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Total No of Publication : 1247


A Bayesian two-stage regression approach of analysing longitudinal outcomes with endogeneity and incompleteness

  • Authors: Bhuyan P., Biswas J., Ghosh P., Das K.
    Year: 2019 | IIM Bangalore
    Source: Statistical Modelling
    DOI: 10.1177/1471082X17747806

Two-stage regression methods are typically used for handling endogeneity in the simultaneous equations models in economics and other social sciences. However, the problem is challenging in the presence of incomplete response and/or incomplete endogenous covariate(s). We propose a Bayesian approach f...(Read Full Abstract)


A Large-Scale Constrained Joint Modeling Approach for Predicting User Activity, Engagement, and Churn With Application to Freemium Mobile Games

  • Authors: Banerjee T., Mukherjee G., Dutta S., Ghosh P.
    Year: 2019 | IIM Bangalore
    Source: Journal of the American Statistical Association
    DOI: 10.1080/01621459.2019.1611584

We develop a constrained extremely zero inflated joint (CEZIJ) modeling framework for simultaneously analyzing player activity, engagement, and dropouts (churns) in app-based mobile freemium games. Our proposed framework addresses the complex interdependencies between a player’s decision to use a fr...(Read Full Abstract)


A new extended formulation of the Generalized Assignment Problem and some associated valid inequalities

  • Authors: Murthy I., Ransbotham S.
    Year: 2019 | IIM Bangalore
    Source: Discrete Applied Mathematics
    DOI: 10.1016/j.dam.2019.08.015

We present a new extended formulation of the Generalized Assignment Problem (GAP), that is a disaggregation of the traditional formulation. The disaggregated formulation consists of O( mn2) variables and constraints, where m denotes the number of agents and n the number of jobs. In contrast, the tra...(Read Full Abstract)


A new extended formulation with valid inequalities for the Capacitated Concentrator Location Problem

  • Authors: Di Francesco M., Gaudioso M., Gorgone E., Murthy I.
    Year: 2019 | IIM Bangalore
    Source: European Journal of Operational Research
    DOI: 10.1016/j.ejor.2019.07.008

We present a new disaggregated formulation of the Capacitated Concentrator Location Problem (CCLP) using the notion of cardinality of terminals assigned to a concentrator. This formulation consists of O(mnn) variables and constraints, where m denotes the number of concentrators and n the number of t...(Read Full Abstract)


Advanced Regression Analysis

  • Authors: Nagadevara V.
    Year: 2019 | IIM Bangalore
    Source: International Series in Operations Research and Management Science
    DOI: 10.1007/978-3-319-68837-4_8

Three topics are covered in this chapter. In the main body of the chapter, the tools for estimating the parameters of regression models when the response variable is binary or categorical are presented. The appendices cover two other important techniques, namely, maximum likelihood estimate (MLE) an...(Read Full Abstract)


An aerospace business case on additive layer manufacturing technologies in aerospace and defense supply chain

  • Authors: Kemsaram N., Maley K.K.
    Year: 2019 | IIM Bangalore
    Source: International Journal of Supply Chain Management

This paper provides an overview of activity-based costing for the end-to-end additive layer manufacturing or 3D printing process. It explains to understand the cost drivers associated with additive layer manufacturing process. Using activity-based costing, we can breakdown the cost drivers and under...(Read Full Abstract)


An analysis of NPAs of Indian banks: Using a comprehensive framework of 31 financial ratios

  • Authors: Bawa J.K., Goyal V., Mitra S.K., Basu S.
    Year: 2019 | IIM Bangalore
    Source: IIMB Management Review
    DOI: 10.1016/j.iimb.2018.08.004

The study examines panel data for 46 Indian banks with 31 bank specific financial ratios over eight years (2007 to 2014). Together, these ratios reflect operating capability, liquidity, solvency, profitability, capital adequacy and business development capacity aspects across Indian banks that affec...(Read Full Abstract)


Analysis of tandem polling queues with finite buffers

  • Authors: Suman R., Krishnamurthy A.
    Year: 2019 | IIM Bangalore
    Source: Annals of Operations Research
    DOI: 10.1007/s10479-019-03358-0

We analyze a tandem polling queue with two stations operating under three different polling strategies, namely: (1) Independent polling, (2) Synchronous polling, and (3) Out-of-sync polling. Under Markovian assumptions of arrival and service times, we conduct an exact analysis using Matrix Geometric...(Read Full Abstract)


Angel Investments in India – Trends, Prospects and Issues

The academic note which forms the first part of this article is intended to serve as a background for the round table on “Angel investments in India: Trends, Prospects and Issues”. The note begins with a description of the investment activity of individual angels and angel networks, presents an illu...(Read Full Abstract)


Are there social returns to education in developing countries? Evidence from Indonesia

  • Authors: Joshi R., Subramanian C., Swaminathan S.
    Year: 2019 | IIM Bangalore
    Source: Economic Development and Cultural Change
    DOI: 10.1086/698165

Despite growing public-sector investment in education in developing economies, there are few studies that have examined the efficacy of these investments. In this paper, we estimate social returns to education in Indonesia, using individual-level data on wages from five waves of the Indonesia Family...(Read Full Abstract)


Ask your doctor whether this product is right for you: a Bayesian joint model for patient drug requests and physician prescriptions

  • Authors: Pareek B., Liu Q., Ghosh P.
    Year: 2019 | IIM Bangalore
    Source: Journal of the Royal Statistical Society. Series A: Statistics in Society
    DOI: 10.1111/rssa.12365

The goal of this research is to study jointly physician prescription decisions and patient drug request behaviours. We have adopted a binary logit model and a multinomial logit model to study patient drug request data with excessive zero requests and a multinomial logit model to capture physician pr...(Read Full Abstract)


Asset liability management model with decision support system for life insurance companies: Computational results

  • Authors: Dutta G., Rao H.V., Basu S., Tiwari M.K.
    Year: 2019 | IIM Bangalore
    Source: Computers and Industrial Engineering
    DOI: 10.1016/j.cie.2018.06.033

Big Data Analytics is an important and flexible tool available for data analysis and informed decision making. In this paper, we look at the use of Big Data Analytics in asset liability management and asset allocation in uncertain economic situations using stochastic linear programming (SLP). In par...(Read Full Abstract)


ASSET PRICE BUBBLES AND TECHNOLOGICAL INNOVATION

  • Authors: Shin J.K., Subramanian C.
    Year: 2019 | IIM Bangalore
    Source: Economic Inquiry
    DOI: 10.1111/ecin.12695

We introduce borrowing constraints into a two-sector Schumpeterian growth model and examine the impact of asset price bubbles on innovation. In this environment, rational bubbles arise when the intermediate good producing R&D sector is faced with adverse productivity shocks. Importantly, these bubbl...(Read Full Abstract)


Attenuating the negative effects of network change on innovation: A whole network level analysis of Taiwanese business groups

  • Authors: Li S., Yayavaram S.
    Year: 2019 | IIM Bangalore
    Source: Asia Pacific Journal of Management
    DOI: 10.1007/s10490-018-9621-9

This paper investigates when and how changes in interorganizational networks affect innovation at a whole-network level. We consider three forms of network change as suggested by prior research on networks: membership change, change in network structure, and tie restructuring. We examine the indepen...(Read Full Abstract)


Beliefs about the Meaning of Life in American and Indian College Students: Similar or Different?

The top ten themes regarding beliefs about the meaning of life were obtained from archival research by Kinnier et al. (J Humanist Psychol 48:196–202, 2003) from quotes of eminent people like Einstein, Gandhi, Nietzsche, and the Dalai Lama. These themes included the following: “To enjoy or experience...(Read Full Abstract)


Capacity Allocation among Suppliers in the Presence of Spot Market

  • Authors: Jain T., Hazra J.
    Year: 2019 | IIM Bangalore
    Source: IEEE International Conference on Industrial Engineering and Engineering Management
    DOI: 10.1109/IEEM.2018.8607555

We consider a supply chain with two suppliers and one buyer. The buyer faces uncertain demand decides to reserve some capacity through the two suppliers. The buyer also sources the remaining capacity from the spot market if demand exceeds the reserved capacity. The suppliers have finite capacity and...(Read Full Abstract)


Classification for regulated industries: A new index

  • Authors: Awasthi K., Yayavaram S., George R., Sastry T.
    Year: 2019 | IIM Bangalore
    Source: IIMB Management Review
    DOI: 10.1016/j.iimb.2019.01.002

While there has been extensive research and practitioner interest in regulated industries, the classification of regulated industries, as used in many previous studies, is dated, not comprehensive and lacks consensus. This paper provides an alternative classification of regulated industries in India...(Read Full Abstract)


Determinants of employee eco-initiatives in Indian hotel industry

  • Authors: Tom M., Soumyaja D.
    Year: 2019 | IIM Bangalore
    Source: International Journal of Environment, Workplace and Employment
    DOI: 10.1504/IJGEI.2018.097150

Results of a questionnaire survey completed by 402 respondents who were all employees of hotels that have adopted eco-friendly practices showed that eco-initiatives are significantly and positively correlated to conservatism, commitment to the cause of the environment, and monetary rewards and recog...(Read Full Abstract)


Digital accessibility: Challenges and opportunities

This round table is focussed on outlining barriers to digital accessibility, solutions, and possible next steps to ensuring digital accessibility. In setting the context of the round table discussion, the article first outlines what accessibility involves, accessibility standards and guidelines, and...(Read Full Abstract)


Do social networks facilitate the spread of Ponzi schemes? Evidence from a primary survey

  • Authors: Dutta S., Sarkar A.
    Year: 2019 | IIM Bangalore
    Source: Economic and Political Weekly

Ponzi schemes, which have become widespread in some parts of the country, including eastern India and West Bengal, have inflicted heavy losses on the investors and have claimed several human lives. A primary survey shows how social networks created by self-help groups, though they provide higher inc...(Read Full Abstract)