Indian Institute of Management Calcutta

About: Indian Institute of Management Calcutta is a education organization based out in Kolkata, India. It is known for research contribution in the topics: Supply chain & Emerging markets. The organization has 415 authors who have published 1354 publications receiving 21725 citations. The organization is also known as: IIMC & IIM Calcutta.

Do group-affiliated firms time their equity offerings?

Abstract: Using IPO and SEO data from the Indian capital market, we examine whether group-affiliated firms are able to time their equity issuance relative to stand-alone firms. Group-affiliated firms have access to internal capital markets, which, we argue should allow these firms to raise external capital at an opportune time. Using both direct and indirect measures of market timing, the main finding of our paper is that there are significant difference in how group-affiliated and stand-alone firms raise capital through IPOs and SEOs. We find that stand-alone firms raise more capital and time their IPO offerings whereas group-affiliated firms raise more capital and time their SEO offerings. Consistent with the notion of market timing, we find that the long run underperformance is pronounced for stand-alone IPO and group-affiliated SEO offerings.

Live bio-sensor nodes for invisible pervasive computing

Abstract: The focal point of this paper pivots on a most plausible proposition to develop a model via which live biological entities can be visualized as components of a wireless sensor network. Inherent distributed communication methodologies present among such chosen organisms are exploited to provide the interaction mechanism between the nodes of the sensor network. The related functional specifications of the bio-sensors and their related rationale have been discussed. The sensor network thus developed is used as a tool for implementing Pervasive Computing. Salient benefits of using Bio-sensor nodes over electronic sensors have been discussed.

Auctions with Rational Adversary

Abstract: Security of various types of online auctions has received a considerable attention from researchers. However, very few works have analyzed the problem of security in online sealed-bid auctions from the point of view of rational participants. The paper deals with an online auction scenario where two types of participants co-exist: 1 a party corrupted by a rational adversary that have positive utilities from information gained and that has no valuation for the items on auction enabling them to bid arbitrarily and 2 rational parties that are privacy conscious, positively value information gain and have a valuation for items on auction. The secure auction protocol proposed here addresses 1 privacy concerns of the rational players from themselves as well as the rational adversary; 2 prevention of 'throwing away' of contracts by rational adversaries and 3 prevention of sellers from obtaining their copy of the contract while winners do not receive theirs.

Identifying Dominant Economic Sectors and Stock Markets: A Social Network Mining Approach

Abstract: We propose a method to identify dominant economic sectors and stock markets using a social network approach to mining stock market data. Closing price data from January 1998 through January 2011 of 2698 stocks selected from 17 major stock market indices have been used in the analysis. A Minimum Spanning Tree (MST) has been constructed using the cross-correlations between weekly returns of the stocks. The MST has been chosen to obtain a simplified but connected network having linkages among similarly behaving stocks and it constitutes a social network of stocks for our study. The macroscopic interdependence networks among economic sectors as well as among stock markets have been derived from the microscopic linkages among stocks in the MST. The analysis of these derived macroscopic networks demonstrates that the European and the North American stock markets and Financial, Industrials, Materials, and Consumer Discretionary economic sectors dominate in the global stock markets.

Effect of Transformational Leader Communication on Affective Commitment to Change

Abstract: Extant literature indicates the role played by transformational leadership in bringing about organizational change in general, and affective commitment to change in particular. However, it does not explain the process through which transformational leadership at the top management level influences individual attitudes across the levels of hierarchy. This paper identifies communication as a common and an integral component of charismatic leadership, inspirational motivation, intellectual stimulation and individualized consideration impacting employees. Drawing on the literature on transformational leadership and change, the paper proposes a theoretical understanding of how transformational leader communication facilitates employee affective commitment to change. Additionally, it explores the intervening role of organizational identification in the relationship. The paper contributes by demonstrating the salience of leadership communication in bringing about organizational change. Also, it elucidates the key characteristics of communication and organizational identification which are instrumental in promoting affective commitment towards change. Implications of theory and practice and future directions for research are discussed.