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Approximations for High Dimensional Commodity and Energy Merchant Operations Models 高维商品和能源商人操作模型的近似
N. Secomandi
Merchant operations is an approach to manage commodity and energy conversion assets modeled as real options. Firms operate networks of such assets, e.g., multiple wind or solar farms that generate electricity at different geographical locations, may be coupled with local grid-level energy storage facilities, and are connected to various wholesale power markets via capacitated transmission lines. The corresponding models are typically intractable. This work describes methods to compute approximate operating policies and assess their optimality gaps for such models. These approximations extend techniques developed for models of single commodity and energy conversion assets.
商业运营是一种管理商品和能源转换资产的方法,建模为实物期权。公司经营这些资产的网络,例如,在不同地理位置发电的多个风能或太阳能农场,可能与当地的电网级储能设施相结合,并通过有容量的传输线连接到各种批发电力市场。相应的模型通常是难以处理的。这项工作描述了计算近似操作策略和评估这些模型的最优性差距的方法。这些近似扩展了为单一商品和能源转换资产模型开发的技术。
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引用次数: 5
Designing Effective Supply Chains in Strategic Alignment with Demand Characteristics and Market Requirements 根据需求特征和市场需求设计有效的供应链
M. Mahdavi, T. Olsen
Designing Effective Supply Chains in Strategic Alignment with Demand Characteristics and Market Requirements
根据需求特征和市场需求设计有效的供应链
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引用次数: 4
Last-mile Supply Network Distribution in Omnichannel Retailing: A Configuration-Based Typology 全渠道零售中的最后一英里供应网络分配:基于配置的类型学
S. Lim, E. Rabinovich, D. Rogers, Timothy M. Laseter
This monograph develops a configuration-based typology that describes last-mile supply network (LMSN) distribution configurations in omni-channel retailing. The goal is to integrate relevant terms that have been used disjointedly with fragmented bodies of theory to describe the various forms of LMSN. A review of the academic and practice literature was conducted and complemented with secondary observations to identify the key configuration dimensions. Established guidelines for typology and theory building (e.g., Doty and Glick, 1994) were employed to develop the typology. The proposed typology comprises four ideal archetypes: Simple LMSN, Hyperlocal LMSN, One-Stop LMSN, and Protean LMSN. The four are described along the dimensions of: (1) network structure, (2) network flow, (3) relationship governance, and (4) service architecture. Referred to here as the SHOP typology in LMSN, each archetype is associated with one or more core logistics capabilities elaborated upon in a capability profile for each archetype. The typology identifies useful LMSN patterns and enables scholars to develop models and theories based on the four configurations and relate their findings to a specific configuration or across them, rather than expanding efforts on separate and unconnected studies. Notwithstanding, it incorporates elements of the omni-channel context that updates the previous “chain†centric typology developed by Boyer and Hult (2005), and serves as a stepping-stone toward improved insights on what drives, facilitates and inhibits “fit†potential of LMSN configuration. The research output enhances managers’ understanding of the various forms of LMSN distribution configurations and assists in the identification of possible routes to establish configuration footprints across different LMSN forms to support their omni-channel retailing strategies. Further study can identify the critical contingency factors influencing configuration choices.
本专著开发了一种基于配置的类型学,描述了全渠道零售中最后一英里供应网络(LMSN)的分销配置。我们的目标是将那些与零散的理论体系脱节的相关术语整合起来,以描述LMSN的各种形式。对学术和实践文献进行了回顾,并辅以二次观察,以确定关键的配置维度。已建立的类型学和理论构建指南(例如,Doty和Glick, 1994)被用来发展类型学。提出的类型包括四种理想原型:简单LMSN、超本地LMSN、一站式LMSN和Protean LMSN。这四个维度分别是:(1)网络结构,(2)网络流,(3)关系治理,(4)服务架构。这里将其称为LMSN中的SHOP类型,每个原型都与一个或多个在每个原型的能力概要文件中详细阐述的核心物流能力相关联。类型学确定了有用的LMSN模式,使学者能够基于这四种配置开发模型和理论,并将他们的发现与特定的配置或跨配置联系起来,而不是在单独和不相关的研究上扩大努力。尽管如此,它结合了全渠道上下文的元素,更新了以前由Boyer和Hult(2005)开发的以 - œchainâ -€为中心的类型,并作为一个跳板,用于改进对驱动、促进和抑制 - œfitâ -€LMSN配置潜力的见解。研究结果增强了管理者对各种形式的LMSN分销配置的理解,并有助于确定可能的路线,以建立跨不同LMSN形式的配置足迹,以支持他们的全渠道零售战略。进一步的研究可以找出影响配置选择的关键偶然性因素。
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引用次数: 16
Performance Improvement in Health Care Organizations 医疗保健组织的绩效改进
Hummy Song, Anita L. Tucker
Performance improvement is an important organizational capability that is essential for health care organizations to achieve excellence on the three components of the Triple Aim: patient experience, health, and cost. In this monograph, we present a framework for performance improvement in health care organizations: the Model of Transformational Performance Improvement. This model takes a system-level approach to performance improvement and comprises six key components: (1) determining and communicating a system-level goal; (2) developing and using system-level performance measures; (3) understanding and managing interdependencies; (4) selecting a portfolio of projects aligned with system-level goals; (5) creating an organizational engine for improvement; and (6) implementing, spreading, and sustaining improvements. In addition to presenting this model, we review the operations management literature on performance improvement with a special focus on operations management tools and principles that may help with successful implementation of these six components. Though work has already been done in these areas, much remains unknown and many opportunities for future research exist. This monograph seeks to inform the research of operations management scholars and to equip clinicians and health care leaders with techniques that may be leveraged to improve performance in health care organizations.
绩效改进是一项重要的组织能力,对于医疗保健组织在“三重目标”的三个组成部分(患者体验、健康和成本)上实现卓越至关重要。在这个专著,我们提出了一个框架的绩效改进在医疗保健组织:转型绩效改进模型。该模型采用系统级方法来改进性能,包括六个关键部分:(1)确定并传达系统级目标;(2)制定和使用系统级绩效指标;(3)理解和管理相互依存关系;(4)选择与系统级目标一致的项目组合;(5)创建一个改进的组织引擎;(6)实施、推广和维持改进。除了介绍该模型之外,我们还回顾了有关性能改进的运营管理文献,特别关注运营管理工具和原则,这些工具和原则可能有助于成功实现这六个组件。虽然在这些领域已经做了很多工作,但仍有很多未知的地方,未来的研究还有很多机会。本专著旨在告知运营管理学者的研究,并为临床医生和医疗保健领导者提供可用于提高医疗保健组织绩效的技术。
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引用次数: 14
Integrated Modeling for Location Analysis 集成建模的位置分析
Ho‐Yin Mak, Z. Shen
Delivery of products and services relies on well-managed operations. In designing large-scaled supply chain and service systems, locations of key facilities are a critical decision, as these facilities form the backbone of operations of these systems. For example, a key to effective supply chain management is the deployment of a structurally well-designed facility network, consisting of plants, warehouses, retail stores, etc. The aim of the study of facility location is to develop analytical methodologies to inform the planning decisions for evaluating and selecting siting plans for these facilities that ensure both convenient provision of (or access to) products and services by customers and users, as well as efficient operations (i.e., low operating costs). design.
产品和服务的交付依赖于管理良好的运营。在设计大型供应链和服务系统时,关键设施的位置是一个关键的决定,因为这些设施构成了这些系统运行的支柱。例如,有效的供应链管理的关键是部署结构设计良好的设施网络,包括工厂、仓库、零售商店等。设施选址研究的目的是发展分析方法,为评估和选择这些设施选址计划的规划决策提供信息,以确保客户和用户方便地提供(或获得)产品和服务,以及有效的操作(即低操作成本)。设计。
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引用次数: 6
Matching Supply and Demand for Hospital Services 医院服务的供需匹配
D. Gupta, S. Potthoff
Hospitals are nearly synonymous with the idea of a healthcare delivery system. They provide three main types of services: surgical services, emergency services, and inpatient services. In addition, some hospitals have outpatient clinics and facilities in which specialist consults and surgical services are provided on an outpatient basis. What challenges do hospital managers face in matching supply and demand for hospital services while maintaining service quality and keeping costs low? To what extent and how has the Operations Management (OM) literature contributed to addressing these challenges? What are emerging trends in practice? What opportunities and additional challenges do they pose for the OM researchers? This monograph is the authors’ attempt to address the questions posed above. Although service capacity could very well be defined in terms of the numerical count of physical and human resources, we have chosen to focus on the three main types of services that hospitals provide. In doing so, we expose the interconnectedness of these services and the challenges that arise due to the cascading effects of mismatches in any one area on all other hospital operations. Our goal is to expose key issues from practitioner perspectives, use representative data to highlight problems that are amenable to modeling using operations management tools, summarize state of the art in modeling such problems, and identify opportunities for future research. The monograph underscores several important observations. First, hospital administrators need to consider forces affecting demand and supply for services both inside and outside the hospital walls. Specifically, the option to shape and smooth demand for services, which is often underutilized, may provide significant new opportunities to lower the cost of matching demand and supply. Second, hospitals need both careful advance planning, based on patterns observed in historical data, as well as dynamic response strategies to unfolding reality that forces inevitable deviations from plans. Effective dynamic response may require administrators to invest in building alliances with other hospitals and flexibility (e.g. contingent staff). Third, the role of hospitals is changing. Innovations in payment mechanisms that bundle payment to hospitals and doctors, and offer incentives for lowering costs, are creating the need to design and implement effective gainsharing plans. These same forces have also increased the importance for hospital administrators of choosing the right number and specialization of salaried physicians, and building alliances with both upstream (e.g. primary care clinics) and downstream (e.g. skilled nursing facilities) service providers. OM researchers have addressed some of these topics, but significant new opportunities abound.
医院几乎就是医疗保健服务系统的代名词。他们提供三种主要类型的服务:外科服务、急诊服务和住院服务。此外,一些医院设有门诊诊所和设施,在门诊的基础上提供专家会诊和手术服务。在保持服务质量和保持低成本的同时,医院管理者在匹配医院服务的供需方面面临什么挑战?运营管理(OM)文献在多大程度上以及如何有助于解决这些挑战?实践中的新趋势是什么?它们给OM研究人员带来了哪些机遇和额外的挑战?这本专著是作者试图解决上面提出的问题。虽然服务能力可以很好地根据物质和人力资源的数量来定义,但我们选择将重点放在医院提供的三种主要服务类型上。在这样做的过程中,我们暴露了这些服务的相互联系,以及由于任何一个领域的不匹配对所有其他医院业务的级联效应而产生的挑战。我们的目标是从实践者的角度揭示关键问题,使用具有代表性的数据来突出可以使用运营管理工具进行建模的问题,总结此类问题建模的最新技术,并确定未来研究的机会。该专著强调了几个重要的观察结果。首先,医院管理者需要考虑影响医院内外服务需求和供应的力量。具体地说,经常未得到充分利用的塑造和平滑服务需求的选择可能提供重要的新机会,以降低匹配需求和供应的成本。其次,医院既需要根据历史数据中观察到的模式进行仔细的预先规划,也需要动态的应对策略,以应对不断变化的现实,这些现实迫使人们不可避免地偏离计划。有效的动态反应可能需要管理人员投资于与其他医院建立联盟和灵活性(例如,特遣队人员)。第三,医院的角色正在发生变化。支付机制的创新将向医院和医生提供捆绑付款,并提供降低成本的激励措施,因此需要设计和实施有效的收益分享计划。这些力量也增加了医院管理人员选择适当数量和专业化的受薪医生,以及与上游(如初级保健诊所)和下游(如熟练护理机构)服务提供者建立联盟的重要性。OM的研究人员已经解决了其中的一些问题,但重要的新机会比比皆是。
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引用次数: 8
Management Systems Standards: Diffusion, Impact and Governance of ISO 9000, ISO 14000, and Other Management Standards 管理体系标准:iso9000、iso14000和其他管理标准的传播、影响和治理
Pavel Castka, C. Corbett
Management systems standards have become ubiquitous, adopted by millions of organizations around the world. The ISO 9000 and ISO 14000 quality and environmental management systems standards are the most well-known, but standards exist or are emerging for many other aspects of management too. Such a widespread phenomenon invites many questions. Key among those are why organizations adopt these standards, what effect they have on organizations, and how the standards themselves are managed. Although the literature investigating these standards is vast, it is scattered across many disciplines, and largely disjointed. This monograph provides a comprehensive overview of the empirical research on ISO 9000, ISO 14000, and other management standards, revolving around the three key questions above.
管理体系标准已经无处不在,被世界各地数以百万计的组织所采用。ISO 9000和ISO 14000质量和环境管理体系标准是最著名的,但管理的许多其他方面也存在或正在出现标准。如此普遍的现象引发了许多问题。其中的关键是为什么组织采用这些标准,它们对组织有什么影响,以及如何管理标准本身。尽管研究这些标准的文献数量庞大,但它们分散在许多学科中,而且在很大程度上是脱节的。本专著提供了对iso9000、iso14000和其他管理标准的实证研究的全面概述,围绕上述三个关键问题。
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引用次数: 77
Quantity Discounts: An Overview and Practical Guide for Buyers and Sellers 数量折扣:买方和卖方的概述和实用指南
Charles L. Munson, Jonathan E. Jackson
Sellers commonly provide price discounts for large orders; in fact, quantity discounts have existed as ubiquitous tools of commerce for hundreds of years. In some industries today, quantity discounts are more common than not in business-to-business transactions. For example, large discount retailers demand price breaks from their suppliers, and they typically then pass on a portion of the savings to final consumers. Practitioners face the issue from two sides. For sellers, what form of quantity discounts makes the most sense, and how should the discounts be priced? What role should quantity discounts play in the larger contract negotiation scheme? For buyers, how many units should be ordered when faced with a quantity discount schedule? And under what conditions should a buyer take the lead and attempt to negotiate a discount schedule from its supplier?
卖家通常会为大额订单提供价格折扣;事实上,数量折扣作为一种无处不在的商业工具已经存在了数百年。在今天的一些行业中,数量折扣在企业对企业的交易中更为常见。例如,大型折扣零售商要求供应商降价,然后他们通常会将节省的一部分转嫁给最终消费者。从业者从两个方面面对这个问题。对于卖家来说,哪种形式的数量折扣最合理,折扣应该如何定价?在较大的合同谈判方案中,数量折扣应发挥什么作用?对于买家来说,当面对数量折扣计划时,应该订购多少单位?在什么情况下,买家应该带头尝试与供应商谈判一个折扣计划?
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引用次数: 22
Production, Capacity, and Liquidity of a Self-Financed Firm 自筹资金企业的生产、产能和流动性
Jie Ning
We develop and analyze a dynamic stochastic model of a self-financed firm that optimizes its expected present value of dividends, profits, or a mixture of both. Each period the firm chooses how much to produce, to invest in capacity expansion, to distribute as a dividend, and to retain as liquidity subject to constraints from existing capacity and capital. Product-market prices and yields of capacity-enhancing investments are Markov-modulated. We show that linearity assumptions regarding investment yield and production cost imply that the value function has an affine structure. This leads to a complete characterization of an optimal policy and a linear program that exorcises the curse of dimensionality. We clarify the linkage between capacity and capital in a dynamic framework and provide real option interpretations. We prove that profit maximization induces a more aggressive investment attitude than does maximization of dividends.
我们开发并分析了一个自筹资金的公司的动态随机模型,该模型优化了股息、利润或两者混合的预期现值。在每个时期,企业选择生产多少,投资于产能扩张,作为股息分配多少,以及在现有产能和资本的约束下作为流动性保留多少。提高产能投资的产品市场价格和收益是马尔可夫调制的。我们证明了关于投资收益和生产成本的线性假设意味着价值函数具有仿射结构。这导致了对最优策略和线性规划的完整描述,从而消除了维度的诅咒。我们在动态框架中阐明了能力和资本之间的联系,并提供了实物期权解释。我们证明了利润最大化比股息最大化更能诱导积极的投资态度。
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引用次数: 0
Designing and Controlling the Outsourced Supply Chain 外包供应链的设计与控制
A. Tsay
All organizations outsource. They differ only in the scope and extent of what they procure as goods and services from outside entities. These choices drive an organization's financial performance and long-term competitive viability, and establish the tenor of day-to-day operations. Outsourcing can solve many problems, but is also fraught with hidden costs and risks. This monograph examines outsourcing from a lifecycle perspective. This means tracing the full arc from the germination of the idea to outsource, to the assessment of options, to the installation of control mechanisms, to grappling with conflicts that inevitably arise over time, all the way to the sunset of the chosen strategy. The analysis is highly attentive to the details of operational execution, especially regarding how human resources participate in these decision processes and are impacted by the choices made. The lifecycle discussion applies regardless of the type of business process considered for outsourcing. This has standalone value, but also serves as a preamble to the topic from which this monograph derives its title: outsourcing in the endeavor of stewarding a product from concept to market and then operating the resulting supply chain. Specifically, this monograph looks deeply at the outsourcing of manufacturing, product design, materials procurement, and logistics. This monograph also presents the phenomenon of offshoring in order to dispel the common confusion between outsourcing and offshoring. Both can be pursued simultaneously ("offshore outsourcing"), and this monograph makes clear which benefits and risks are due to offshoring and which are due to outsourcing. This monograph targets scholars and practitioners at once, guided by a belief that both communities will benefit from a treatment of outsourcing that ties together ideas from theory and extensive industrial evidence. Highlights include extended case studies featuring Amazon, Apple, Boeing, Cisco, Foxconn, Menu Foods, Nike, and Toysrus.com, with significant supporting appearances by more than fifty other firms from diverse industries and countries.
所有组织都外包。它们的不同之处在于它们从外部实体采购的商品和服务的范围和程度。这些选择驱动组织的财务绩效和长期竞争能力,并建立日常运营的基调。外包可以解决许多问题,但也充满了隐藏的成本和风险。这本专著从生命周期的角度考察外包。这意味着要追踪从想法萌芽到外包,到评估选项,到安装控制机制,到处理随着时间的推移不可避免地出现的冲突,一直到所选策略的日落。分析高度关注操作执行的细节,特别是关于人力资源如何参与这些决策过程以及如何受到所做选择的影响。无论考虑外包的业务流程类型如何,生命周期讨论都适用。这有独立的价值,但也可以作为本专著标题的主题的序言:外包在管理产品从概念到市场的努力中,然后运营由此产生的供应链。具体来说,这本专著深入研究了制造、产品设计、材料采购和物流的外包。本专著还介绍了离岸外包现象,以消除外包和离岸外包之间的常见混淆。两者可以同时进行(“离岸外包”),并且本专著明确了哪些利益和风险是由于离岸外包,哪些是由于外包。这本专著同时面向学者和实践者,其指导思想是,将理论和广泛的工业证据结合起来的外包理念将使两个群体都受益。亮点包括亚马逊、苹果、波音、思科、富士康、Menu Foods、耐克和Toysrus.com的扩展案例研究,以及来自不同行业和国家的50多家其他公司的重要支持。
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引用次数: 34
期刊
Foundations and Trends in Technology, Information and Operations Management
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