/pdf/convex-analysisnoer-san-nojin-zhan-nituite-5dl2rbmoyr.pdf

Convex Analysisの二,三の進展について

行銷硏究 : Marketing research

Perspectives in supply chain risk management

This paper is a review of research in product development, which we define as the transformation of a market opportunity into a product available for sale. Our review is broad, encompassing work in the academic fields of marketing, operations management, and engineering design. The value of this breadth is in conveying the shape of the entire research landscape. We focus on product development projects within a single firm. We also devote our attention to the development of physical goods, although much of the work we describe applies to products of all kinds. We look inside the "black box" of product development at the fundamentaldecisions that are made by intention or default. In doing so, we adopt the perspective of product development as a deliberate business process involving hundreds of decisions, many of which can be usefully supported by knowledge and tools. We contrast this approach to prior reviews of the literature, which tend to examine the importance of environmental and contextual variables, such as market growth rate, the competitive environment, or the level of top-management support.

/pdf/product-development-decisions-a-review-of-the-literature-1jhatri7bn.pdf

Product Development Decisions: A Review of the Literature

This paper reports on a qualitative field study of 16 hospitals implementing an innovative technology for cardiac surgery. We examine how new routines are developed in organizations in which existing routines are reinforced by the technological and organizational context All hospitals studied had top-tier cardiac surgery departments with excellent reputations and patient outcomes yet exhibited striking differences in the extent to which they were able to implement a new technology that required substantial changes in the operating-room-team work routine. Successful implementers underwent a qualitatively different team learning process than those who were unsuccessful. Analysis of qualitative data suggests that implementation involved four process steps: enrollment, preparation, trials, and reflection. Successful implementers used enrollment to motivate the team, designed preparatory practice sessions and early trials to create psychological safety and encourage new behaviors, and promoted shared meaning a...

Disrupted Routines: Team Learning and New Technology Implementation in Hospitals:

A global economy and increase in customer expectations in terms of cost and services have put a premium on effective supply chain reengineering. It is essential to perform risk-benefit analysis of reengineering alternatives before making a final decision. Simulation provides an effective pragmatic approach to detailed analysis and evaluation of supply chain design and management alternatives. However, the utility of this methodology is hampered by the time and effort required to develop models with sufficient fidelity to the actual supply chain of interest. In this paper, we describe a supply chain modeling framework designed to overcome this difficulty. Using our approach, supply chain models are composed from software components that represent types of supply chain agents (e.g., retailers, manufacturers, transporters), their constituent control elements (e.g., inventory policy), and their interaction protocols (e.g., message types). The underlying library of supply chain modeling components has been derived from analysis of several different supply chains. It provides a reusable base of domain-specific primitives that enables rapid development of customized decision support tools.

/pdf/modeling-supply-chain-dynamics-a-multiagent-approach-413i21ayvo.pdf

Modeling Supply Chain Dynamics: A Multiagent Approach

We study a firm that makes new products in the first period and uses returned cores to offer remanufactured products, along with new products, in future periods. We introduce the monopoly environment in two-period and multiperiod scenarios to identify thresholds in remanufacturing operations. Next, we focus our attention on the duopoly environment where an independent operator (IO) may intercept cores of products made by the original equipment manufacturer (OEM) to sell remanufactured products in future periods. We characterize the production quantities associated with self-selection and explore the effect of various parameters in the Nash equilibrium. Among other results, we find that if remanufacturing is very profitable, the original-equipment manufacturer may forgo some of the first-period margin by lowering the price and selling additional units to increase the number of cores available for remanufacturing in future periods. Further, as the threat of competition increases, the OEM is more likely to completely utilize all available cores, offering the remanufactured products at a lower price.

/pdf/managing-new-and-remanufactured-products-93uqvzm7o6.pdf

Managing New and Remanufactured Products

We analyze a scenario where a manufacturer with a traditional channel partner opens up a direct channel in competition with the traditional channel. We first consider that in order to mitigate channel conflict the manufacturer, who chooses wholesale prices as a Stackelberg leader, commits to setting a direct channel retail price that matches the retailer’s price in the traditional channel. We find that the specific equal-pricing strategy that optimizes profits for the manufacturer is also preferred by the retailer and customers over other equal-pricing strategies. We next consider the implications of the equal-pricing constraint through a numerical experiment that indicates that the equal-pricing strategy is appropriate as long as the Internet channel is significantly less convenient than the traditional channel. If the Internet channel is of comparable convenience to the traditional channel, then the manufacturer has tremendous incentive to abandon the equal-pricing policy, at great peril to the traditional retailer.

/pdf/boiling-frogs-pricing-strategies-for-a-manufacturer-adding-a-3w2t0dr89t.pdf

Boiling Frogs: Pricing Strategies for a Manufacturer Adding a Direct Channel that Competes with the Traditional Channel

Experimentation, a form of problem-solving, is a fundamental innovation activity and accounts for a significant part of total innovation cost and time. In many fields, the economics of experimentation are being radically affected by the use of new and greatly improved versions of methods such as computer simulation, mass screening, and rapid prototyping. This paper shows that a given experiment (and the related trial and error learning) can be conducted in different "modes" (e.g., computer simulation and rapid prototyping) and that users will find it economical to optimize the switching between these modes as to reduce total product development cost and time. The findings are confirmed by a large-scale empirical study of the experimentation process in the design of integrated circuits containing either (1) electrically programmable logic devices (EPLDs); or (2) application-specific integrated circuits (ASICs). In comparing their different experimentation strategies for analogous design projects, I found that the former (EPLD)-an approach that utilizes many prototype iterations-outperformed the latter (ASIC) by factor of 2.2 (in person-months) and over 43 percent of that difference can be attributed to differences in experimentation strategies. The implications for managerial practice and theory are discussed and suggestions for further research undertakings are provided.

Managing Experimentation in the Design of New Products

Supply chain management is likely to play an important role in the digital economy. In this paper, we first describe major issues in traditional supply chain management. Next, we focus our attention on the supply chain issues of visibility, supplier relationships, distribution and pricing, customization, and real-time decision technologies that have risen to importance with the prevalence of e-business. We present an overview of relevant analytical research models that have been developed in these areas, discuss their contributions, and conclude with a discussion on future modeling opportunities in this area.

/pdf/models-for-supply-chains-in-e-business-2vsyhzivof.pdf

Jayashankar M. Swaminathan

Papers

Modeling Supply Chain Dynamics: A Multiagent Approach

Managing New and Remanufactured Products

Boiling Frogs: Pricing Strategies for a Manufacturer Adding a Direct Channel that Competes with the Traditional Channel

Managing Experimentation in the Design of New Products

Models for Supply Chains in E-Business