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唧唧堂: POM 生产运营管理 2021年2月刊论文摘要14篇

唧唧堂  · 公众号  ·  · 2021-05-26 21:20

正文

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解析作者 | 唧唧堂管理学写作小组: Savyon
审校 | 唧唧堂管理学写作小组: Eric.J, 明月奴
编辑 | 悠悠



1. 基于拍卖的定价机制和社会特征对小额贷款绩效的影响


作者通过实证研究了网络借贷中借款人对基于拍卖的定价机制的选择及其社会特征对清单结果和贷款绩效的影响。通过分析某领先网络借贷平台的数据,作者发现,借款人对定价机制的选择以及与某个团体的关联都与较高的融资概率有关;因此,贷款人会将其理解为借款人信誉的积极信号。然而,这些信号对贷款人具有误导性,因为它们实际上都与更高的违约风险和更大的信贷损失(在违约的情况下)有关。此外,作者发现,当借款人选择借款人定价机制时,其社会特征对融资概率的正向影响较小。而且,虽然借款人的朋友数量(团体的隶属关系)对贷款绩效有正(负)的影响,但却加重(降低)了群体(朋友的数量)对贷款违约风险的影响。另一个有趣的发现是,尽管借款人的团体隶属关系对贷款绩效有负面影响,但却可以减轻借款人所要求的金额对清单结果和贷款绩效的负面影响。通过分析还发现,网络小额贷款的情形下,相比一些传统的信用相关信息,借款人选择基于拍卖的定价机制,其贷款表现更容易预测。


We empirically investigate the effects of a borrower’s choice of auction-based pricing mechanisms and her social characteristics on listing outcomes and loan performance in online lending. Analyzing data from a leading online lending platform, we find that the borrower’s choice of borrower pricing mechanism and being affiliated with a group are both associated with higher funding probability; thus, the lenders may interpret them as positive signals of creditworthiness of the borrower. However, these signals are misleading to the lenders as they are actually both associated with higher default risk and greater credit loss (in case of default). In addition, we find that the positive effect of the borrower’s social characteristics on funding probability is smaller when she chooses the borrower pricing mechanism. Moreover, we find that although exerting a positive (negative) effect on loan performance, the number of friends (group affiliation) of the borrower aggravates (reduces) the effect of the group affiliation (number of friends) on loan default risk. Another interesting finding is that, despite having an adverse effect on loan performance, a borrower’s group affiliation, can mitigate the negative effects of the borrower’s requested amount on listing outcomes and loan performance. Our analysis also shows that, in the context of online microloan lending, a borrower’s choice of auction-based pricing mechanisms is a better predictor of loan performance than some other traditional credit-related information.


参考文献:Sirong Luo, Radha Mookerjee, Dengpan Liu. The Effects of Auction-based Pricing Mechanisms and Social Characteristics on Microloan Performance. Production and Operations Management 30(2), 311-329.



2. 采用和整合新的诊断测试的一个操作框架


医学研究在诊断测试和临床工作流程之间的差距可能会导致宝贵的医学研究在由于工作量增加而繁忙的临床环境下被放弃,或者实践中可能很有价值的医学研究在实验室中由于对新测试的系统层面的优点有所误解而被放弃。这对研究机构、诊断测试制造商和医院管理人员等均有影响。为了弥补这一差距,作者通过一个马尔科夫决策过程(MDP)创建了“采用区域”,可以用来指定医学研究必须实现的测试特性组合,以使测试在实践中具有可行性。为了解决患者风险分层所产生的维数灾难问题,作者提出了一个融合了结构特性的分解算法,可以指出哪些患者以及何时应该使用新的诊断测试。在一个合作急诊部门的案例研究中,作者发现,传统的短视性质的医疗标准会导致研究开发和临床实践中糟糕决策的出现。尤其是,长期以来在研究过程中经常被忽视的次要考虑因素—特异性,实际上是临床环境中新测试能够有效实施的关键。这种具有短视性质的方法可能导致对新的医学研究的高估或低估。与作者所提出的MDP决策相比,当简单的(当前的)策略被用于将研究整合到临床环境中时,这种不匹配就会加剧,而新测试的糟糕执行也会导致不必要的排斥。本文的框架为医学研究发展和临床采用决策提供了易理解的确定准则,可以告诉医学研究应该关注哪些测试特征以提高采用的机率。


The gap between medical research on diagnostic testing and clinical workflow can lead to rejection of valuable medical research in a busy clinical environment due to increased workloads, or rejection of medical research in the laboratory that may be valuable in practice due to a misunderstanding of the system-level benefits of the new test. This has implications for research organizations, diagnostic test manufacturers, and hospital managers among others. To bridge this gap, we develop a Markov decision process (MDP) from which we create “adoption regions” that specify the combination of test characteristics medical research must achieve for the test to be feasible for adoption in practice. To address the curse of dimensionality from patient risk stratification, we develop a decomposition algorithm along with structural properties that shed light on which patients and when a new diagnostic test should be used. In a case study of a partner Emergency Department, we show that the conventional myopic medical criterion can lead to poor decision making in both research development and clinical practice. In particular, we find that specificity—long a secondary consideration and often overlooked in the research process—is, in fact, the key to effective implementation of new tests into clinical environments. This myopic approach can lead to overvaluing or undervaluing new medical research. This mismatch is accentuated when a simple (current) policy is used to integrate research into the clinical environment compared with our MDP’s policy—poor implementation of a new test can also lead to unnecessary rejection. Our framework provides easily interpretable guidelines for medical research development and clinical adoption decisions that can guide medical research as to which test characteristics to focus on to improve the chances of adoption.


参考文献:Pengyi Shi, Jonathan E. Helm, H. Sebastian Heese, Alice M. Mitchell. An Operational Framework for the Adoption and Integration of New Diagnostic Tests. Production and Operations Management 30(2), 330-354.



3. 风险管理中的运营-财务接口:研究进展和机会


在复杂的不确定性来源下,运营-财务接口(OFI)共同优化材料、货币和信息流。为了概述这一丰富的新兴和交叉学科领域,本研究综合了跨不同主题和方法的文献,系统地展示了从最初的基础研究进展到每一个主要研究方向的最新进展,从而根据经营和财务风险管理之间的联系和潜在的相互作用提出了前瞻性主题的未来研究创新展望。


The operations-finance interface (OFI) jointly optimizes material, monetary, and information flows under intricate sources of uncertainty. To sketch the broad landscape in this emerging and interdisciplinary field, this study synthesizes literature across diverse themes and dispersed methodologies, screens systematically the research progression from original foundations to recent contributions in each major research stream, and thereby advocates future research innovations on prospective topics in light of the interconnections and potential reciprocity between operations and finance from risk management aspects.


参考文献:Jiao Wang, Lima Zhao, Arnd Huchzermeier. Operations-Finance Interface in Risk Management: Research Evolution and Opportunities. Production and Operations Management 30(2), 355-389.



4. 成本信息的透明对跨期价格歧视的影响


随着企业自己或第三方公布企业的产品成本信息,这些信息对消费者来说已逐渐透明化,由此降低了消费者对产品成本的不确定性。本研究以一个具有前瞻性消费者选择的企业定价动态模型,来评估成本透明如何影响企业的跨期价格歧视和利润,以及消费者的战略等待决策和盈余。除此之外,如果消费者认为耐用产品的成本较低,他们预测未来的价格会大幅下跌并且倾向于推迟购买,从而会阻碍公司对跨期价格歧视的实施。成本不透明的情况下,消费者可能会认为价格较高的产品其成本更高,这使得低成本企业有动机模仿高成本企业的高价格,以鼓励消费者尽早购买。相反,高成本企业可能会选择扭曲其价格,以避免低成本企业进行价格模仿。成本透明向消费者透漏了产品的真实成本,限制了低成本公司模仿价格的行为。因此,成本透明对成本高(低)的企业有利(不利)。在均衡状态下,成本透明会增加企业的销售量,促使更多的消费者提前而不是推迟购买产品,从而减弱消费者的战略等待。作者还发现,如果企业的成本较高,成本透明会导致价格上涨,进而损害消费者的利益。可以预见,成本透明会导致更高的企业利润和消费者剩余,从而可以促进企业的新产品创新。


A firm’s product-cost information is increasingly transparent to consumers as the firm itself or third parties publish such information, which reduces consumers’ uncertainty for the product’s cost. Using a dynamic model of firm pricing with forward-looking consumer choices, this study assesses how cost transparency affects the firm’s intertemporal price discrimination and profit, as well as the consumers’ strategic waiting decisions and surplus. Ceteris paribus, if consumers believe a durable product has a lower cost, they will expect a larger future price drop and tend to delay purchases, impeding the firm’s ability to engage in intertemporal price discrimination. Without cost transparency, consumers may infer products with higher prices to have higher costs, giving a low-cost firm incentives to mimic a high-cost firm’s high price to encourage consumers to buy early. In contrast, a high-cost firm may choose to distort its price to avoid a low-cost firm’s price mimicry. Cost transparency reveals the product’s true cost to consumers, limiting the low-cost firm’s ability to mimic prices. Thus, cost transparency will benefit (harm) a firm with a high (low) cost. In equilibrium, cost transparency will increase the firm’s sales volume and induce more consumers to buy the product earlier instead of later, attenuating strategic waiting by consumers. We also find that cost transparency can lead to higher prices and hurt consumers if the firm has a high cost. In expectation, cost transparency leads to higher firm profits and consumer surplus, facilitating a firm’s new product innovation.


参考文献:Baojun Jiang, K. Sudhir, Tianxin Zou. Effects of Cost‐Information Transparency on Intertemporal Price Discrimination. Production and Operations Management 30(2), 390-401.


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5. 国际税收和生产外包


本文研究了国际税收对跨国公司生产外包战略的影响,这一问题近来已引起实务界和立法界的广泛关注。作者建立了一个信息不对称的经济模型,发现在地域税制下,全球税收差异的存在可能会导致企业生产外包战略的微妙变化。特别是税收上的考虑会使跨国公司更倾向于让海外子公司采购原料,再将原料转售给合同制造商,以在低税收管辖区内保持一定的利润。这一效应不仅会导致企业选择更昂贵的材料供应商,而且还会导致产品的过度生产。因此,除了对收入转移的普遍关注外,税收方面的考虑还可能会进一步导致经营扭曲。作者分析表明,在防止对转移的外国利润进行免税的同时,减少税收差异可能会为企业和祖国利益相关者带来双赢的结果。在降低一定税率的情况下,企业会制定更有效的经营决策,以获得更高的税后利润,而祖国利益相关者也可以获得更多的税收收入。有趣的是,外国合同制造商也可以从这种变化中受益。


This paper studies the effects of international taxation on multinational firms’ production outsourcing strategies, which has attracted recent attention from both practitioners and legislators. We formulate a stylized economic model with information asymmetry and find that under the territorial tax system, the presence of global tax disparity may result in subtle changes of a firm's production outsourcing strategy. In particular, the tax consideration can make a multinational firm more inclined to procure materials by its overseas subsidiary and then resell the materials to the contract manufacturer to retain profit in the low tax jurisdiction. Such an effect can not only cause the firm to choose a more expensive material supplier but also overproduce the products. Therefore, besides the general concern of income shifting, tax considerations can further lead to operational distortions. We show that to reduce tax disparity while preventing tax exemption for shifted foreign profit may lead to a win-win outcome for the firm and the home country stakeholders. The firm will make more efficient operational decisions to obtain a higher after-tax profit at a certain reduced tax rate, while the home country stakeholders can receive more tax income. Interestingly, the foreign contract manufacturer may also benefit from such a change.


参考文献:Guoming Lai, Yixuan Liu, Wenqiang Xiao. International Taxation and Production Outsourcing . Production and Operations Management 30(2), 401-418.



6. 云服务模型在供应商和用户安全投资激励中的作用


云计算可以被看作是一种电子商务,这是因为云提供商通过互联网向企业销售一系列信息技术服务和操作。对于搬到云上的公司来说,安全是一个主要问题。云的安全是云提供商和云用户的共同责任。不过,提供商和用户通过他们的努力影响云安全的程度取决于云服务模型。在本研究中,作者提出了一个博弈理论模型来研究云服务模型对供应商和用户激励发挥安全努力的影响。结果表明,对于给定的服务模型,由于安全漏洞而导致用户损失的增加会诱使用户发挥更多的安全努力。但是,如果提供者的服务成本很低,那么提供者就可以免费利用增强的用户激励,通过减少用户的努力来发挥安全性。类似地,当用户在云估值或因安全漏洞而造成的损失方面更加同质化时(取决于服务成本),云提供商可以免费利用用户增强的激励来发挥安全努力,从而获得利润。作者还发现,云提供商如何根据特定用户组的特征和安全损失的可能性,将特定的云服务模型瞄准特定的用户群。


Cloud computing can be viewed as an e-business in which the cloud provider sells a range of information technology services and operations over the Internet to firms. Security is a major concern for firms that move to the cloud. The security of a cloud is the joint responsibility of the cloud provider and cloud users. However, the extent to which the provider and users can affect cloud security through their efforts depends on the cloud service model. In this study, we develop a game-theoretical model to study the impact of the cloud service model on provider and user incentives to exert security effort. Our results show that for a given service model, an increase in the user loss from a security breach induces users to exert more security effort. However, if the provider’s service cost is low, the provider profitably free rides on the enhanced user incentives to exert security effort by diminishing his effort. Analogously, the cloud provider is able to profitably free ride on users’ enhanced incentives to exert security effort when the user population is more homogeneous in terms of either cloud valuation or loss from a security breach, depending on the service cost. Our results also have implications for how a cloud provider could possibly target a particular cloud service model to specific user groups based on their characteristics and likelihood of security loss.


参考文献:Mingwen Yang, Varghese S. Jacob, Srinivasan Raghunathan. Cloud Service Model’s Role in Provider and User Security Investment Incentives. Production and Operations Management 30(2), 419-437.



7. 为客户满意度管理手机服务:来自金字塔底部市场的证据


本研究调查了增值服务(VAS)和客户关怀服务(CCS)如何降低核心电话服务满意度和金字塔底部(BOP)市场的整体客户满意度之间的关联。作者认为客户对VAS和CCS的反应是不同的,因为这些服务的价格评估不同。作者进一步研究了本地和全球电话供应商的服务维度之间的交互如何不同。作者研究了来自南亚7个国家(包括印度、巴基斯坦、孟加拉国、斯里兰卡、尼泊尔、不丹和马尔代夫)的34家供应商,超过3200多名手机用户的一个档案数据集,发现,VAS会负向降低核心连接满意度与整体满意度之间的关联,CCS会正向降低核心连接满意度与整体满意度之间的关联。此外,与本地供应商相比,全球供应商的正向和负向互动效应更强。作者讨论了研究结果的贡献和管理意义。


This study investigates how value-added services (VAS) and customer care services (CCS) moderate the association between satisfaction with the core telephone service and overall customer satisfaction in base-of-the-pyramid (BOP) markets. We propose that customers respond to VAS and CCS differently due to variations in price evaluations of these services. We further examine how the interactions among the service dimensions may differ for local and global telephone providers. We used an archival dataset from a survey of more than 3200 cellphone customers across 34 providers in seven South Asian countries that include India, Pakistan, Bangladesh, Srilanka, Nepal, Bhutan, and Maldives to test our conjectures. We find that satisfaction with VAS negatively moderates the relationship between core connection satisfaction and overall satisfaction, and satisfaction with CCS positively moderates the relationship between core connection satisfaction and overall satisfaction. Furthermore, the positive and negative interaction effects are stronger for global vs. local providers. We discuss contributions and managerial implications of the findings.


参考文献:Jiban Khuntia, Raveesh Mayya, Sunil Mithas, Ritu Agarwal. Managing Cellphone Services for Customer Satisfaction: Evidence from the Base‐of‐the‐Pyramid Markets. Production and Operations Management 30(2), 438-450.



8. 将回收纳入灾前部署的影响,以应对快速发生的可预测灾害


对于人道主义组织来说,最初的部署决策是至关重要的,因为他们会预先部署资源,并为可预测的灾害(如飓风、洪水和野火)做好准备。资源配置过少会导致需求得不到满足、负面宣传和捐助者的不满。然而,部署大量资源也可能同样会导致负面宣传和捐助者的不满,因为当灾难没有像预期的那样发生,部署的项目没有得到有效管理,而导致高成本和资源的浪费。作者利用了随机优化模型来研究初始部署决策和由此产生的成本。随机模型要求在灾害预警之后,但是在灾害发生并实现真实需求之前,进行初始部署决策。研究发现,一个完整的优化模型(将回收和处理纳入模型中)将会增加初始部署水平,相比将不回收和处理纳入的模型(称为部分优化模型)。这使得全面优化模型的使用能够服务更多的受益者。作者还发现,固定的回收成本对初始部署水平没有太大影响,但会导致更加统一的预定位策略。基于本研究的结果,作者提出了一些有趣的管理见解,这些见解可能对人道主义组织在可预测灾害的预先定位库存有用。


Initial deployment decisions are critical to humanitarian organizations as they pre-position resources and prepare for predictable disasters, such as hurricanes, floods, and wildfires. Deploying too few resources results in unmet demand, bad publicity, and unhappy donors. However, deploying a large number of resources can also result in bad publicity and unhappy donors due to high costs and wasted resources when disasters do not occur as expected and deployed items are not managed efficiently. We use a stochastic optimization model to investigate the initial deployment decision and resulting costs. The stochastic model forces the initial deployment decision to be made after the disaster warning, but before the disaster occurs and true demand is realized. We find that a full optimization model (incorporating returns and disposal into the model) will increase the initial deployment level from the level obtained without incorporating returns and disposal (referred to as a partial optimization model). This allows more beneficiaries to be served when using a full optimization model. We also find that fixed return costs do not have a large impact on initial deployment levels, but can result in a more consolidated pre‐positioning strategy. Using the results of our models, we present several other interesting managerial insights that may be useful for humanitarian organizations in pre‐positioning inventory for predictable disasters.


参考文献:Jon M. Stauffer, Subodha Kumar. Impact of Incorporating Returns into Pre-Disaster Deployments for Rapid-Onset Predictable Disasters. Production and Operations Management 30(2), 451-474.


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9. 需求不确定性下利用随机优化进行材料需求规划


物料需求规划(MRP)是企业资源规划(ERP)系统的核心组成部分,已被制造商广泛用于确定零部件的生产批量。这些批量通常是基于确定性和动态需求假设计算得到的,而用于对冲需求不确定性的安全库存则是基于不同的假设独立确定的。由于批量和安全库存不是同时确定的,在实践中经常使用的决策多是次优决策。存货和服务水平对制造业的关键影响推动了MRP随机优化方法的研究。本文研究了需求不确定性下MRP系统的随机优化方法,提出了一个两阶段和一个多阶段模型分别用于处理静态-静态和静态-动态决策框架。作者首先推导出两阶段和多阶段模型的结构特性,以说明这两种模型确定的规划之间的差异。由于多阶段随机规划在实际应用中并不容易,作者因此提出了一些实用的改进措施。首先,为了解决可伸缩性问题,作者将启发式与先进的抽样方法结合。其次,为了允许实时的静态-动态决策,作者从多阶段模型的解中推导出策略。最后,为了处理动态-动态决策框架,作者采用了滚动优化。数值实验验证了随机优化方法在MRP中的有效性和性能,而且表明与传统的生产计划和安全库存确定方法相比,随机优化方法具有显著节约成本的潜力。


Material Requirements Planning (MRP), a core component of enterprise resource planning (ERP) systems, is widely used by manufacturers to determine the production lot sizes of components. These lot sizes are typically computed based on deterministic and dynamic demand assumptions, while safety stocks, which hedge against demand uncertainty, are determined independently based on different assumptions. As the lot sizes and safety stocks are not determined simultaneously, sub-optimal decisions are often used in practice. The critical impact of inventories and service levels in manufacturing motivates the study of stochastic optimization methods for MRP. In this study, we investigate stochastic optimization methods for MRP systems under demand uncertainty. A two-stage and a multi-stage model are proposed to deal with the static‐static and static‐dynamic decision frameworks, respectively. We first derive structural properties of the two-stage and multi-stage models to provide insights on the differences between the plans created with these two models. As multi-stage stochastic programs are not convenient in real-world applications, several practical enhancements are proposed. First, to address scalability issues, we employ heuristics in combination with advanced sampling methods. Second, to allow real-time static-dynamic decisions, we derive a policy from the solution of the multi-stage model. Third, to deal with the dynamic-dynamic decision framework, we employ a rolling horizon implementation. The effectiveness and performance of stochastic optimization for MRP are validated by numerical experiments, which demonstrate that the stochastic optimization approaches have the potential to generate significant cost savings compared to traditional methods for production planning and safety stocks determination.


参考文献:Simon Thevenin, Yossiri Adulyasak, Jean-François Cordeau. Material Requirements Planning Under Demand Uncertainty Using Stochastic Optimization. Production and Operations Management 30(2), 475-493.



10. 双渠道分销:成本信息不对称的情形


双渠道分销有利于上游制造商,但可能会激怒下游零售商。当零售商处于信息劣势时,渠道冲突似乎会加剧。作者证明了事实并非如此。(i)作者论证了上游私人信息可以提高渠道效率和消费者剩余。其主要机制是信号失真和双重边缘化的抵消作用:在私人销售成本的情况下,制造商可以通过降低批发价来传递其成本;降价鼓励零售商更多的购买,从而减少了双重边缘化,提高了渠道效率。(ii)作者对公认的观点加以修正。普遍认为,成本信息不对称会降低效率的观点在双通道背景下不起作用。引入成本信息不对称可以从根本上改变双渠道均衡,使零售商和渠道从制造商侵占的受害者转变为受益者。此外,作者还解释了为什么零售商可以从他的信息劣势中获益,以及什么时候他可以从制造商的销售成本提高中获益,尽管零售存在竞争。(iii)作者证明了得到的以上结果对其他常见情形下也是适用的,例如,两部分关税、价格竞争、不完全替代和同步行动。研究结果揭示了厂商侵占的一个更微妙的观点:由于私人成本信息可以缓解渠道冲突和提高消费者剩余,先前的研究可能高估了侵占的危害。通过强调成本信息不对称的关键作用,本研究加深了对双通道理论和实践的理解。


Dual channel distribution benefits upstream manufacturers but may irritate downstream retailers. The channel conflict only seems to aggravate when retailers are put at information disadvantage. We show this need not be the case. (i) We demonstrate upstream private information can improve channel efficiency and consumer surplus. The main mechanism is the offsetting interplay of signaling distortion and double marginalization: with private selling cost, the manufacturer may signal her cost by cutting the wholesale price; the price cut encourages the retailer to buy more, thereby reducing double marginalization and improving channel efficiency. (ii) We qualify the received wisdom. The general insight that cost information asymmetry reduces efficiency does not work in dual-channel settings. We show incorporating cost information asymmetry can change dual-channel equilibrium substantially—it can turn the retailer and channel from the victims of manufacturer encroachment to its beneficiaries. Also, we rationalize why the retailer can benefit from his information disadvantage, and when he can gain from the manufacturer’s selling cost improvement, despite retail competition. (iii) We demonstrate our results are robust for other prevailing arrangements, for example, two-part tariffs, price competition, imperfect substitution, and simultaneous moves. Our results suggest a more nuanced view of manufacturer encroachment: as private cost information can ease channel conflict and improve consumer surplus, previous studies may have overestimated the harm of encroachment. By highlighting the critical role of cost information asymmetry, this study sharpens our understanding of dual‐channel theory and practice.


参考文献:Long Gao, Liang Guo, Adem Orsdemir. Dual-Channel Distribution: The Case for Cost Information Asymmetry. Production and Operations Management 30(2), 494-521.



11. 回收技术选择对延长生产者责任的影响


作者研究了回收技术选择,这是生产者责任延伸的背景下受到较少关注的一个关键因素,而且在驱动回收系统的环境效益方面,它与产品回收设计之间是相互作用的。长期以来集体回收系统因限制了生产者责任延伸的环境效益而被诟病,因为生产者之间存在搭便车的问题,这可能会削弱产品设计以回收为目的的动机。作者通过分析回收技术和产品为回收而设计的选择之间的相互作用,重新审视并完善了这一论断。作者首先提出了博弈理论模型,其中生产者和加工者分别决定产品设计的回收和回收技术的选择。然后比较了在集体系统和单个系统中回收的均衡效益。本研究的关键结果是,当考虑回收技术选择时,集体回收系统比单个回收系统能带来更高的环境和经济效益。这是因为集体回收系统能够为回收技术的改进提供更强的激励。反过来,这些改进可以帮助改善由于生产者在集体回收系统中搭便车而导致的劣质产品回收设计结果的缺陷。根据这些结果,为了评估基于生产者责任的延伸回收系统的环境效益而专注于产品设计的回收可能需要详细审查。生产者和决策者可能需要评估回收系统为促进回收的产品设计和改进回收技术所提供的奖励。


We study recycling technology choice, a critical factor that has received little attention in the context of extended producer responsibility, and its interaction with product design-for-recycling in driving the environmental benefits of recycling systems. Collective recycling systems have long been criticized for restricting the environmental benefits of extended producer responsibility because of free riding issues among producers, which can undermine incentives for product design-for-recycling. We revisit and refine this assertion by analyzing the interaction between recycling technology and product design-for-recycling choices. We develop game-theoretic models where producers and processors decide on product design-for-recycling and recycling technology choices, respectively. We then compare the equilibrium benefits of recycling in collective and individual systems. The key result in this study is that when recycling technology choice is taken into account, collective recycling systems can lead to higher environmental and economic benefits than individual recycling systems. This is because collective recycling systems provide stronger incentives for recycling technology improvements. In turn, these improvements can help overcome the drawbacks associated with inferior product design-for-recycling outcomes caused by free riding concerns among producers in collective recycling systems. In light of these results, we posit that an exclusive focus on product design-for-recycling to assess the environmental benefits of extended producer responsibility-based recycling systems may need scrutiny. Producers and policy makers may need to evaluate recycling systems with respect to the incentives they provide for both product design-for-recycling and recycling technology improvements.


参考文献:Morvarid Rahmani, Luyi Gui, Atalay Atasu. The Implications of Recycling Technology Choice on Extended Producer Responsibility. Production and Operations Management 30(2), 522-542.


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12. 评估灾害运作管理:结果-过程相综合的方法


人道主义行动在减轻自然灾害造成的人类和社会损失方面发挥了关键作用。了解应急人员开展高效和有效的人道主义行动的准备情况和能力的最佳方式是进行评估。在评估人道主义行动时,更多地是关注其结果上,虽然过程也会被提及,但却没有深入研究,也没有特定的分析方法。本研究试图通过提出和测试评价灾害运作管理的一种结果/过程相综合的方法来填补这一空白。通过问卷调查和建模方法,分别对灾害管理的输出分析和过程分析进行了研究。该综合框架已被应用于一个小型非营利组织对洪水的应急响应中。研究发现,分开采用两种方法可能会歪曲或部分地反映所研究的业务,而所提出的综合框架是有效的,因为它使人们对这些进程有更深入的了解。这一方法可以被应用于灾害运作管理的评估中,而且能够准确和有效地查明救济行动的关键因素、长处和主要弱点。







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