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Papers by prerna gautam

Research paper thumbnail of Optimal inventory replenishment policies for deteriorating items with preservation technology under the effect of advertisement and price reliant demand

International Journal of Systems Science: Operations & Logistics, Mar 21, 2023

Research paper thumbnail of Operations Management Interventions in Cancer Care Delivery in LMICs: The Way Forward

Asian Pacific Journal of Cancer Prevention

Cancer care sector has received significant attention worldwide after an increase in cancer incid... more Cancer care sector has received significant attention worldwide after an increase in cancer incidence and related mortality every year. There is a large disparity in access to care for cancer patients in view of increasing case number, limited and urban centric cancer care facilities and resource intensive management of cancer along with many other sociodemographic factors. Cancer care delivery is facing many operational challenges at different steps of care globally and it is more pronounced in LMICs. Research directed towards Operations Management (OM) research can provide solutions to many of the challenges encountered during different steps of cancer care and can help us to manage cancer care delivery landscape with cost cutting and quality improvement. The promising abilities of OM is often overlooked for improving various aspects of cancer care despite the fact that its deployment can create OM surplus where the capitals can be tapped to improve the quality of care for the cancer patients. This paper discusses that fundamentals of OM principles must be implemented for creating resilience and gaining effectiveness and efficiency throughout the cancer care operations.

Research paper thumbnail of Sustainable production inventory model with greening degree and dual determinants of defective items

Journal of Cleaner Production

Research paper thumbnail of Inventory Models for Imperfect Quality Items: A Two-Decade Review

Advances in Interdisciplinary Research in Engineering and Business Management, 2021

Research paper thumbnail of Optimal inventory strategies for an imperfect production system with advertisement and price reliant demand under rework option for defectives

RAIRO - Operations Research, 2021

Every industrial sector emits carbon emissions during production, which is always a major concern... more Every industrial sector emits carbon emissions during production, which is always a major concern for environmental practitioners. To resolve this, innovative and smart ways are required that are not only cost-effective but also environmentally savvy. Moreover, the production processes are also prone to various imperfections, and thus the production of defectives is quite pragmatic. The handling of such defective products varies from industry to industry and type of products. The present study constructs an inventory model to handle the defective products via a proficient rework strategy that makes the product fit to be sold at the primary price. Here, the demand for the product is assumed to be dependent on the selling price and advertisements. The model also considers the energy usage during the production and the cost of carbon emissions while optimizing the production batch size and selling price. Optimality is proved graphically by using the software Mathematica 11.3.0. A compr...

Research paper thumbnail of Sustainable production strategies for deteriorating and imperfect quality items with an investment in preservation technology

International Journal of System Assurance Engineering and Management, 2021

Research paper thumbnail of Coordinating vendor-buyer decisions for imperfect quality items considering trade credit and fully backlogged shortages

AIP Conference Proceedings, 2016

Supply chain management has become a critical issue for modern business environments. In today’s ... more Supply chain management has become a critical issue for modern business environments. In today’s world of cooperative decision-making, individual decisions in order to reduce inventory costs may not lead to an overall optimal solution. Coordination is necessary among participants of supply chain to achieve better performance. There are legitimate and important efforts from the vendor to enhance the relation with buyer; one such effort is offering trade credit which has been a driver of growth and development of business between them. The cost of financing is a core consideration in effective financial management, in general and in context of business. Also, due to imperfect production a vendor may produce defective items which results in shortages. Motivated with these aspects, an integrated vendor-buyer inventory model is developed for imperfect quality items with allowable shortages; in which the vendor offers credit period to the buyer for payment. The objective is to minimize the total joint annual co...

Research paper thumbnail of Credit financing for deteriorating imperfect-quality items under inflationary conditions

International Journal of Services Operations and Informatics, 2011

In today's technology-driven world, despite of efficient planning of manufacturing system and eme... more In today's technology-driven world, despite of efficient planning of manufacturing system and emergence of sophisticated production methods and control systems; the items produced have some fraction of defectives. However, these defective items can be removed from the lot through a screening process. Thus, the inspection of lot becomes essential, especially when items are deteriorating in nature. Further, in today's uncertain global economy, due to rising inflation there is a consequent decline in the real value of money, which eventually forces the supplier to provide an attractive tradecredit policy to the retailer. Keeping this scenario in mind, an attempt has been made to formulate an inventory policy for a retailer dealing with imperfect quality items of deteriorating nature under inflation and permissible delay in payments. Results have been demonstrated with the help of a numerical example and sensitivity analysis is also presented to provide managerial insights into practice.

Research paper thumbnail of Reimagining India’s Cold Chain Sector and its Contribution to Atmanirbhar Bharat and Global Supply Chain Trends

International Journal of Procurement Management

Research paper thumbnail of A Study on Imperfect Production System Under Maintenance Strategies and Warranty

Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques

In every production system, malfunctioning or breakdown during run time can incur heavy loss to t... more In every production system, malfunctioning or breakdown during run time can incur heavy loss to the organization, to overcome such a situation it is crucial to use maintenance actions which can be either corrective or preventive depending upon the condition of the system. Also, warranty policy is extensively used world-wide to increase customer confidence in the product and to uplift sales. On account of this, the present chapter presents a problem of a manufacturer dealing with an imperfect production system considering maintenance actions and warranty policy by trading off the rework cost, holding cost, warranty cost and corrective/preventive maintenance cost so as to minimize the manufacturer's total cost. Numerical analysis and sensitivity analysis is performed to showcase model features.

Research paper thumbnail of Credit Policies for Deteriorating Imperfect Quality Items With Exponentially Increasing Demand and Partial Backlogging

Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques

In retail industries every ordered lot carry some fraction of imperfect quality items which can v... more In retail industries every ordered lot carry some fraction of imperfect quality items which can vary depending upon production and handling conditions. The situation is even more subtle when the items are prone to deterioration. However, an inspection process can spare us from such a criticality by bifurcating the defectives from the good quality lot. Thus, a screening process is mandatory. In the hyper-competitive market, trade-credit is well-known gimmick in order to boost the sales. Keeping in view, an inventory scenario of a retailer is investigated who has to deal with imperfect and “deteriorating items” under “permissible delay in payments”. The demand is assumed to be increasing exponentially. Shortages are permitted to occur and supposed to be “partially backlogged.” Rate of backlogging is assumed to have inverse relation with the waiting time for the subsequent replenishment. In this chapter, shortage point and length of cycle are jointly optimized. Numerical analysis and s...

Research paper thumbnail of COVID-19: A Bibliometric Analysis and Insights

International Journal of Mathematical, Engineering and Management Sciences

The current outbreak of the coronavirus disease has left the whole world traumatised. The illness... more The current outbreak of the coronavirus disease has left the whole world traumatised. The illness triggered by the novel coronavirus is named as COVID-19. It is pre-fixed with the word “novel” because it comes under the new strain of the virus that has not been reported before. This virus outbreak has disrupted human life in the most petrifying way worldwide. The present study aims to analyse the work done in this field through a state-of-the-art review of articles based on COVID-19 and discuss the current trends in the epidemiology of this disease entity with special reference to India and the effects of this pandemic on the environment. The time frame selected for review is the beginning of this pandemic to April 10th, 2020. Scopus® database is used to carry out the analysis. Moreover, the most contributed authors, institutions, countries, etc. are showed through the analysis. The purpose of this review is to get an idea about the direction of the flow of current research, the ass...

Research paper thumbnail of An integrated green supply chain model with product recovery management towards a cleaner system

Journal of Cleaner Production

Research paper thumbnail of Role of Big Data Analytics in supply chain management: current trends and future perspectives

International Journal of Production Research

Research paper thumbnail of An integrated inventory model for imperfect production system incorporating marketing decisions with an investment in preservation technology

International Journal of Services Operations and Informatics

Research paper thumbnail of Inventory Decisions for Imperfect Quality Deteriorating Items with Exponential Declining Demand Under Trade Credit and Partially Backlogged Shortages

Quality, IT and Business Operations

Research paper thumbnail of Inventory and pricing decisions for an imperfect production system with quality inspection, rework, and carbon-emissions

Yugoslav Journal of Operations Research

The present paper considers the effect of imperfect quality items on a production system which fu... more The present paper considers the effect of imperfect quality items on a production system which further undergoes inspection and rework. The demand of the product is price reliant. Two situations to handle the imperfect items are analyzed: selling them at a reduced price and reworking them. The demand is assumed to meet with perfect products in either case. Further, the study incorporates the carbon-emissions borne during production of goods and their holding in the inventory system. The model aims at maximizing the profit function by jointly optimizing mark-up price and production quantity. To demonstrate model characteristics, numerical and sensitivity analysis are also presented.

Research paper thumbnail of Preservation technology investment for an inventory system with variable deterioration rate under expiration dates and price sensitive demand

Yugoslav Journal of Operations Research

The proposed study addresses a supplier-retailer inventory problem by considering the detrimental... more The proposed study addresses a supplier-retailer inventory problem by considering the detrimental impacts of deterioration. The inventory produced by the supplier undergo a machine-shift and hence, produces non-conforming items. The retailer uses the preservation technology to deal with deteriorating items ingeniously where the demand is price-sensitive at the buyers end. Two models are developed through different means viz. Integrated and Bi-level approach and compared so to impart some constructive organizational insights. Sensitivity analysis was done over a numerical example to validate strength of the developed models.

Research paper thumbnail of Sustainable production policies under the effect of volume agility, preservation technology, and price-reliant demand

Yugoslav Journal of Operations Research

Any supply chain supposes production and pricing decisions. The most influential factor that affe... more Any supply chain supposes production and pricing decisions. The most influential factor that affects a sales decision is the price of a product, which in turn, affects the configuration of the demand. Further, holding the produced goods means also the occurrence of deterioration as a common phenomenon, which may lead to excessive loss if left untreated. Thus, an investment in preservation process helps in controlling deterioration efficiently. Moreover, incorporation of the environmental factor presents the need of the hour in the current situation of environmental imbalance. To address the above issues, we consider volume agility to avoid any excessive storage and backlogging costs, carbon-emissions and energy-usage to address the performance of our model regarding the environment, and investment in preservation process to control the loss due to deterioration. Also, the demand of the product is taken as price-reliant. The investment in preservation, production rate, and price of t...

Research paper thumbnail of Sustainable inventory policy for an imperfect production system with energy usage and volume agility

International Journal of System Assurance Engineering and Management

A sustainable production inventory model that addresses some of the pragmatic scenarios of the pr... more A sustainable production inventory model that addresses some of the pragmatic scenarios of the production process is developed. The production process is considered imperfect which results in the production of some imperfect quality items with known distribution. The imperfect products are managed through an efficient rework process that makes the items suitable to be vended at their original markup price only. The agile nature of the manufacturing process is considered. And, the energy usage and carbon emission in the production process is also considered. Undoubtedly, the fundamental nature of demand is sensitive to price. Thus, the model incorporates the demand to be price-contingent. The objective is to maximize the overall inventory turnover by conjointly optimizing the selling price, production rate, and production time. A numerical example is included to validate the model. Further, the sensitivity analysis unfolds valuable managerial insights for decision-makers. Findings suggest that the model with the insertion of volume agility effect performs better when compared with the one without the volume agility.

Research paper thumbnail of Optimal inventory replenishment policies for deteriorating items with preservation technology under the effect of advertisement and price reliant demand

International Journal of Systems Science: Operations & Logistics, Mar 21, 2023

Research paper thumbnail of Operations Management Interventions in Cancer Care Delivery in LMICs: The Way Forward

Asian Pacific Journal of Cancer Prevention

Cancer care sector has received significant attention worldwide after an increase in cancer incid... more Cancer care sector has received significant attention worldwide after an increase in cancer incidence and related mortality every year. There is a large disparity in access to care for cancer patients in view of increasing case number, limited and urban centric cancer care facilities and resource intensive management of cancer along with many other sociodemographic factors. Cancer care delivery is facing many operational challenges at different steps of care globally and it is more pronounced in LMICs. Research directed towards Operations Management (OM) research can provide solutions to many of the challenges encountered during different steps of cancer care and can help us to manage cancer care delivery landscape with cost cutting and quality improvement. The promising abilities of OM is often overlooked for improving various aspects of cancer care despite the fact that its deployment can create OM surplus where the capitals can be tapped to improve the quality of care for the cancer patients. This paper discusses that fundamentals of OM principles must be implemented for creating resilience and gaining effectiveness and efficiency throughout the cancer care operations.

Research paper thumbnail of Sustainable production inventory model with greening degree and dual determinants of defective items

Journal of Cleaner Production

Research paper thumbnail of Inventory Models for Imperfect Quality Items: A Two-Decade Review

Advances in Interdisciplinary Research in Engineering and Business Management, 2021

Research paper thumbnail of Optimal inventory strategies for an imperfect production system with advertisement and price reliant demand under rework option for defectives

RAIRO - Operations Research, 2021

Every industrial sector emits carbon emissions during production, which is always a major concern... more Every industrial sector emits carbon emissions during production, which is always a major concern for environmental practitioners. To resolve this, innovative and smart ways are required that are not only cost-effective but also environmentally savvy. Moreover, the production processes are also prone to various imperfections, and thus the production of defectives is quite pragmatic. The handling of such defective products varies from industry to industry and type of products. The present study constructs an inventory model to handle the defective products via a proficient rework strategy that makes the product fit to be sold at the primary price. Here, the demand for the product is assumed to be dependent on the selling price and advertisements. The model also considers the energy usage during the production and the cost of carbon emissions while optimizing the production batch size and selling price. Optimality is proved graphically by using the software Mathematica 11.3.0. A compr...

Research paper thumbnail of Sustainable production strategies for deteriorating and imperfect quality items with an investment in preservation technology

International Journal of System Assurance Engineering and Management, 2021

Research paper thumbnail of Coordinating vendor-buyer decisions for imperfect quality items considering trade credit and fully backlogged shortages

AIP Conference Proceedings, 2016

Supply chain management has become a critical issue for modern business environments. In today’s ... more Supply chain management has become a critical issue for modern business environments. In today’s world of cooperative decision-making, individual decisions in order to reduce inventory costs may not lead to an overall optimal solution. Coordination is necessary among participants of supply chain to achieve better performance. There are legitimate and important efforts from the vendor to enhance the relation with buyer; one such effort is offering trade credit which has been a driver of growth and development of business between them. The cost of financing is a core consideration in effective financial management, in general and in context of business. Also, due to imperfect production a vendor may produce defective items which results in shortages. Motivated with these aspects, an integrated vendor-buyer inventory model is developed for imperfect quality items with allowable shortages; in which the vendor offers credit period to the buyer for payment. The objective is to minimize the total joint annual co...

Research paper thumbnail of Credit financing for deteriorating imperfect-quality items under inflationary conditions

International Journal of Services Operations and Informatics, 2011

In today's technology-driven world, despite of efficient planning of manufacturing system and eme... more In today's technology-driven world, despite of efficient planning of manufacturing system and emergence of sophisticated production methods and control systems; the items produced have some fraction of defectives. However, these defective items can be removed from the lot through a screening process. Thus, the inspection of lot becomes essential, especially when items are deteriorating in nature. Further, in today's uncertain global economy, due to rising inflation there is a consequent decline in the real value of money, which eventually forces the supplier to provide an attractive tradecredit policy to the retailer. Keeping this scenario in mind, an attempt has been made to formulate an inventory policy for a retailer dealing with imperfect quality items of deteriorating nature under inflation and permissible delay in payments. Results have been demonstrated with the help of a numerical example and sensitivity analysis is also presented to provide managerial insights into practice.

Research paper thumbnail of Reimagining India’s Cold Chain Sector and its Contribution to Atmanirbhar Bharat and Global Supply Chain Trends

International Journal of Procurement Management

Research paper thumbnail of A Study on Imperfect Production System Under Maintenance Strategies and Warranty

Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques

In every production system, malfunctioning or breakdown during run time can incur heavy loss to t... more In every production system, malfunctioning or breakdown during run time can incur heavy loss to the organization, to overcome such a situation it is crucial to use maintenance actions which can be either corrective or preventive depending upon the condition of the system. Also, warranty policy is extensively used world-wide to increase customer confidence in the product and to uplift sales. On account of this, the present chapter presents a problem of a manufacturer dealing with an imperfect production system considering maintenance actions and warranty policy by trading off the rework cost, holding cost, warranty cost and corrective/preventive maintenance cost so as to minimize the manufacturer's total cost. Numerical analysis and sensitivity analysis is performed to showcase model features.

Research paper thumbnail of Credit Policies for Deteriorating Imperfect Quality Items With Exponentially Increasing Demand and Partial Backlogging

Handbook of Research on Promoting Business Process Improvement Through Inventory Control Techniques

In retail industries every ordered lot carry some fraction of imperfect quality items which can v... more In retail industries every ordered lot carry some fraction of imperfect quality items which can vary depending upon production and handling conditions. The situation is even more subtle when the items are prone to deterioration. However, an inspection process can spare us from such a criticality by bifurcating the defectives from the good quality lot. Thus, a screening process is mandatory. In the hyper-competitive market, trade-credit is well-known gimmick in order to boost the sales. Keeping in view, an inventory scenario of a retailer is investigated who has to deal with imperfect and “deteriorating items” under “permissible delay in payments”. The demand is assumed to be increasing exponentially. Shortages are permitted to occur and supposed to be “partially backlogged.” Rate of backlogging is assumed to have inverse relation with the waiting time for the subsequent replenishment. In this chapter, shortage point and length of cycle are jointly optimized. Numerical analysis and s...

Research paper thumbnail of COVID-19: A Bibliometric Analysis and Insights

International Journal of Mathematical, Engineering and Management Sciences

The current outbreak of the coronavirus disease has left the whole world traumatised. The illness... more The current outbreak of the coronavirus disease has left the whole world traumatised. The illness triggered by the novel coronavirus is named as COVID-19. It is pre-fixed with the word “novel” because it comes under the new strain of the virus that has not been reported before. This virus outbreak has disrupted human life in the most petrifying way worldwide. The present study aims to analyse the work done in this field through a state-of-the-art review of articles based on COVID-19 and discuss the current trends in the epidemiology of this disease entity with special reference to India and the effects of this pandemic on the environment. The time frame selected for review is the beginning of this pandemic to April 10th, 2020. Scopus® database is used to carry out the analysis. Moreover, the most contributed authors, institutions, countries, etc. are showed through the analysis. The purpose of this review is to get an idea about the direction of the flow of current research, the ass...

Research paper thumbnail of An integrated green supply chain model with product recovery management towards a cleaner system

Journal of Cleaner Production

Research paper thumbnail of Role of Big Data Analytics in supply chain management: current trends and future perspectives

International Journal of Production Research

Research paper thumbnail of An integrated inventory model for imperfect production system incorporating marketing decisions with an investment in preservation technology

International Journal of Services Operations and Informatics

Research paper thumbnail of Inventory Decisions for Imperfect Quality Deteriorating Items with Exponential Declining Demand Under Trade Credit and Partially Backlogged Shortages

Quality, IT and Business Operations

Research paper thumbnail of Inventory and pricing decisions for an imperfect production system with quality inspection, rework, and carbon-emissions

Yugoslav Journal of Operations Research

The present paper considers the effect of imperfect quality items on a production system which fu... more The present paper considers the effect of imperfect quality items on a production system which further undergoes inspection and rework. The demand of the product is price reliant. Two situations to handle the imperfect items are analyzed: selling them at a reduced price and reworking them. The demand is assumed to meet with perfect products in either case. Further, the study incorporates the carbon-emissions borne during production of goods and their holding in the inventory system. The model aims at maximizing the profit function by jointly optimizing mark-up price and production quantity. To demonstrate model characteristics, numerical and sensitivity analysis are also presented.

Research paper thumbnail of Preservation technology investment for an inventory system with variable deterioration rate under expiration dates and price sensitive demand

Yugoslav Journal of Operations Research

The proposed study addresses a supplier-retailer inventory problem by considering the detrimental... more The proposed study addresses a supplier-retailer inventory problem by considering the detrimental impacts of deterioration. The inventory produced by the supplier undergo a machine-shift and hence, produces non-conforming items. The retailer uses the preservation technology to deal with deteriorating items ingeniously where the demand is price-sensitive at the buyers end. Two models are developed through different means viz. Integrated and Bi-level approach and compared so to impart some constructive organizational insights. Sensitivity analysis was done over a numerical example to validate strength of the developed models.

Research paper thumbnail of Sustainable production policies under the effect of volume agility, preservation technology, and price-reliant demand

Yugoslav Journal of Operations Research

Any supply chain supposes production and pricing decisions. The most influential factor that affe... more Any supply chain supposes production and pricing decisions. The most influential factor that affects a sales decision is the price of a product, which in turn, affects the configuration of the demand. Further, holding the produced goods means also the occurrence of deterioration as a common phenomenon, which may lead to excessive loss if left untreated. Thus, an investment in preservation process helps in controlling deterioration efficiently. Moreover, incorporation of the environmental factor presents the need of the hour in the current situation of environmental imbalance. To address the above issues, we consider volume agility to avoid any excessive storage and backlogging costs, carbon-emissions and energy-usage to address the performance of our model regarding the environment, and investment in preservation process to control the loss due to deterioration. Also, the demand of the product is taken as price-reliant. The investment in preservation, production rate, and price of t...

Research paper thumbnail of Sustainable inventory policy for an imperfect production system with energy usage and volume agility

International Journal of System Assurance Engineering and Management

A sustainable production inventory model that addresses some of the pragmatic scenarios of the pr... more A sustainable production inventory model that addresses some of the pragmatic scenarios of the production process is developed. The production process is considered imperfect which results in the production of some imperfect quality items with known distribution. The imperfect products are managed through an efficient rework process that makes the items suitable to be vended at their original markup price only. The agile nature of the manufacturing process is considered. And, the energy usage and carbon emission in the production process is also considered. Undoubtedly, the fundamental nature of demand is sensitive to price. Thus, the model incorporates the demand to be price-contingent. The objective is to maximize the overall inventory turnover by conjointly optimizing the selling price, production rate, and production time. A numerical example is included to validate the model. Further, the sensitivity analysis unfolds valuable managerial insights for decision-makers. Findings suggest that the model with the insertion of volume agility effect performs better when compared with the one without the volume agility.