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  • Economics  (5)
  • 1
    Online Resource
    Online Resource
    Wiley ; 2022
    In:  International Transactions in Operational Research
    In: International Transactions in Operational Research, Wiley
    Abstract: While there is much research on coordinating the dual‐channel supply chain using the revenue‐sharing contract, it is unclear if there is a better mechanism design in the buy‐online‐and‐pickup‐in‐store (BOPS) mode. In this channel integration environment, the customer service provided by the bricks‐and‐mortar store is critical to the chain's success. Based on a stackable game model, we analyze the contract methods for the cases of revenue sharing and no revenue sharing, where the latter is classified into two types: All the credit goes to the offline or online channel. Focusing on improving consumer service and supply chain performance in the BOPS mode, we observe that revenue sharing is not necessarily the best contract type, while the non‐revenue‐sharing contract of a lump‐sum subsidy plus quantity discount can coordinate the supply chain. We also analyze the impacts of some endogenous parameters and derive the conditions for the equilibrium outcomes. We find that revenue sharing cannot effectively stimulate the offline channel to improve its service effort as the offline channel is more concerned about service cost sharing than revenue sharing. The results are similar to those of revenue allocation to the online or offline channel in the BOPS mode, but the conditions are slightly different. Conducting numerical studies to gain insights from the analytical findings, we find that the subsidy contract is better than the revenue‐sharing approach under various market conditions.
    Type of Medium: Online Resource
    ISSN: 0969-6016 , 1475-3995
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2019815-2
    SSG: 3,2
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  • 2
    Online Resource
    Online Resource
    Hindawi Limited ; 2022
    In:  Mobile Information Systems Vol. 2022 ( 2022-8-17), p. 1-10
    In: Mobile Information Systems, Hindawi Limited, Vol. 2022 ( 2022-8-17), p. 1-10
    Abstract: With the emergence of several new services such as driverless vehicles and virtual reality, mobile communication networks face problems such as heavy load and insufficient computing resources. The development of cloud, edge, and mobile edge network computing provides a good solution to this problem. This paper proposes the development of a user energy efficiency fairness task unloading algorithm for cloud-side networks. First, a cloud-side network cooperation model is constructed. The model ensures the efficient use of user energy and addresses the task offloading decision and resource allocation optimization problem jointly. Using the generalized fraction theory, the optimization problem is transformed into an equivalent convex problem by introducing relaxation as well as auxiliary variables. Next, the centralized energy efficiency fairness (CEEF) and alternating direction method of multiplier (ADMM)-based energy efficiency fairness algorithms are implemented to obtain an optimal solution for the optimization problem. Finally, through experimental simulation, the convergence of the CEEF- and ADMM-based energy efficiency fairness algorithms is verified. Compared with noncooperative algorithms, the performance of our proposed method increased by 30.76%. The proposed algorithm has been verified to ensure the fairness of user energy efficiency.
    Type of Medium: Online Resource
    ISSN: 1875-905X , 1574-017X
    RVK:
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2022
    detail.hit.zdb_id: 2187808-0
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  • 3
    Online Resource
    Online Resource
    Hindawi Limited ; 2022
    In:  Mobile Information Systems Vol. 2022 ( 2022-5-26), p. 1-12
    In: Mobile Information Systems, Hindawi Limited, Vol. 2022 ( 2022-5-26), p. 1-12
    Abstract: This article focuses on the macroeconomic early warning based on support vector machines under multi-sensor data fusion technology. The economic crisis has always been a topic of great concern to the entire world, and there has never been a lack of research and prevention of it in the development process. At present, the economic early warning system that is frequently mentioned includes statistical models and artificial intelligence models. Economic early warning is not just a topic for discussion on a national basis. In the personal field, a thorough enough understanding of economic early warning can also better control investment incomes such as stocks. Analyzing the direction of macroeconomic policies has also become an indispensable ability for investors. In order not to be affected by the economic crisis, early warning is a crucial link. Therefore, in this article, a multi-sensor data fusion macroeconomic early warning model based on support vectors is proposed. In addition, this article also discusses each subpart separately. First, this article mentions the multi-sensor data fusion model. It conducts reasonable collection and control of data information in multiple sensors and uses computers and smart devices to improve system performance and make data clearer. At the same time, this article shows the JDL model of data fusion. It can optimize signals and processes and targets and conduct situation assessment and effect assessment. Then, this article analyzes the support vector machine economic early warning system. It discusses the four parts of linear support vector machine, nonlinear support vector machine, SVC macroeconomic early warning principle, and support vector classification macroeconomic early warning system. By gradually analyzing the macroeconomic early warning process of support vector machines, this study uses the optimal hyperplane to optimize toward the direction of minimizing economic risks. Then, this article talked about the macroeconomic early warning method based on neural network. The difficult points of traditional early warning models can be discarded. It more easily handles the complex algorithms, qualitative indicators, and quantitative indicators of highly nonlinear models, and it demonstrates the macroeconomic early warning system that optimizes the BP neural network with genetic algorithms to solve the various shortcomings of the macroeconomic early warning process. Finally, this study conducts the multi-sensor data fusion macroeconomic early warning model experiment based on support vector machine. It is divided into three parts. In the first part, the model, design system, and application of 60 sets of sensors are compared with traditional weighted least-squares filtering, and it is concluded that the accuracy and trustworthiness prediction effect of this model is better. The second part uses the data of listed companies to conduct experiments, which verify the performance of the model with different data sets. It can be obtained that its prediction effect is better. The third part is to compare the performance with several traditional models, and it is concluded that the convergence effect is good and the error is small. Its average accuracy is 5.63% higher than the average accuracy of the highest precision warning model in the traditional model. This article discusses and concludes that this model has a good future in macroeconomic early warning.
    Type of Medium: Online Resource
    ISSN: 1875-905X , 1574-017X
    RVK:
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2022
    detail.hit.zdb_id: 2187808-0
    Location Call Number Limitation Availability
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  • 4
    Online Resource
    Online Resource
    American Economic Association ; 2018
    In:  AEA Papers and Proceedings Vol. 108 ( 2018-05-01), p. 453-457
    In: AEA Papers and Proceedings, American Economic Association, Vol. 108 ( 2018-05-01), p. 453-457
    Abstract: China has launched seven regional pilots of emission trading scheme (ETS) to limit its carbon emissions. Taking advantage of the variations in the regional ETS pilots across regions and sectors and over time, we employ a difference-in-difference-indifferences (DDD) approach to evaluate the effect of ETS on low-carbon innovation at the firm level. Using patent application data of publicly-listed firms in China between 2003 and 2015, we find that the ETS pilots induced innovation in low-carbon technologies. The more active pilots—measured by carbon price and turnover rate of allowance trading—are associated with more intense low-carbon innovation.
    Type of Medium: Online Resource
    ISSN: 2574-0768 , 2574-0776
    RVK:
    Language: English
    Publisher: American Economic Association
    Publication Date: 2018
    detail.hit.zdb_id: 2932594-8
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  • 5
    Online Resource
    Online Resource
    Hindawi Limited ; 2016
    In:  Mobile Information Systems Vol. 2016 ( 2016), p. 1-10
    In: Mobile Information Systems, Hindawi Limited, Vol. 2016 ( 2016), p. 1-10
    Abstract: Based on the “storing-carrying-forwarding” transmission manner, the packets are forwarded flexibly in Intermittently Connected Wireless Network (ICWN). However, due to its limited resources, ICWN can easily become congested as a large number of packets entering into it. In such situation, the network performance is seriously deteriorated. To solve this problem, we propose a congestion control mechanism that is based on the network state dynamic perception. Specifically, through estimating the congestion risk when a node receives packets, ICWN can reduce the probability of becoming congested. Moreover, due to ICWN’s network dynamics, we determine the congestion risk threshold by jointly taking into account the average packet size, average forwarding risk, and available buffer resources. Further, we also evaluate the service ability of a node in a distributed manner by integrating the recommendation information from other intermediate nodes. Additionally, a node is selected as a relay node according to both the congestion risk and service ability. Simulation results show that the network performance can be greatly optimized by reducing the overhead of packet forwarding.
    Type of Medium: Online Resource
    ISSN: 1574-017X , 1875-905X
    RVK:
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2016
    detail.hit.zdb_id: 2187808-0
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