Leveraging the social welfare chain to provide resilience during disaster

Due to the rampant increase in disasters globally, resilience in supply chain and logistics is receiving greater research attention in various parts of the world. This paper considers the role and contribution of social welfare supply chains in providing resilience. This is a causal phenomenon which has been studied through an exploratory research by building a framework from extant literature, a case study on an Indian non-governmental organization and tested through a social network analysis. We show how in the wake of a disaster, these social welfare supply chains become enablers. The paper provides an inkling into how to improve community resilience in times of disaster. Further, we show how these supply chains use social cohesion embedded in the structure to provide efficiency, diversity and adaptability, thereby bringing resilience into the supply system. Another contribution of this study is the use of visualisation and analysis of social media representation tools for social network analysis in operations.     

Shall One Sit “Longer” for a Free Lunch? Impact of Trading Durations on the Realized Variances and Volatility Spillovers

This study examines the effect of trading durations on the realized variance of rupee futures traded in national stock exchange (NSE), India and Dubai Gold & Commodities Exchange (DGCX), Dubai as there exists a difference in the trading durations at these exchanges, where DGCX has longer trading duration. The empirical results suggest that longer trading duration has significantly higher realized variance, and also non-trading durations at NSE account for higher overall realized variance of Rupee Futures. We model the impact of trading durations on intraday and overnight realized variance for rupee futures and estimate a reduced realized volatility of 40–70 bps due to shorter trading duration. We find that non-trading durations at National Stock Exchange account for 60–70% of the overall realized variance of rupee futures. Using MGARCH model with BEKK parameterization, we find evidence of bidirectional volatility spillover from Offshore to Onshore Rupee markets.

     

Detection of Management Fraud: A Neural Network Approach

The detection of management fraud is an important issue facing the auditing profession. A major contributor to this issue is the Loebbecke and Willingham (1988) conceptual model for the detection of management fraud. A cascaded Logit approach using the Loebbecke and Willingham model was developed in Bell et al. (1993). The present study offers an alternative approach using Artificial Neural Networks (ANNs). This paper develops a successful discriminator of management fraud using both the generalized adaptive neural network architectures (GANNA) and the Adaptive Logic Network (ALN) approaches to designing neural networks. The discriminant functions can distinguish between fraudulent and non-fraudulent companies with superior accuracy to the cascaded Logit results of Bell et al. (1993). Finally, the discriminant function provides a parsimonious set of questions useful for detecting management fraud.     

EX-ANTE EXPECTATIONS AND PORTFOLIO SELECTION

This paper examines differences among investors who are relatively optimistic/pessimistic regarding the performance of the stock market in terms of portfolio composition and trading activity. Findings indicate that investors more pessimistic regarding the stock market are likely to: (1) channel their funds into leveraged and tax advantageous investments, and (2) trade less frequently on the stock market.     

Consumer Protection Act, 1986: Law and policy in India

India passed its new Consumer Protection Act in 1986. The author points out that the Act is a landmark in the history of the consumer protection movement in India. It concerns mainly the regulation of consumer disputes and creates specific redress agencies at district, state, and Union level. It also contains general provisions for consumer rights and for the organization of the consumer interest.

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Verbraucherschutzgesetz 1986: Recht und Politik in Indien

Zusammenfassung Nach Meinung des Autors handelt es sich bei dem neuen indischen Verbraucherschutzgesetz um einen Meilenstein in der Verbraucherschutzbewegung dieses Landes. Das Gesetz betrifft vor allem die Regelung von Konsumentenstreitigkeiten, für die es eigene Einrichtungen und verfahren auf Distrikt-, Provinz- und Unionsebene schafft. Das Gesetz enthält auch allgemeine Verbraucherrechte und einen organisatorischen Rahmen zur Verbrauchervertretung.

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Rajendra Kumar Nayak is an Associate Research Professor at the Indian Law Institute, Bhagwan Dass Road, New Delhi-110001, India, and Member, Central Consumer Protection Council, Government of India.     

On Lindley-like mean correction in the improved estimation of linear regression models

The risks of estimators incorporating the correction to the sample mean in the spirit of Stein and Lindley are approximated in the case of small disturbances.     

Think exogenous to excel: alternative supply chain data to improve transparency and decisions

Efficient decisions along the supply chain have traditionally demanded sophisticated information sharing processes. Even with decades of research on theoretical and practical developments on integrating systems and stakeholders, in practice, we still seem to struggle to achieve full transparency and mitigate inefficiency challenges. We explore the emerging sentiment analysis technique to augment sales and operations planning with currently unavailable exogenous information. Even though sentiment analysis has gained traction, a comprehensive application in supply chains has not yet been attempted. Relevant topics are reviewed to allow an examination of the key relationships in a process framework, grounded in dual-process and bullwhip effect theory. Our proposed conceptual framework extends our conception of sentiment analysis integration to improve supply chain decisions and performance. The framework addresses managers interested in developing additional analytical capabilities and researchers to initiate further empirical research on the potential held by sentiment analysis in supply chain research.     

Timely loss recognition and termination of unprofitable projects

Ideally,firms should discontinue projects that become unprofitable.Managers,however,continue to operate such projects because of their limited employment horizo...