Mohit Ray, Avinash Kumar and Samir K. Srivastava
Despite various consequences for different stakeholders in the mustard ecosystem, India prohibited blending in mustard oil to achieve self-reliance in edible oils and promote…
Abstract
Purpose
Despite various consequences for different stakeholders in the mustard ecosystem, India prohibited blending in mustard oil to achieve self-reliance in edible oils and promote consumer health. This paper uncovers the implications of this policy on mustard production, consumption and prices.
Design/methodology/approach
This paper deploys system dynamics (SD) to model the mustard ecosystem. SD uses simulation modeling to comprehend the nonlinear behavior of complex systems over time utilizing causal-loop and stock-flow diagrams.
Findings
While the mustard price does not vary in the short run, it diverges toward a higher side in the long run due to the changed policy mandate. Surprisingly, due to the predominance of market prices, the policy administered minimum support price (MSP) was found to have a limited influence on mustard prices. Hence, the focus should be on supply augmentation through non-price-based measures like disseminating information to enhance the yield rate of seed production and promoting the adoption of efficient technologies with higher oil conversion efficiency.
Research limitations/implications
The paper allows policymakers to quantitatively evaluate the effectiveness of policy interventions to mitigate the adverse impacts of policy mandate. It presents a reliable roadmap for policymakers to roll out effective policies.
Originality/value
The paper uncovers the system-level impact of policy on stakeholders and examines the effectiveness of MSP.
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Yogesh Patil, Milind Akarte, K. P. Karunakaran, Ashik Kumar Patel, Yash G. Mittal, Gopal Dnyanba Gote, Avinash Kumar Mehta, Ronald Ely and Jitendra Shinde
Integrating additive manufacturing (AM) tools in traditional mold-making provides complex yet affordable sand molds and cores. AM processes such as selective laser sintering (SLS…
Abstract
Purpose
Integrating additive manufacturing (AM) tools in traditional mold-making provides complex yet affordable sand molds and cores. AM processes such as selective laser sintering (SLS) and Binder jetting three-dimensional printing (BJ3DP) are widely used for patternless sand mold and core production. This study aims to perform an in-depth literature review to understand the current status, determine research gaps and propose future research directions. In addition, obtain valuable insights into authors, organizations, countries, keywords, documents, sources and cited references, sources and authors.
Design/methodology/approach
This study followed the systematic literature review (SLR) to gather relevant rapid sand casting (RSC) documents via Scopus, Web of Science and EBSCO databases. Furthermore, bibliometrics was performed via the Visualization of Similarities (VOSviewer) software.
Findings
An evaluation of 116 documents focused primarily on commercial AM setups and process optimization of the SLS. Process optimization studies the effects of AM processes, their input parameters, scanning approaches, sand types and the integration of computer-aided design in AM on the properties of sample. The authors performed detailed bibliometrics of 80 out of 120 documents via VOSviewer software.
Research limitations/implications
This review focuses primarily on the SLS AM process.
Originality/value
A SLR and bibliometrics using VOSviewer software for patternless sand mold and core production via the AM process.
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Mobin Fatma, Imran Khan, Vikas Kumar and Avinash Kumar Shrivastava
This study aims to analyse a proposed model depicting the direct and indirect relationship between consumer perceptions of corporate social responsibility (CSR) and customer…
Abstract
Purpose
This study aims to analyse a proposed model depicting the direct and indirect relationship between consumer perceptions of corporate social responsibility (CSR) and customer citizenship behaviour (CCB) in the banking industry.
Design/methodology/approach
In this study, data was collected from banking consumers in India. The final sample included 505 responses. The hypotheses were tested using structural equation modelling.
Findings
The findings suggest that consumer perceptions of CSR are positively related to consumer identification with the company and CCB. Also, the relationship between consumer perception of CSR and CCB is mediated through consumer–company identification. This suggests that CSR activities are positively related with the consumer identification with their company, which encourages CCB.
Originality/value
This study contributes empirically and theoretically to expand the limited knowledge about the cognitive link between CSR and consumer behaviour. This study provides new insights about the proposed relationships related to the effects of consumer perception of CSR on CCB.
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Raunaq Chawla, Eric Soreng and Avinash Kumar
A prime objective of the Swachh Bharat Abhiyan (SBA; Clean India Mission) is to motivate people to segregate their household waste. The purpose of this study is to assess the…
Abstract
Purpose
A prime objective of the Swachh Bharat Abhiyan (SBA; Clean India Mission) is to motivate people to segregate their household waste. The purpose of this study is to assess the ground reality of waste management behaviour of Delhi residents with the help of a modified Value–Belief–Norm (VBN) model. Past researches point the need to include cost as a variable in the VBN model. This study fulfils this need and tests cost as one of the variables on the gathered data.
Design/methodology/approach
The research data were gathered by interacting with the people and the civic staff in the jurisdiction of the three Delhi municipalities through a stratified sampling technique (N = 250). The structural equation modelling was used to analyse the collected data.
Findings
The modified VBN model explains the waste management behaviour, but the variables do not follow the exact causal chain. Values, awareness of consequences, ascription of responsibility and personal norms all explain the resident's waste management behaviour. However, cost limits the resident's waste management behaviour.
Research limitations/implications
The study could only achieve a moderate model fit; its sample size was small; and data were collected through self-reported questionnaire.
Practical implications
Three main practical implications of the study are: (1) While designing waste management solutions, due importance must be given to the cost to be borne by people for adopting these solutions. (2) Design such interventions that target residents' values to convince them to make the desired behavioural change. (3) People need be educated about the ways to sort waste and made aware of the importance of waste segregation in eradicating the urban waste mess.
Originality/value
The paper is an original contribution to testing a modified VBN model in predicting waste management behaviour. The modified model includes cost as a variable missing in the previous research. This research is useful in the backdrop of the SBA and provides suggestions for policymakers and pro-environment researchers.
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Yogesh Patil, Ashik Kumar Patel, Gopal Dnyanba Gote, Yash G. Mittal, Avinash Kumar Mehta, Sahil Devendra Singh, K.P. Karunakaran and Milind Akarte
This study aims to improve the acceleration in the additive manufacturing (AM) process. AM tools, such as extrusion heads, jets, electric arcs, lasers and electron beams (EB)…
Abstract
Purpose
This study aims to improve the acceleration in the additive manufacturing (AM) process. AM tools, such as extrusion heads, jets, electric arcs, lasers and electron beams (EB), experience negligible forces. However, their speeds are limited by the positioning systems. In addition, a thin tool must travel several kilometers in tiny motions with several turns while realizing the AM part. Hence, acceleration is a more significant limiting factor than the velocity or precision for all except EB.
Design/methodology/approach
The sawtooth (ST) scanning strategy presented in this paper minimizes the time by combining three motion features: zigzag scan, 45º or 135º rotation for successive layers in G00 to avoid the CNC interpolation, and modifying these movements along 45º or 135º into sawtooth to halve the turns.
Findings
Sawtooth effectiveness is tested using an in-house developed Sand AM (SaAM) apparatus based on the laser–powder bed fusion AM technique. For a simple rectangle layer, the sawtooth achieved a path length reduction of 0.19%–1.49% and reduced the overall time by 3.508–4.889 times, proving that sawtooth uses increased acceleration more effectively than the other three scans. The complex layer study reduced calculated time by 69.80%–139.96% and manufacturing time by 47.35%–86.85%. Sawtooth samples also exhibited less dimensional variation (0.88%) than zigzag 45° (12.94%) along the build direction.
Research limitations/implications
Sawtooth is limited to flying optics AM process.
Originality/value
Development of scanning strategy for flying optics AM process to reduce the warpage by improving the acceleration.
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Avinash Kumar Shrivastava and Nitin Sachdeva
Almost everything around us is the output of software-driven machines or working with software. Software firms are working hard to meet the user’s requirements. But developing a…
Abstract
Purpose
Almost everything around us is the output of software-driven machines or working with software. Software firms are working hard to meet the user’s requirements. But developing a fault-free software is not possible. Also due to market competition, firms do not want to delay their software release. But early release software comes with the problem of user reporting more failures during operations due to more number of faults lying in it. To overcome the above situation, software firms these days are releasing software with an adequate amount of testing instead of delaying the release to develop reliable software and releasing software patches post release to make the software more reliable. The paper aims to discuss these issues.
Design/methodology/approach
The authors have developed a generalized framework by assuming that testing continues beyond software release to determine the time to release and stop testing of software. As the testing team is always not skilled, hence, the rate of detection correction of faults during testing may change over time. Also, they may commit an error during software development, hence increasing the number of faults. Therefore, the authors have to consider these two factors as well in our proposed model. Further, the authors have done sensitivity analysis based on the cost-modeling parameters to check and analyze their impact on the software testing and release policy.
Findings
From the proposed model, the authors found that it is better to release early and continue testing in the post-release phase. By using this model, firms can get the benefits of early release, and at the same time, users get the benefit of post-release software reliability assurance.
Originality/value
The authors are proposing a generalized model for software scheduling.
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Avinash Kumar Shrivastava and Ruchi Sharma
The purpose of this paper is to develop a new software reliability growth model considering different fault distribution function before and after the change point.
Abstract
Purpose
The purpose of this paper is to develop a new software reliability growth model considering different fault distribution function before and after the change point.
Design/methodology/approach
In this paper, the authors have developed a framework to incorporate change-point in developing a hybrid software reliability growth model by considering different distribution functions before and after the change point.
Findings
Numerical illustration suggests that the proposed model gives better results in comparison to the existing models.
Originality/value
The existing literature on change point-based software reliability growth model assumes that the fault correction trend before and after the change is governed by the same distribution. This seems impractical as after the change in the testing environment, the trend of fault detection or correction may not follow the same trend; hence, the assumption of same distribution function may fail to predict the potential number of faults. The modelling framework assumes different distributions before and after change point in developing a software reliability growth model.
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Yash G. Mittal, Yogesh Patil, Pushkar Prakash Kamble, Gopal Dnyanba Gote, Avinash Kumar Mehta and K.P. Karunakaran
Additive manufacturing (AM) is a layer-by-layer technique that helps to create physical objects from a three-dimensional data set. Fused deposition modeling is a widely used…
Abstract
Purpose
Additive manufacturing (AM) is a layer-by-layer technique that helps to create physical objects from a three-dimensional data set. Fused deposition modeling is a widely used material extrusion (MEX)-based AM technique that melts thermoplastic filaments and selectively deposits them over a build platform. Despite its simplicity and affordability, it suffers from various printing defects, with partial warping being a prevalent issue. Warpage is a physical deformation caused by thermal strain incompatibility that results in the bending of the printed part away from the build platform. This study aims to investigate the warpage characteristics of printed parts based on geometrical parameters and build orientations to reduce the warpage extent.
Design/methodology/approach
Cuboidal samples of thermoplastic acrylonitrile butadiene styrene ranging from 5 to 80 mm were printed using a commercial MEX system. A Taguchi method-based design of experiment trial was performed to optimize the placement and orientation of the part for minimal warpage.
Findings
It was found that a lower value of the “in-plane” aspect ratio and a more prominent part thickness are favorable for minimal warpage. The part should always be placed near the region with the highest temperature (least thermal gradient) to minimize the warpage.
Originality/value
A novel dimensionless parameter (Y) is proposed that should be set to a minimum value to achieve minimal warpage. The results of this study can help improve the design and part placement for the MEX technique, thus elevating the print quality.
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Avinash Kumar and Rajeev Kumra
The purpose of this paper is to empirically examine the effect of television viewing duration of a household on its annual category-level conspicuous consumption and also the…
Abstract
Purpose
The purpose of this paper is to empirically examine the effect of television viewing duration of a household on its annual category-level conspicuous consumption and also the enhanced level of this relationship for the bottom of the pyramid (BoP) households.
Design/methodology/approach
Hypotheses formulation was guided by cultivation theory and the concept of compensatory consumption. The hypotheses were later examined by using ordinary least square (OLS) regression on the data from the large nationally representative India Human Development Survey, 2011 (IHDS-II) database.
Findings
Television viewing duration of the household exerts a positive effect on its annual category-level conspicuous consumption expenditure. The nature of this relationship is enhanced for the BoP households. The annual category-level conspicuous consumption for the BoP households increases by close to four percent for every hour increase in their television viewing duration while such increase for other households is close to one and a half percent only.
Research limitations/implications
Findings can be further strengthened by using time-lagged dependent variable taken at monthly intervals, as well as survey data linking household television viewing duration with desirability of conspicuous goods.
Practical implications
Managers can rely on television for reaching BoP consumers while being cognizant of the negative effects of promoting conspicuous consumption among them. They need to adopt a responsible marketing approach. Besides regulating television, policymakers need to work toward increased provisioning of educational and financial services for BoP households. They can leverage television for promoting beneficial behavior in BoP households.
Originality/value
The study empirically establishes the external validity of cultivation theory at the household level in an emerging economy by using a large nationally representative database. It also establishes the higher vulnerability of BoP households to increase category-level conspicuous consumption in response to television viewing. To the best of the authors’ knowledge, this is the first study to empirically examine the effect of television viewing duration of household on its annual category level conspicuous consumption.
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The objective of this paper is to study the impact of ISO 9000 implementation on organisational culture, organisational climate, role stress and coping strategy.
Abstract
Purpose
The objective of this paper is to study the impact of ISO 9000 implementation on organisational culture, organisational climate, role stress and coping strategy.
Design/methodology/approach
ISO 9000 was implemented in different production units of an Indian public sector manufacturing industry by harnessing organisational knowledge through the creative involvement of organisational members. Comprehensive work redesign for enhanced organisational effectiveness was realised while attaining ISO 9000 certification. Pre‐ and post‐ISO 9000 measurements were made for organisational culture in the first unit, organisational climate in the second unit, role stress in the third unit and coping strategy in the fourth unit. Statistical analysis of pre‐ and post‐measurements was carried out to identify significant changes attributable to ISO 9000 implementation.
Findings
ISO 9000 implementation enhances the culture of collaboration; transforms the climate from dysfunctional to functional (by strengthening achievement and extension, and weakening control); levels the role stress, reducing it when it is high, increasing it when it is low; strengthens confrontation and problem solving through teamwork; and weakens problem‐avoidance.
Originality/value
The paper demonstrates that ISO 9000 implementation complements organisational development by enhancing the functionality of culture, climate, and coping strategy; and promoting human wellbeing in the organisation.