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3846 items in total found

Journal Articles | 2019

Attitudinal choice models with applications in human decision making

Manish Aggarwal

International Journal of Intelligent Systems

A new family of attitudinal discrete choice models is proposed by considering the attitudinal character and the weight vector, both of which are specific to a decision maker (DM). Given the attribute values of different alternatives, the proposed models give varying choice probabilities, as per the DM's-specific attitudinal character and the weight vector. It is also shown that the conventional discrete choice models are the special cases of the proposed attitudinal models. The proposed choice models are also generalized through an additional parameter to add to their capabilities. An application on real data is included to demonstrate their usefulness in the real world.

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Journal Articles | 2019

The leadership of the school principal: Impact on teachers' job crafting, alienation and commitment

Sanket Dash and Neharika Vohra

Management Research Review

Purpose

The mechanisms through which superiors’ leadership styles and subordinates’ internal cognitions affect subordinates’ actual behaviour and attitudes are relatively unexplored in most contexts. This paper aims to bridge the gap by exploring the mediating effect of teachers’ cognitions (psychological empowerment) in the relationship between principals’ leadership style (empowering leadership) and teachers’ behaviour (job crafting) and attitudes (work alienation and organizational commitment).

Design/methodology/approach

Partial least squares structural equation modelling (PLS-SEM) was used on data obtained from 624 teachers of primary classes in Indian private schools.

Findings

Psychological empowerment partially mediates the relationship between empowering leadership and job crafting and job crafting partially mediates the relationship between empowering leadership and work alienation and affective commitment. Work alienation partially mediates the relationship between job crafting and affective commitment. Empowering leadership has a direct effect on job crafting.

Research limitations/implications

Due to the lack of longitudinal data, causality cannot be established. Also, there are concerns about the factor structure of scales.

Practical implications

Principals demonstrating empowering leadership can help teachers become more proactive and feel more empowered, less alienated and more committed. More proactive teachers and less alienated teachers are more likely to engage in self-initiated professional development and collaboration, thereby improving the teaching-learning process. Though this study was done in the school context, it is believed that the findings can plausibly apply to managers/leaders who work with complex, ambiguous work and knowledge workers.

Originality/value

First, the study extends the research on job crafting by studying the relationship between leadership style (empowering leadership) and job crafting. Second, the identification of the mechanisms through which leaders (principals) can help subordinates (teachers) find meaning in work (reduction in alienation) and develop commitment is an original contribution.

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Journal Articles | 2019

Extended hesitant fuzzy linguistic term set with fuzzy confidence for solving group decision-making problems

R Krishankumar, K S Ravichandran, Manish Aggarwal, and Sanjay K Tyagi

Neural Computing and Applications

This paper presents a new extension of the hesitant fuzzy linguistic term set (HFLTS) called intuitionistic fuzzy confidence-based HFLTS that associates an intuitionistic fuzzy value (IFV) with each linguistic term. The resulting term set is termed as intuitionistic fuzzy confidence hesitant fuzzy linguistic term set (IFCHFLTS). The previous studies on the linguistic decision making have emphasized little upon the preference and non-preference for each of the linguistic terms. This information, however, is crucial in multi-criteria decision making under uncertainty. In this regard, we find IFV particularly useful for qualifying each of the linguistic terms with the agent’s degree of preference, non-preference, and hesitation values. Besides, a new aggregation operator named intuitionistic fuzzy confidence linguistic simple weighted geometry (IFCLSWG) is also proposed to fuse decision makers’ linguistic preferences. Further, the criteria weights are estimated using a new method called intuitionistic fuzzy confidence linguistic standard variance. An approach is also suggested for ranking the given alternatives by adapting VIKOR under the proposed IFCHFLTS context. Finally, the practicality and usefulness of the proposal are demonstrated through two real-world problems in green supplier selection for manufacturing industry, and medical diagnosis. The strengths and weaknesses of the proposal are also highlighted by drawing upon a comparison with similar methods.

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Journal Articles | 2019

Logit Choice Models for Interactive Attributes

Manish Aggarwal

Information Sciences

Journal Articles | 2019

Modeling a decision-maker's choice behavior through perceived values

Manish Aggarwal

IEEE Transactions on Systems, Man, and Cybernetics: Systems

In the real world, an attribute value is perceived differently by different individuals. Emphasizing on this aspect, we extend the discrete choice models with perceived values that are subjective and specific to a decision-maker (DM). The proposed choice models are augmented with the parameters of an entropy function, besides the utility coefficients, to model a DM's complex choice behavior. A variety of higher order choice models are also proposed. The proposed models are further extended with a DM's reference-value for each attribute. A real and illustrative application is included.

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Journal Articles | 2019

Modelling human decision behaviour with preference learning

Manish Aggarwal and Ali Fallah Tehrani

INFORMS Journal on Computing

In the real world, an attribute value is perceived differently by different individuals. Emphasizing on this aspect, we extend the discrete choice models with perceived values that are subjective and specific to a decision-maker (DM). The proposed choice models are augmented with the parameters of an entropy function, besides the utility coefficients, to model a DM's complex choice behavior. A variety of higher order choice models are also proposed. The proposed models are further extended with a DM's reference-value for each attribute. A real and illustrative application is included.

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Journal Articles | 2019

A new family of fuzzy discrete choice models

Manish Aggarwal

IEEE Transactions on Fuzzy Systems

Often in real-world decision making, it is difficult to crisply evaluate the utility values as required in the case of conventional choice models. Besides, a decision maker (DM) has his/her own relative importance for each of the attributes. The attributes may also be interacting positively (synergy) or negatively, the degree of which is specific to the DM. A new family of discrete choice models is introduced with a motivation that takes into account the human factors in real-world multiattribute decision making. More specifically, the proposed choice models are based on fuzzy subjective utilities that are easier to elicit. The proposed models are further extended to take into account the unique attitudinal character of the DM, the relative weight vector, and the degree of interaction among the different attributes. A real case study illustrates the usefulness of the study.

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Journal Articles | 2019

Confidence soft sets and applications in supplier selection

Manish Aggarwal

Computers & Industrial Engineering

The evaluation of the alternatives against multiple criteria is of the utmost importance in a multi-criteria decision making (MCDM) problem. It is often the case that the experts have a varying degree of confidence in their evaluations. That is, an evaluation has an associated degree of credibility. To take into account this crucial piece of information in determining the best choice, we present a new data structure. More specifically, we present a confidence-based soft set. We also extend the same to the fuzzy and intuitionistic fuzzy domains. The proposed concepts are elucidated through a number of illustrative examples. We establish their usefulness in a real case-study.

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Journal Articles | 2019

Antecedents to innovation in emerging markets: Evidence from India

Mohammad Fuad and Arun Kumar Jain

International Journal of Innovation Management

Firms utilise both internal and external knowledge reservoirs in order to innovate. This study explores the drivers of innovation specifically, role of business groups, alliances, degree of internationalisation and financial slack on innovation. Hypotheses are tested using patent data on a sample of Indian firms. Group affiliation, financial slack and degree of internationalisation are found to positively impact innovation output. This study contributes towards the nascent literature on innovation in the Indian context.

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Journal Articles | 2019

Contestations around water allocation during a climate crisis in India: The case of 'IPL vs. drought'

Arpit Shah and Navdeep Mathur

Global Environmental Change

In this paper, we analyze a major controversy regarding the allocation of water for Indian Premier League (IPL) cricket matches during a period of extreme drought in the state of Maharashtra in India. We use a discursive approach to public policy to understand water policy production and to analyze the competing narratives on water advanced by opposing discourse coalitions during the ‘IPL vs. drought’ controversy. We find that the neoliberal view of ‘water as an economic good’ is dominant and institutionalized in the water allocation priorities determined by the Maharashtra State government. This is resisted by civil society actors like Loksatta and by the Indian judiciary, who view ‘water as a Human Right.’ Our reading of the ‘IPL vs. drought’ public interest litigation (PIL) shows that Loksatta’s decision to target water allocation for the IPL through the Courts leverages the popularity of the IPL in the Indian media, as well as the uneven unfolding of neoliberalism across institutions of the state in India. At the same time, Loksatta’s PIL focuses solely on the IPL and does not pay attention to the water allocation to larger users like industry and sugarcane cultivation that best represent the institutionalization of the neoliberal view of water in Maharashtra. We argue that the focus on the IPL makes it the site of contesting water policy on ideological grounds. We conclude by examining the challenge provided by Loksatta’s PIL to the dominant neoliberal view of water in Maharashtra.

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