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今天小编为大家带来《博弈视角下社区生鲜食品供应链双渠道动态定价研究》引言。
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本期推文阅读时长大约5分钟，请您耐心阅读。
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Today I bring you
Introduction to "A Study on the Dynamic Pricing of Community Fresh Food Supply Chain with Dual Channels from a Game Perspective".
Welcome your visit!
The reading time of this tweet is about 5 minutes, please read it with patience.
本期推文将本通过思维导图，精读内容，知识补充三个板块，展示期刊论文《博弈视角下社区生鲜食品供应链双渠道动态定价研究》引言，请读者跟着小编一起来学习吧！
This tweet will Ben through the mind map, intensive reading content, knowledge supplement three panels, show the journal paper "game perspective of community fresh food supply chain dual-channel dynamic pricing research" introduction, please readers follow the editor to learn it!
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思维导图
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精读内容
引言部分，作者首先介绍了研究背景——随着时代的变化，生鲜供应链的渠道由线下转变成线下与线上相结合的形式。在不同渠道存在着质量差异，批发价格、保鲜成本、产品变质等等条件影响需求的情况下，多渠道生鲜供应链的协调问题值得研究，与此同时，动态定价问题也成为研究热点。
In the introduction, the authors firstly introduce the background of the study - with the changing times, the fresh food supply chain channels have changed from offline to a combination of offline and online forms. With quality differences across channels, wholesale prices, freshness costs, product spoilage and other conditions affecting demand, the coordination of multi-channel fresh food supply chains is worth studying, and at the same time, the dynamic pricing problem has become a hot topic of research.
紧接着由于生鲜食品需求量大、容易消耗、毛利低等特点，介绍了生鲜食品的库存控制的相关研究。另外生鲜食品还有易变质，保质期短，易变质，价格波动打等特点，介绍了生鲜供应链双渠道供应链协调的相关研究。
Immediately after that, due to the characteristics of fresh food such as high demand, easy consumption and low gross profit, the research related to inventory control of fresh food is introduced. In addition fresh food also has characteristics such as perishable, short shelf life, perishable, and price fluctuation hit, etc. The research related to dual-channel supply chain coordination of fresh food supply chain is introduced.
最后总结了现有的研究将需求分为确定需求和随机需求，而且大部分研究都研究只有零售商负责销售的供应链，考虑电商渠道销售的研究较少，而且一般变分不等式应用于生鲜供应链的研究较少，并说明此文的研究内容：使用微分变分不等式研究双渠道生鲜供应链的定价策略问题。
Finally, it concludes that the existing studies classify demand into deterministic and stochastic demand, and most of them study supply chains where only retailers are responsible for sales, and fewer studies consider sales in e-commerce channels, and fewer studies apply the general variational inequality to fresh food supply chains, and explains the research content of this paper: using differential variational inequality to study the pricing strategy problem of dual-channel fresh food supply chains.
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知识补充
本文提到了最优控制理论，那么最优控制理论的基本思想和方法都有什么呢？
最优控制理论是现代控制理论中的核心内容之一，其主要实质是，在满足一定约束条件下寻求最优控制规律或控制策略，使得系统在规定的性能指标下具有最优值。
动态规划、最大值理论和变分法是最优控制理论的基本内容和常用方法。
动态规划是贝尔曼于二十世纪五十年代中期为解决多阶段决策过程而提出来的。这个方法的关键是建立在他所提出的“最优性原理”基础之上的，这个原理归结为用一组基本的递推关系式使过程连续的最优转移它可以求这样的最优解，这些最优解是以计算每个决策的后果并对今后的决策制定最优决策为基础的，但在求最优解时要按倒过来的顺序进行，即从最终状态开始到初始状态为止。
庞特亚金于1956-1958年间创立的最大值原理是经典最优控制理论的重要组成部分和控制理论发展史上的一个里程碑。它是解决最优控制问题的一种最普遍的有效方法。由于它放宽了求解问题的前提条件，使得许多古典变分法和动态规划法无法解决的工程技术问题得到了解决。
In this paper, optimal control theory is mentioned, so what are the basic ideas and methods of optimal control theory?
Optimal control theory is one of the core elements of modern control theory, the main essence of which is to seek the optimal control law or control strategy under the satisfaction of certain constraints, so that the system has the optimal value under the specified performance index.
Dynamic programming, maximum value theory and variational method are the basic elements and common methods of optimal control theory.
Dynamic programming was proposed by Bellman in the mid-1950s to solve multi-stage decision processes. The key to this method is based on his "optimality principle", which boils down to a set of basic recursive relations that make the process continuously optimal. Optimal solutions are performed in reverse order, i.e., starting from the final state and ending with the initial state.
The maximum value principle, created by Pontryagin in 1956-1958, is an important part of classical optimal control theory and a milestone in the history of control theory. It is one of the most general and effective methods for solving optimal control problems. Since it relaxes the preconditions for solving the problem, it has enabled the solution of many engineering problems that could not be solved by classical variational and dynamic programming methods.
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参考资料：DeepL翻译，知乎，百度
参考文献：潘琳,徐夏静,周荣庭.博弈视角下社区生鲜食品供应链双渠道动态定价研究[J/OL].中国管理科学:1-12[2023-02-05].
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