based talents are an important support for the development of new quality productivity. Local technology legislation should create a favorable legal environment for the development of technology-based talents. Based on legislative texts, a comparative analysis was conducted on the chapter design, standardized objects and regulatory content related to technology-based talents in the comprehensive science and technology regulations of eleven provinces and cities. On this basis, it is proposed that local efforts to strengthen legislation on technology-based talents should be regulated in the form of a whole chapter, clarify the legislative norms and form a complete legislative system with talent work as the main content, in order to provide useful inspiration for local construction of a technology-based talent legislative system that adapts to new quality productivity.
Investment in new infrastructure facilitates green transformation of industries and promotes green economic and social development. Using panel data of provinces from 2013 to 2022, a comprehensive evaluation system of new infrastructure and green transformation of industries was constructed. Based on the coupling coordination degree model, the results indicate that the development levels of new infrastructure and green transformation of industries have steadily increased during the research period, with the coupling and coordination degree gradually evolving towards a coordinated state. The development of the new infrastructure and green transformation of industries exhibits significant regional differences, with outstanding performance in the east and lower comprehensive development in the central, western and northeastern regions. While the level of green transformation in most resource-based regions has improved, they are still lagging behind the national average level. Overall, the coupling coordination level displays a pattern of high in the east and low in the west.
The multi-stage CONWIP system is a production method that combines push and pull strategies, effectively reducing inventory costs while meeting customer demand. Focusing on the number of buffers, buffer locations and buffer capacity sizes in a multi-stage tandem CONWIP system, With the objective of minimizing the sum of buffer establishment costs, semi-finished product inventory costs, work-in-process inventory costs, and finished product stockout costs, a corresponding mathematical model was constructed. The model was solved using a genetic algorithm combined with simulation. The simulation results indicate that the inventory costs of this system are lower than the Kanban system. A new perspective and solution isprovided for addressing buffer design in multi-stage tandem production CONWIP systems.
To explore the emerging research field of cross-border e-commerce, a bibliometric approach was adopted to conduct a comprehensive analysis of relevant literature on cross-border e-commerce in CNKI. The analysis covered the publication trends of cross-border e-commerce, the cooperation among major research institutions and core authors, as well as the current research hotspots and frontier shifts. The study finds that the research process of cross-border e-commerce can be divided into three stages such as initial sprouting, vigorous development and mature optimization. During this period, although some research institutions and authors have initially formed a cooperation network, the depth and breadth of cooperation still need to be improved. The research focus has gradually shifted from topics such as cross-border logistics and the Belt and Road Initiative to areas such as the digital economy, digital trade and expanded opening up. Future research on cross-border e-commerce should focus on areas such as the digital economy, digital trade and expanded opening up, and strengthen cross-university and cross-regional cooperation to enhance the innovation capacity of research.
Based on the data of A-share listed companies from 2013 to 2022, the multi-period DID method and the central ecological environment protection inspection were used as a natural experiment to analyze the impact mechanism of the “combination of coercion and public participation” type of environmental accountability on the financialization of enterprises. The study finds that environmental accountability significantly inhibits the financialization of heavily polluting firms. Its path of action is realized through improving the quality of environmental information disclosure. Corporate technological innovation positively strengthens the inhibitory effect of accountability on financialization but does not modulate the mediating effect of information disclosure. The heterogeneity analysis shows that the inhibitory effect of environmental accountability is more significant under the high level of marketization and the strong linkage between the government and the enterprises.
Glaciers serve as indicators of climate change, and their changes in reserves and distribution have significant impacts on downstream ecology and human security. Taking A’nyemaqen mountain as the research area to study its changing characteristics, reference was provided for regional ecological environment protection and economic and social development. Using Landsat data and Sentinel-1A data to extract the area and surface velocity of the A’nyemaqen glacier, combined with temperature and precipitation data from two nearby meteorological stations in the study area, the relationship between glacier changes and climate in the region from 2014 to 2020 was analyzed. From 2014 to 2020, the number of glaciers increased from 80 to 85, an increase of 5 glaciers. The glacier area has retreated from 98.46 km2 to 86.58 km2, a retreat of 11.88 km2. The A’nyemaqen Glacier shows an overall trend of retreat, with glacier flow velocity greater at the central axis than at the two wings and gradually decreasing from high to low altitude to the end of the ice tongue. The temperature and precipitation in the research area have shown an increasing trend, with a more significant increase in precipitation. However, the glacier area still shows a shrinking trend, indicating that the amount of glacier melting is greater than the cumulative amount.
At present, Guangxi agricultural industry is facing the dilemma of large but not strong, and it is urgent to explore effective strategies for industrial upgrading and transformation in order to promote the high-quality development of agricultural economy. In order to explore the path of high-quality agricultural development in Guangxi, Wuming mandarin orange was taken as a case study to explore the mechanism and depth of its three-chain fusion. It is found that the three-chain integration effectively promoted the upgrading and transformation of the citrus industry. Under the guidance of the government, Wuming mandarin orange industry builds smart agriculture through the integration of production, learning and research, and cultivates a group of leading enterprises to drive farmers to produce and plant, which initially shows the “smart orchard” planting and production management mode of intelligent data. At the same time, the introduction of intelligent processing equipment and modern marketing management, in order to enhance the competitiveness of the downstream industry. In the process of the construction of smart agriculture, the three chains gradually integrated with each other, and the degree of integration is continuously deepened. Finally, by constructing the fuzzy evaluation index system of three-chain fusion, the current three-chain fusion of the mandarin orange industry is evaluated, and it is concluded that the three-chain fusion of the citrus industry is in the cultivation stage, and the depth of the integratation of the three chains needs to be further enhanced.
Panel data of 30 provinces (Due to the lack of data, the statistical data mentioned here do not include the Tibet Autonomous Region, the Hong Kong Special Administrative Region, the Macao Special Administrative Region and Taiwan Province) in China from 2013 to 2022 were selected to construct the index system of new quality productivity development, and the entropy method was used to measure the index system to explore the impact of new quality productivity on cultural product exports. The empirical analysis shows that the development of new quality productivity has a significant promotion effect on the export of cultural products, and the conclusion is still valid after the robustness test and dealing with the endogeneity problem. The promotion effect of new quality productivity on the export of cultural products shows obvious heterogeneity effect in terms of geographic regions and the degree of opening up to the outside world, and the promotion effect is more significant in the middle-eastern region and the region with a high degree of opening up to the outside world. The further mechanism test shows that the new quality productivity can promote the export of cultural products by improving the level of regional scientific and technological innovation.