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639 items in total found

Journal Articles | 2023

Peer influence and IT career choice

Nishtha Langer, Tarun Jain

The productivity of the information technology (IT) industry depends on the supply of high-quality human capital, especially of managers who contribute to operational, finance, sales and marketing, and leadership roles. This study examines the influence of peers on the choice a management student makes to pursue a career in the IT industry. Such a choice may be informed and driven not only by the student’s own motivation and ability but also by information gained through peers. Specifically, we analyze data on student networks at a leading business school in India, where students are exogenously assigned to peer groups, and link these to students’ choices regarding postprogram careers in the IT industry. We find that being part of a group that includes peers who have worked in IT reduces the likelihood of receiving and accepting an offer in the IT industry. If a student has had no IT experience, however, having IT peers ameliorates this effect to a certain degree. We also find differential peer effects for male and female students. Our findings are consistent with the notion that IT peers provide (largely discouraging) information about the IT industry to non-IT peers.

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Journal Articles | 2023

Performance evaluation of Indian electricity distribution companies: An integrated DEA-IRP-TOPSIS approach

Vishal Singh Patyal, Ravi Kumar, Kuldeep Lamba, Sunil Maheshwari

Energy is a fundamental building block of human growth and plays a significant role in developing emerging economies such as India. The Indian electricity sector has a strong generation and transmission system but a weak distribution system. This is considered the weakest link in the electricity sector's value chain, and regulators are primarily concerned with the performance of electricity distribution companies (DISCOMs). Despite numerous reforms introduced to attain financial sustainability, most DISCOMs consistently incur losses and are financially unsustainable. Therefore, evaluating the performance of DISCOMs is essential by measuring their efficiency to ensure competition among them and to make reforms successful. This study aimed to identify and compare the performance efficiencies of 48 electricity DISCOMs from 24 states across India between 2015/16 and 2018/19. This study used the integrated DEA-IRP-TOPSIS technique to segment efficient and inefficient DISCOMs. The study recommends that states provide operational and financial autonomy to power Discoms. The study will be helpful for DISCOMs professionals to understand their performance and design suitable strategies based on efficiency assessments and their position concerning their peers. By comparing Indian DISCOMs with their contemporaries, this study contributes new evidence at the policy level and to the literature on the efficiency analysis of Indian DISCOMs.

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Journal Articles | 2023

An abstract model for branch and cut

Aleksandr M. Kazachkov, Pierre Le Bodic, Sriram Sankaranarayanan

Branch and cut is the dominant paradigm for solving a wide range of mathematical programming problems—linear or nonlinear—combining efficient search (via branch and bound) and relaxation-tightening procedures (via cutting planes, or cuts). While there is a wealth of computational experience behind existing cutting strategies, there is simultaneously a relative lack of theoretical explanations for these choices, and for the tradeoffs involved therein. Recent papers have explored abstract models for branching and for comparing cuts with branch and bound. However, to model practice, it is crucial to understand the impact of jointly considering branching and cutting decisions. In this paper, we provide a framework for analyzing how cuts affect the size of branch-and-cut trees, as well as their impact on solution time. Our abstract model captures some of the key characteristics of real-world phenomena in branch-and-cut experiments, regarding whether to generate cuts only at the root or throughout the tree, how many rounds of cuts to add before starting to branch, and why cuts seem to exhibit nonmonotonic effects on the solution process.

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Journal Articles | 2023

Going the Extra Mile: What Taxi Rides Tell Us About the Long-Hour Culture in Finance

Deniz Okat and Ellapulli V. Vasudevan

We analyze banks’ “protected-weekend” policies that restrict junior bankers from working during weekends. We use taxi rides from bank addresses in New York City to infer bankers’ working hours. We find the policies induced bankers to shift their work to late-night hours on weekdays. We then investigate whether such shifts in working hours affected the quality of work. After the policy, analysts of the policy-implementing banks make more errors in their earnings forecasts. They also herd more toward the consensus in their forecasts. We further provide evidence that junior bankers are the most adversely affected by the policy.

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Journal Articles | 2023

Cooperative Security Against Interdependent Risks

Sanjith Gopalakrishnan, Sriram Sankaranarayanan

Firms in interorganizational networks are exposed to interdependent risks that are transferable across partner firms, such as contamination in food supply chains or data breaches in technology networks. They can be decomposed into intrinsic risks a firm faces from its own operations and extrinsic risks transferred from its partners. Firms have access to two security strategies: either they can independently eliminate both intrinsic and extrinsic risks by securing their links with partners or, alternatively, firms can cooperate with partners to eliminate sources of intrinsic risk in the network. We develop a graph-theoretic model of interdependent security and demonstrate that the network-optimal security strategy can be computed in polynomial time. Then, we use cooperative game-theoretic tools to examine, under different informational assumptions, whether firms can sustain the network-optimal security strategy via suitable cost-sharing mechanisms. We design a novel cost-sharing mechanism: a restricted variant of the well-known Shapley value, the agreeable allocation, that is easy to compute, bilaterally implementable, ensures stability, and is fair. However, the agreeable allocation need not always exist. Interestingly, we find that in networks with homogeneous cost parameters, the presence of locally dense clusters of connected firms precludes the existence of the agreeable allocation, while the absence of sufficiently dense clusters (formally, k-cores) guarantees its existence. Finally, using the SDC Platinum database, we consider all interfirm alliances formed in the food manufacturing sector from 2006 to 2020. Then, with simulated cost parameters, we examine the practical feasibility of identifying bilaterally implementable security cost-sharing arrangements in these alliances.

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Journal Articles | 2023

Infrastructure and Finance: Evidence from India's GQ Highway Network

Abhiman Das, Ejaz Ghani, Arti Grover Goswami, William R. Kerr & Ramana Nanda

We use data from Reserve Bank of India to study the impact of India’s Golden Quadrilateral (GQ) highway project on finance-dependent activity. Loan volumes increase by 20%–30% in districts along GQ and are stronger in industries more dependent upon external finance. Loan growth begins with increases in average branch size and in places with more pre-GQ loan activity. New branch openings come later, consistent with short-run adjustment costs to expanding branch networks. These patterns are not evident in placebo tests using delayed investments in NS-EW highways. Results suggest the depth of initial financial infrastructure shapes how infrastructure investments impact localities.

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Journal Articles | 2023

An Overarching Conceptual Framework for ICT-enabled Responsive Governance

Amit Anand Tiwari, Samrat Gupta, Efpraxia D. Zamani, Neeraj Mittal and Renu Agarwal

Information Systems Frontiers

Over the recent years, responsiveness has gained importance as it is a critical element of public governance processes and acts as a driving factor for supporting the achievement of governance objectives, especially in the implementation phases. In this study, we identify the knowledge gaps in the realm of responsive governance based on a systematic literature review. Based on our analysis, we propose a conceptual framework of major building blocks (input, process and outcomes) for the development and implementation of responsive governance at the local, regional and national levels of administrative hierarchy.

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Journal Articles | 2023

Circular economy business models as pillars of sustainability: Where are we now, and where are we heading?

Maryam Hina, Chetna Chauhan, Rajat Sharma and Amandeep Dhir

Business Strategy and the Environment

The prior literature has discussed the benefits of the circular economy business model (CEBM) while working to streamline the environmental aspect, touching upon the social aspect and improving the economic aspect. These aspects have been widely recognised as pillars of sustainability. Thus, prior scholars have sought to identify the relationship between the CEBM and sustainability. However, the extant literature, which remains relatively nascent, has failed to clarify this linkage for each pillar of sustainability. To address this lacuna, we followed a systematic literature review (SLR) approach to determine the current state of research on the CEBM and sustainability. Our study identifies and presents the thematic foci in the prior literature, which highlight the linkages between the CEBM and the pillars of sustainability. These thematic foci include the CEBM and sustainability, the CEBM and the environmental dimension, the CEBM and the social dimension and the CEBM and the economic dimension. In addition, this SLR recognises various research gaps within each theme and offers actionable avenues for future research. We also propose a conceptual framework, rooted in social capital theory (SCT), that highlights the linkages between the CEBM and sustainability. Our findings reveal that research at the intersection of the CEBM and sustainability considers the CEBM an integral component of sustainability. We conclude by presenting our work's theoretical and practical implications, which can assist scholars and organisations to incorporate the pillars of sustainability within their CEBMs.

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Journal Articles | 2023

Belief Distortion near 52W high and low: evidence from Indian equity options Market

Sumit Saurav, Sobhesh Kumar Agarwalla and Jayanth R. Varma

Journal of futures markets

We examine investors' behavioral biases and preferences in the options marketnear 52‐week high and low (52W‐H/L) using Indian options market data. Wedocument that as the stock price approaches 52W high (low), the skewness ofrisk‐neutral  density  (RND),  and  out‐of‐the‐money  (OTM)  call  volumedecreases (increases), while OTM put volume increases (decreases). Aftercrossing the 52W high (low), the skewness of RND and OTM call volumeincreases (decreases), while OTM put volume decreases (increases). Theeffects are economically large and significant. Our findings provide evidenceconsistent with the anchoring theory of belief distortion near 52W‐H/L. Thereis no evidence of preference distortion, contrary to what prospect theorypredicts.

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Journal Articles | 2023

Does employee mobility network influence acquisition behavior? Evidence from the semiconductor industry

Mayank Varshney and Mohammad Fuad

Strategic Organization

This article examines the role of employee mobility network in influencing a firm’s merger and acquisition behavior. Specifically, we draw upon the social network perspective and theorize that a firm’s employee mobility network centrality positively influences the number of announced merger and acquisition deals in a hi-tech industry. However, the firm’s prior acquisition experience and absorptive capacity negatively moderate the relationship between the employee mobility network centrality and the number of announced merger and acquisition deals. Our findings based on a sample of US semiconductor firms in the period 1992–2010 provide robust support to our theorization.

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