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Table of Content

      
    20 September 2024
    Volume 59 Issue 9
    Multi-case derivational adaptation with correlated decision attributes
    ZHANG Jianhua, WEN Dandan, HE Longfei
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  1-8.  doi:10.6040/j.issn.1671-9352.0.2022.561
    Abstract ( 53 )   PDF (1212KB) ( 60 )   Save
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    For the multi-decision attribute case adaptation problem, a multi-case derivational adaptation method based on decision attribute correlation is proposed. First, the application of the classifier chain approach in the case-induced adaptation problem is investigated, followed by an explanation of the essential concepts of decision attribute-dependent multi-case induced adapter chains. Second, Hellinger distance is utilized for the development of unique views on fitness cases that can be incorporated into the decision-making process. Finally, the weighted naive Bayesian algorithm is utilized as the base adapter technique to construct the adapter chain, resolve the probability distribution of the decision attribute values, and settle on the decision attribute values. Experiments show that the differentiated case view in the adaptation process makes it possible for the adapter chain to successfully link decision attributes and change how they depend on conditional attributes. The proposed method efficiently addresses multi-case derivational adaptation problem with correlated decision attributes.
    Distribution strategy of platform supply chain with brand spillover effect
    LI Ling, WANG Yunbo, LI Yating
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  9-17.  doi:10.6040/j.issn.1671-9352.0.2023.491
    Abstract ( 61 )   PDF (1293KB) ( 65 )   Save
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    This paper constructs a dynamic game model that includes an outsourcing supplier, a brand manufacturer, and an e-commerce platform. It explores the impact of brand spillover and economies of scale on the profits of supply chain members and the e-commerce platform under the agency and resale distribution models. Furthermore, it analyzes the preferences of supply chain members and the e-commerce platform for distribution model selection. The research results show that under the agency model, initial costs are lower, and as economies of scale and learning ability increase, suppliers and platforms can benefit from spillover effects. Under the resale model, the profits of suppliers and platforms when there are spillover effects are always higher than when there are no spillover effects. In addition, spillover effects always harm the profits of manufacturers, but when production costs are at a higher level, the agency model causes greater losses. Numerical analysis shows that suppliers and platforms can achieve win-win outcomes under certain conditions.
    Competitive strategies among supply chains considering tariff and local identity of consumers
    LIU Mingwu, GUO Ling, YAN Yue, DU Shuoming
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  18-32.  doi:10.6040/j.issn.1671-9352.0.2023.315
    Abstract ( 72 )   PDF (5265KB) ( 17 )   Save
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    Considering the factors of tariff and local identity of consumers, a competitive game model of two supply chains with two manufacturers as Stackelberg leaders is constructed, studies the optimal pricing strategies of two competitive supply chains are studied, and the influence of tariff and local identity of consumers on the profit elasticity of supply chains is analyzed. The results show that:(1)with the increase of tariffs, the wholesale price of domestic manufacturers decreases, while the sales price of retailer 1, the wholesale price of foreign manufacturers and the sales price of retailer 2 increase; with the enhancement of consumers awareness of local identity, the pricing of each member of the two chains increases, and when consumers awareness of local identity is weak, product A has more price advantage than product B.(2)With the increase of tariffs, the profits of domestic manufacturers and retailers 1 decrease, while the profits of foreign manufacturers and retailers 2 increase, and the impact of tariff changes on consumer surplus is related to the strength of consumers local identity consciousness; with the enhancement of consumers awareness of local identity, the profits of each member of the two chains increase, and the impact of changes in consumers awareness of local identity on consumer surplus is related to the level of tariff rate.(3)When the local identity consciousness is weak(the tariff rate is low), the profit elasticity of multinational supply chain members is greater than that of foreign local supply chain members, that is, the profits of multinational supply chain members are more sensitive to the change of tariff rate(local identity consciousness); properly enhancing consumers local identity can slightly slow down the losses caused by the rising tariff rate to the members of transnational supply chains, without causing damage to foreign local supply chains themselves.
    Online and offline supply chain coordination with competition and cooperation considering product quality and bilateral service level
    SHUI Wenbing, ZHOU Dongmin, GUO Shaomei
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  33-41.  doi:10.6040/j.issn.1671-9352.0.2022.620
    Abstract ( 75 )   PDF (897KB) ( 14 )   Save
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    Aiming at the supply chain coordination issues that the demand is affected by product quality, platform service level, service of team leaders, and the competition and cooperation relationship between the platform and team leaders, the supply chain decision-making models of centralized decision-making, decentralized decision-making, and coordination contracts are respectively built. The traditional cost sharing contract, two-part pricing contract, and “revenue sharing+commission” hybrid contract are designed. This paper explored the impact of product quality and bilateral service levels on the profits and optimal decisions of members before and after coordination in a competitive and cooperative supply chain. The results show that the two-part pricing contract and the “revenue sharing+commission” hybrid contract can effectively coordinate competing supply chains compared to traditional cost sharing contracts; the increase of consumers preference for product quality and bilateral services contributes to expand the market demand for products, and improves the profits of the overall members of the competitive and cooperative supply chain under coordination.
    Recycling channel selection of closed-loop supply chain considering corporate social responsibility investment under diseconomies of scale
    GUO Tingting, LI Na
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  42-55.  doi:10.6040/j.issn.1671-9352.0.2023.330
    Abstract ( 71 )   PDF (7146KB) ( 13 )   Save
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    Focusing on the closed-loop supply chain with manufacturers CSR investment, the paper constructs a manufacturer-led Stackelberg game model to comparatively analyze the pricing, CSR investment decision making, and the recycling channel selection strategies of manufacturer recycling, retailer recycling, and third-party recycling in the context of diseconomies of scale. Results indicate that:(1)In the three recycling models, the increase of customers sensitivity to CSR investment promotes recycling, raises pricing and CSR investment, while the phenomenon of diseconomies of scale entails the increasing of sale price and shrinking in both recycling rate and CSR investment. Wholesale prices are positively correlated with diseconomies of scale in cases of manufacturer recycling, third-party recycling and retailer recycling with low recycling efficiency.(2)Customers CSR investment sensitivity reduces the negative impact of diseconomies of scale on members profits, while diseconomies of scale inhibits the positive effect of the sensitivity of consumers CSR investment on members profits.(3)From the perspective of improving CSR investment level, recycling rate and overall economic benefits, it is optimal for the manufacturer to recycle when remanufacturing saves more production costs, otherwise, the retailer recycling strategy to be the best under the background of lower diseconomies of scale.(4)Once the diseconomies of scale is in the lower range, the first-mover advantage of the dominant manufacturer disappears.
    Differential game in supply chain of innovative products with double regrets of consumers
    ZHU Yi, LIU Zhenwei
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  56-63.  doi:10.6040/j.issn.1671-9352.0.2023.174
    Abstract ( 73 )   PDF (3323KB) ( 12 )   Save
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    In the context of a long-term dynamic environment, this study investigates the impact of consumer regret behavior after purchasing innovative durable products on a manufacturer-led secondary dynamic supply chain. By establishing a differential game model and solving Hamilton equation, the optimal path for manufacturers wholesale prices and retailers retail prices in the supply chain is obtained. Through numerical simulation, the data changes are presented in the form of images to further analyze the impact of consumer purchase regret behavior on various decision variables in the supply chain. The results show that consumer purchase regret can lead to a decrease in sales of innovative durable products in the supply chain, and the long-term profits of manufacturers and retailers also decrease accordingly. But as the time for innovative durable products to enter the market increases, the sales volume of the products and the long-term profits of manufacturers and retailers also increase. In addition, when the proportion of consumer regret behavior is relatively small and the product market investment time is relatively long, the long-term profits of retailers will experience a bifurcation phenomenon. Therefore, when the proportion of purchase regret behavior is low, extending the products market investment time can significantly increase the profit of this innovative durable product.
    Financing models of low-carbon supply chain under capital constraints and cross-shareholding
    WANG Yuyan, SUN Yulin, LIN Fei
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  64-78.  doi:10.6040/j.issn.1671-9352.0.2023.102
    Abstract ( 59 )   PDF (1633KB) ( 32 )   Save
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    This paper explores the issue of supplier-led supply chain financing decisions in a low-carbon and cross-holding environment. Considering cross-shareholding, this paper studies the supply chain composed of a well-funded supplier and a capital-constrained manufacturer. Three models of non-financing, bank financing, and trade credit financing are constructed respectively. On this basis, the financing models that the manufacturer preferred and the supplier preferred are given. Also, the impacts of the cross-shareholding ratio and consumers environmental awareness on the economic performance and emission-reduction level are discussed. The conclusions are as follows. Trade credit financing can achieve a win-win situation of reducing emissions and easing capital constraints. However, the capital-constrained manufacturer will always choose bank financing for a higher profit, and the manufacturer increasing shareholdings in the supplier enhances its preference for bank financing. The supplier prefers the manufacturer to choose trade credit financing and is always willing to provide trade credits. Under the trade credit financing model, the manufacturer will not gain more decision power even if it has more shareholdings in the supplier. Under the bank financing model, the manufacturer increasing shareholdings in the supplier can narrow the profit gap and alleviate the unfair profit distribution. The supplier increasing shareholdings in the manufacturer will increase the suppliers profit, but will not always increase the manufacturers profit.
    Analysis of correlation and evolutionary of risk sources in aviation industry based on risk disclosure data of listed companies
    XU Chang, HUI Yuqiao, HAN Wen, CAO Mengdi, ZHONG Zhenfang, MENG Qingchun
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  79-87.  doi:10.6040/j.issn.1671-9352.0.2023.421
    Abstract ( 65 )   PDF (2545KB) ( 39 )   Save
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    This study analyzes the risk sources disclosed by passenger airlines, airport service companies and air logistics companies based on the risk identification results of 255 listed companies in the aviation industry from 2005 to 2022 obtained by LDA method. The results of the study show that: in terms of risk correlation, there is a certain inner correlation between the risk sources of different sub-industries, and this correlation is closely related to the business attributes of the industry, and the risk correlation between the passenger airline industry and the air transportation logistics industry is higher, which suggests that there is a common risk or a similar risk characteristic between, and the results obtained by word covariance indicate that cost risk and operational risk have the highest degree of correlation with the other types of risk; and in terms of risk evolution. The five types of risks, including reputation risk, have increased, while the other three types of risks, such as stock volatility risk, have shown a decreasing trend, and the exponential smoothing method predicts that the total risk size of the passenger aviation industry and the air logistics industry in the future are both showing an increasing trend, and the airport service industry has shown a decreasing trend while the passenger aviation industry has the fastest rising trend.
    Comprehensive credit evaluation of transportation enterprises based on game theory combinatorial weighting-TOPSIS method
    LYU Antao, GAO Yongbin, HAN Wen, DONG Ying, ZHONG Zhenfang, MENG Qingchun
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  88-97.  doi:10.6040/j.issn.1671-9352.0.2023.153
    Abstract ( 72 )   PDF (1972KB) ( 75 )   Save
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    Firstly, the index system of comprehensive credit evaluation of transportation enterprises is constructed from four aspects: basic information, reward recognition, reputation assessment and administrative penalty. Secondly, the weights of each index are obtained by using game theory combination assignment method, and the comprehensive credit evaluation model of enterprises by game theory combination assignment-TOPSIS method is constructed. Finally, the data of transportation enterprises in Shandong Province are used for experimental analysis to obtain the credit evaluation results. The study shows that: the weighting of each first-level index is ranked as administrative penalty, award recognition, reputation assessment, basic information, indicating that the relevant departments should focus on assessing the administrative punishment index of enterprises; the credit evaluation results are consistent with the actual, which verifies the rationality of the evaluation model.
    Evolutionary game on government participation in expressways digital transformation
    LIU Lemin, LU Feng, FU Zhichao, PAN Zuqing, XIE Lei
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  98-107.  doi:10.6040/j.issn.1671-9352.0.2023.327
    Abstract ( 74 )   PDF (2569KB) ( 16 )   Save
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    By incorporating evolutionary game theory, this study develops a model of evolutionary game dynamics involving governments, construction enterprises, and contracting enterprises to investigate the strategic effects of government incentives on the digital transformation of expressways. MATLAB simulations are employed to analyze the critical factors influencing expressways digital transformation. The findings suggest that:(1)Reductions in transformation costs and external coefficients, coupled with increased additional benefits from transformation, significantly stimulate enterprise participation in digital transformation. Conversely, high transformation costs and external coefficients may dampen enterprise enthusiasm for digital transformation.(2)Government incentives, when reaching a certain threshold, can facilitate enterprise digital transformation, with higher incentive intensity fostering greater collaborative participation. In conclusion, government incentives play a pivotal role in fostering the deep integration of expressways into the digital economy.
    A method of online teaching platform selection based on online reviews
    LIANG Xia, GUO Jie
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  108-118.  doi:10.6040/j.issn.1671-9352.0.2023.334
    Abstract ( 52 )   PDF (961KB) ( 22 )   Save
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    To better select online teaching platforms, give college students a better online course learning experience, and provide a reference for future online education and teaching, a method for selecting online teaching platforms based on online reviews is proposed. Firstly, user reviews from alternative online teaching platforms are collected by the crawler technology, and NLPIR-ICTCLAS Chinese word separation system is used to separate online words. Next, attribute word extraction is conducted using TF-IDF algorithm, along with a method that was manually selected to obtain the attribute set. The weights of attributes are determined using the mean square deviation method. Subsequently, sentiment analysis is carried out on the online reviews, with user emotional orientations represented as probability distributions regarding the evaluation scale. On this basis, the extended VIKOR method is used to select the optimal online teaching platform. Finally, the feasibility of the method proposed in this paper is demonstrated through an example and comparative analysis.
    Construction of evaluation index system of university literature resources
    XIAO Hong, GAO Zhen
    JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE). 2024, 59(9):  119-126.  doi:10.6040/j.issn.1671-9352.0.2024.264
    Abstract ( 76 )   PDF (1877KB) ( 37 )   Save
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    By clarifying the current status of literature resource evaluation systems in domestic and foreign libraries, and combining with the actual needs of university libraries, the analytic hierarchy process(AHP)is used for weight allocation to achieve quantitative evaluation methods, improve the speed of literature resource updates, expand coverage, and more efficiently allocate resources, a literature resource evaluation system that adapts to the needs of the "Four New" disciplines is constructed.