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21.
Harish Guda Milind Dawande Ganesh Janakiraman Kyung Sung Jung 《Production and Operations Management》2016,25(7):1194-1202
We consider the stochastic, single‐machine earliness/tardiness problem (SET), with the sequence of processing of the jobs and their due‐dates as decisions and the objective of minimizing the sum of the expected earliness and tardiness costs over all the jobs. In a recent paper, Baker ( 2014 ) shows the optimality of the Shortest‐Variance‐First (SVF) rule under the following two assumptions: (a) The processing duration of each job follows a normal distribution. (b) The earliness and tardiness cost parameters are the same for all the jobs. In this study, we consider problem SET under assumption (b). We generalize Baker's result by establishing the optimality of the SVF rule for more general distributions of the processing durations and a more general objective function. Specifically, we show that the SVF rule is optimal under the assumption of dilation ordering of the processing durations. Since convex ordering implies dilation ordering (under finite means), the SVF sequence is also optimal under convex ordering of the processing durations. We also study the effect of variability of the processing durations of the jobs on the optimal cost. An application of problem SET in surgical scheduling is discussed. 相似文献
22.
Ganesh Natarajan 《Global Business and Organizational Excellence》2016,35(6):36-42
When the managers of Zensar Technologies in western India set out to establish their firm as a leader in the competitive global business process outsourcing market, they implemented Vision Communities to improve organizational focus, flexibility, and performance through enhanced employee participation and societal involvement. The company's triple bottom line approach to profits, people, and the planet is rooted in a “philosophy of love” value system that motivates associates at all levels and fosters an engaging work environment characterized by mutual respect, transparency, innovation, passion for excellence, corporate social responsibility, and fun. © 2016 Wiley Periodicals, Inc. 相似文献
23.
We study dual sourcing inventory systems with backordering and with stationary, stochastic demands. The two supply sources differ in their unit prices and lead times. We focus on the option of making costless returns to the cheaper, longer leadtime supplier. We show that the value of this option is zero. Our analysis leading to this result includes the derivation of several structural properties of the optimal policies for dual sourcing systems with and without the return option. 相似文献
24.
Shivam Gupta Milind Dawande Ganesh Janakiraman Ashutosh Sarkar 《Production and Operations Management》2017,26(10):1803-1818
Among the various governmental schemes that support agriculture, support prices have been adopted by many developing countries. A support price for an agricultural crop is a guaranteed price at which a governmental entity agrees to purchase that crop from farmers. Despite this surety, a surprising practice of “distressed” selling 1 1 A 1‐minute news clip on distressed selling is available at: https://www.youtube.com/watch?v=U2lr5rBTpaU
has been widely observed in practice: Farmers sell a significant portion of their crops to outside agents at prices much lower than the support price. We build a tractable stochastic dynamic programming model that captures the salient features of the ground realities—limited as well as uncertain procurement capacity, high holding costs for the farmers, and lack of affordable credit—that conspire to induce distressed selling and, consequently, a significant loss of welfare of the farmers. Using real data on procurement under a support‐price program, we establish the accuracy of our model's prediction on the volume of distressed sales. Finally, we show how our model and its solution can serve as a simple and useful tool for policy‐makers to assess the relative impact of the improvements in the main determinants of distressed sales. 相似文献
has been widely observed in practice: Farmers sell a significant portion of their crops to outside agents at prices much lower than the support price. We build a tractable stochastic dynamic programming model that captures the salient features of the ground realities—limited as well as uncertain procurement capacity, high holding costs for the farmers, and lack of affordable credit—that conspire to induce distressed selling and, consequently, a significant loss of welfare of the farmers. Using real data on procurement under a support‐price program, we establish the accuracy of our model's prediction on the volume of distressed sales. Finally, we show how our model and its solution can serve as a simple and useful tool for policy‐makers to assess the relative impact of the improvements in the main determinants of distressed sales. 相似文献
25.
Ganesh Narkhede;Cherian Samuel;Sonal Mahajan;Devika Verma;Nitin Sakhare;Tansen Chaudhari; 《BUSINESS STRATEGY & DEVELOPMENT》2024,7(2):e397
An increasing number of sociopolitical issues, including international wars, armed conflicts, decoupling of economic powers, deglobalization, nationalism, protectionism, sanctions, tariff wars, political tensions, and other sociopolitical forces affecting global supply chains (GSCs) and supply chain management (SCM) strategies. Amidst these sociopolitical factors, the global trade landscape is undergoing a seismic shift. This paper examines the complex web of these sociopolitical aspects, their impact on SCM strategies, and their implications for GSCs. The systematic literature review approach is used for this research, which entails the following steps: selecting and assessing pertinent sources, summarizing and synthesizing the literature, examining challenges and opportunities, articulating conclusions, and pinpointing prospective directions for future research. The findings of this study reveal that these sociopolitical factors have significant impacts on multiple facets of SCM, such as sourcing strategies, supplier relationships, risk management, and overall supply chain resilience. In addition, the study presents a roadmap for businesses to effectively navigate these difficulties, which involves diversifying supply chain networks, integrating corporate sustainability strategies, and implementing environmental, social, and governance factors into business operations. The originality of this research lies in its integrated and holistic approach to the integration of sociopolitical factors into SCM theory and practice. 相似文献
26.
Social contagion effects due to geographical proximity refer to the social effects wherein the behavior of an individual varies with the behavior of other individuals who are geographically close. Although the influence of such effects on consumer choices has been established in several contexts, much of the extant studies have focused on its effect on consumers’ decision of whether to buy a new product or adopt a new innovation. There has been no systematic examination of the influence of geographic proximity on other aspects of consumers’ product buying process such as what to buy (i.e., brand choice), how to buy (i.e., the channel), and where to buy (i.e., retailers). Such effects can matter significantly in high‐technology and durable goods markets and therefore, it is critical to understand the scope of these on consumers’ choice of retailers and channel as well. Drawing on literatures from word of mouth effects, ecommerce, and consumers’ perception of risk in their purchase process, we develop a set of hypotheses on the effect of geographic proximity on consumers’ choices of what to buy, how to buy, and where to buy. Leveraging a microlevel dataset of purchases of personal computers, we develop brand‐, retailer‐, and channel‐related measures of proximity effects at the individual consumer level and estimate a joint disaggregate model of the three choices that make up a product purchase process to test these hypotheses. Our results indicate a significant contagion effect on each of the three choices. Furthermore, we find evidence of a greater effect of geographic proximity on inexperienced consumers—those who are new to the product category. Our results thus help develop a holistic understanding of the influence of social contagion effects on consumers’ decision making. 相似文献
27.
Milind Dawande Ganesh Janakiraman Anyan Qi Qi Wu 《Production and Operations Management》2019,28(6):1431-1445
Motivated by the ever‐growing complexity of projects and the consistent trend of outsourcing of individual tasks or components, we study the contract‐design problem faced by a firm (or organization) for executing a project consisting of multiple tasks, each of which is performed by an individual contractor whose efforts (work‐rates) are not observable. While the contractors incur costs continuously during the course of their tasks, the firm realizes its reward or revenue only when the entire project is (i.e., all tasks are) completed. The firm’s contract‐design decisions and the contractors’ effort‐level decisions are all governed by the goals of maximizing the respective party’s expected discounted profit. We adopt the framework in Kwon et al. (2010a) and Chen et al. (2015), and derive optimal contracts for both parallel projects (tasks can be performed in parallel) and sequential projects (tasks have to be performed sequentially). The simplicity of the contracts we obtain suggests that there is potential for designing profit‐maximizing contracts without paying a price in terms of contract complexity. 相似文献
28.
Ganesh Narkhede;Sonal Mahajan;Rupesh Narkhede;Tansen Chaudhari; 《BUSINESS STRATEGY & DEVELOPMENT》2024,7(1):e325
Industry 4.0 (I4.0) has brought transformative changes in the manufacturing sector. This paper aims to provide a comprehensive analysis of the applications of I4.0 technologies in major work functions of small and medium-sized enterprises (SMEs). Specifically, this review focuses on the suitability of I4.0 technologies in areas such as New Product Development, Supply Chain Management, Internal Logistics Management, Production Planning Execution and Control, Quality Management, and Maintenance Management. This study employs a systematic literature review (SLR) methodology to comprehensively analyze relevant sources to present valuable perspectives and practical suggestions customized to the requirements of different essential work functions within manufacturing SMEs. The findings of SLR indicate that Big Data Analytics (BDA), Robotics, and Automation are perceived as highly sustainable, on the other hand, blockchain and cloud technology are viewed as having lower sustainability from SMEs' point of view. The findings presented in this article have several theoretical and practical implications including technology selection and integration, and considering sustainability and ethics. This will allow SMEs to seamlessly integrate distinct I4.0 technologies along three dimensions: vertical, horizontal, and end-to-end digital integration. This article intends to provide an unbiased assessment to ascertain the landscape occupied by I4.0 in the context of SMEs. This article highlights the connection and synergy between I4.0 and SMEs as well as the pertinence of how advanced technologies of I4.0 can influence the business processes in manufacturing SMEs. 相似文献