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Working Papers | 2014

Breadth-first and Best-first Exact Procedures for Regular Measures of the Multi-mode RCPSP

Dayal Madhukar and Sanjay Verma

The multi-mode resource constrained project scheduling problem (MM RCPSP) is a NP-hard problem representing a generalization of the well-studied RCPSP. Depth-first tree search approach by Sprecher & Drexl (1998) is the best known exact solution tree search procedure for this problem. In this paper we present two exact solution single-processor approaches: a breadth-first approach and a best-first monotone heuristic. The comparison with depth-first and CPLEX show promising results on small problem sets. We report extension of the breadth-first approach to yield exact multi-objective solutions for the PSPLIB (Project Scheduling Problem Library, Kolisch & Sprecher, 1997) problem sets which is the first of its kind.

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Working Papers | 2014

Issues in Water Rights, Institutional Design and Pricing that Need Resolution

Sebastian Morris

In this paper the core issues that need resolution before water development especially by the private sector, and efficient usage can happen are very briefly outlined. These are

Water rights have to be defined more functionally to include tradability. There is a need to move away from price based subsidies in electricity for irrigation and in irrigation water, to endowment based subsidies where these endowments can be traded.

Administrative and organizational reform of parastatals in water, is most vital. The starting point of the same would be to grant operational autonomy and empower the leadership of water development departments. Creating institutionalized rules to overlay endowments and rights in cooperative water systems that can put free these organisations from the free-rider problem to lead to efficient management of water and to the enhancement of its generation. A strategic shift to more storage especially in the Deccan and its extensions, and to counter opposition from the post-modernist NGOs both within and outside the country by having excellent policies and actions to manage displacement and rehabilitation would also be necessary. River training for storage, canals, and recreation and navigation along with urban renewal can be an important way to finance vast infrastructure to develop cities and add to water resources as well.

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Working Papers | 2014

A Tale of Five Cities: Heat Waves, Cold Spells and Mortality Risk in Urban India

Hem H. Dholakia and Amit Garg

Background: Temperature extremes as a consequence of changing climate are known to have large morbidity and mortality impacts. Studies assessing mortality risk due to heat waves and cold spells are largely absent in urban India. Addressing this gap is critical in developing adaptation measures to protect the health of vulnerable populations in urban India.
Methods: Daily all-cause mortality, temperature and humidity data were collected for five cities-Ahmedabad, Bangalore, Hyderabad, Mumbai and Shimla spanning 2005 - 2012. We developed Poisson regression models to study 'the main temperature effect' as well as 'additional impacts' of sustained high and low temperatures (i.e. heat and cold waves) on all-cause mortality risk.
Results: We find large heterogeneity among mortality risks across urban areas. Typically, risks increase with intensity of heat (cold) waves. Populations in hotter environments may be more susceptible to cold related impacts and vice-versa. Across urban areas the main temperature effect captures most of the mortality risk. We find that 'additional impacts' due to sustained temperatures (heat and cold waves) is not significant.
Conclusions: This is one of the first multi-city studies to examine mortality risk due to heat and cold waves in Indian cities that are spread across climatic regions and topographies. Our findings highlight the need for developing planned adaptation measures in Indian cities to minimize health impacts.

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Working Papers | 2014

Forecast Accuracy Along Booking Profile in the National Railways of an Emerging Asian Economy: Comparison of Different Techniques

Goutam Dutta and Divya Pachisia

The National Railways of an Emerging Asian Economy (NREAE), the second largest railway network in the world, is facing growing challenges from low fare airlines. To combat these challenges, NREAE has to adopt revenue management systems where efficient forecasting plays a crucial role. In this paper, we make an attempt to compare various forecasting techniques to predict railway bookings for the final day of departure. We use NREAE data of 2005-2008 for a particular railway route, apply time series [moving average, exponential smoothing, and Auto Regressive Integrative Moving Average (ARIMA), linear regression, and revenue management techniques (additive, incremental, and multiplicative pickup] to it and compare various methods. To make an efficient forecast over a booking horizon, we employ a weighted forecasting method (a blend of time series and revenue management forecasts) and find that it is successful in producing average Mean Absolute Percentage Error (MAPE) less than 10% for all fare classes across all days of the week except one class. The advantage of the model is that it produces efficient forecasts by attaching different weights across the booking period.

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Working Papers | 2014

Business Dispute Resolution: Taking Arbitration Clause Seriously

Anurag K. Agarwal

Dispute resolution through arbitration is the chosen method for businesses, however, it has often been experienced that due to a poorly drafted arbitration clause in the main contract or in a separate contract, there is no effective arbitration between the parties and there is a new dispute regarding the existence of the arbitration clause, which has to be resolved at the preliminary stage so as to enable the parties to take part in arbitration proceedings or go ahead with litigation in the public courts. The possibility of a decision regarding the interpretation of arbitration clause be appealed in a higher court depends on the nature of parties and the amount at stake. Litigious parties, not willing to budge even a little, have no qualms in fighting it out till the highest court. And, in this process the original dispute takes a back seat. The paper examines some of the interesting disputes regarding the arbitration clause, which were decided by courts, and could have easily been avoided had the parties been cautious at the time of entering into the contract. The paper also provides suggestions for some common and avoidable problems to help businesses save time, effort and money which otherwise get wasted in getting the dispute resolution clause interpreted in the courts.

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Working Papers | 2014

Location Identification for Rapid Evacuation from a
Disaster Site: A Case Study from KAPS

Debjit Roy, Anuj Sharma, Ashish Kumar, and Vivek Saurabh

Robust plans need to be developed for rapidly evacuating victims from a nuclear disaster site. Although nuclear plants are constructed with multiple redundant safety features, the chances of a leak can never be zero. In the event of a nuclear disaster, there is a need for an efficient evacuation plan for the affected area. The plan should include shortest possible evacuation routes, rallying post for the evacuees and optimized resource allocation. Considering Bardoli as the affected area for our purposes, we have collected data like distance of each village from the radiation source, its road connectivity with nearby villages, population and availability of transportation resource. We proposed First Safety Point (FSP) for each village and its respective rallying post while providing the detailed evacuation route for each village. We have also developed a resource optimizing heuristic to allocate transportation resources to each village.

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Working Papers | 2014

Priority Service System Optimization under Service Level Constraints

Sachin Jayaswal

We consider a service system that serves one class of customers, which is willing to pay a premium for a faster delivery, with priority over the other class, which is more price sensitive but is willing to wait longer. The demand from one class depends not only on the price and delivery time quoted to it, but also on that offered to the other class. The service provider needs to select the price and delivery time quoted to the two classes, and the required service capacity to meet the quoted delivery times with a certain degree of reliability, so as to maximize its rate (per unit time) of earning profit. This results in a non-linear priority queue optimization model, for which the analytical expression for service level constraint for the low priority customers is unknown. We provide a cutting plane method to solve the problem, where constraints to be satisfied are identified iteratively from results of matrix geometric evaluation of the proposed system alternative, which are then added to the mathematical model for re-optimization.

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Working Papers | 2014

The Potential of Mobile Coupons: Current Status and Future Promises

Abhishek and Nidhi Mathen

Coupons continue to be one of the most favourite promotional tools for the marketers to influence, incentivize, and encourages customers towards trying the product. Mobile-coupon (m-coupon), an extension of the traditional coupons which is accessible on mobile device, has emerged as one of the promising tool in marketer's arsenal. Since the mobile device is a highly personalized medium, it enhances the opportunity for the marketers to reach out to the potential customers in an effective manner. The opportunity to customize and provide flexibility, and the convenience that m-coupons provide to the customers/mobile-users are the main reasons for the growth of m-coupons. This paper traces the origins of m-coupon and how marketers are making cost-effective use of different types of m-coupons in order to convert the potential customers into buyers of their products and services. The paper provides a sketch of strategies adopted, success areas, drawbacks and limitations observed, while also looking at some of the success stories across the different approaches. This paper concludes by examining the potential which m-coupon holds and the implications for Indian markets.

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Working Papers | 2014

Preparing IAS Officer Trainees for the Role of District Magistrate: A Competency-Based Approach

Sanjeev Chopra, Ram Kumar Kakani, and Vishal Gupta

The Indian Administrative Service (IAS) officers occupy a strategic position in Indian public governance system. Government has generally laid a lot of emphasis on the training programmes for IAS officers to ensure that they are equipped with the right set of knowledge, skills and attitude to effectively perform in the varied assignments that they occupy. It is increasingly being recognized that more than knowledge, skill and attitude, proficiency in certain deep seated abilities result in superior and more effective performance of an individual in an organizational setting. These deep seated abilities are commonly termed as competencies. In this paper an exercise has been undertaken to identify the key competencies which are required for effectively performing the role of a District Magistrate (DM). The focus of the two years training programme at Lal Bahadur Shastri National Academy of Administration, (LBSNAA) is to equip the officers for the first decade of service during which they are also expected to serve as District Magistrates (DM). It is expected that clarity about the competencies required to become an effective DM will facilitate more efficient human resource management of the cadre of IAS officers including training, placement and performance management. This research paper based on extensive survey methodology is an attempt in that direction.

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Working Papers | 2014

What employers value in the MBAs they recruit: Rebalancing the management education curriculum

T. V. Rao, Siddhartha Saxena, Vijaya Sherry Chand, Rajeshwari Narendran, Kandaswamy Bharathan, and B H Jajoo

This paper seeks to answer the question, "In the Indian context, what insights can employers offer on the knowing, doing and being dimensions of the formation of an MBA graduate, that management education institutes can use to rebalance their curricula?" It uses the theoretical framework developed by Srikant Datar, David Garvin and Patrick Cullen in their 2010 study, Rethinking the MBA. The data for this paper came from in-depth interviews with 18 senior recruiters and a questionnaire survey of personnel from the human resource development function and line managers of 42 companies, 32 in the private sector and 10 in the public sector. The senior recruiters constituted a subset of the 42 respondents.

Their ability to develop knowledge and analytical ability better seems to advantage the better institutions. However, on the creativity and the being dimensions (ethics, commitment to organization and learning attitude), MBAs may be more homogeneous. Perhaps this indicates an opportunity for the top-ranked institutes to focus more on the "Being" dimension.

Indian employers clearly expect certain functional roles to be filled by fresh MBA graduates. What is expected by the employers in addition is a hands-on approach to work. This indicates that while rebalancing their curricula, business schools must retain a focus on their current strength in the "Knowing" dimension, while augmenting their stress on the "Doing" dimension.

Regarding the skill-sets noted by the employers, there is a set that is directly within the scope of the traditional knowledge-skill objectives of an MBA program, like analytical skills. Traditional MBA programs in the top-ranked institutes are strong on preparing students for this set of skills. However, of the eight curricular gaps identified by Datar and his colleagues, only four—leadership, creativity and innovation, critical thinking and communication, and understanding the purpose of business—seem to be very clearly on the radars of employers. Specific skills and qualities that can fit under global perspective, integration skills, recognizing organizational realities, and understanding the limits of models and markets, seem to be under-emphasized. Perhaps B-Schools, at least the top ones, can build on these, thus creating a greater awareness about these as emerging areas of curricular focus.

It is the "Being" dimension that seems to call for attention while making any attempt to rebalance the curriculum. Leadership means taking responsibility for implementing change, developing a certain depth as a person, willing to shed any stereotypes that one may have carried into the job, understanding the balance between a career and commitment to an organization, developing a commitment to practice, understanding one's own limitations, and working out one's expectations in a reasonable manner. In addition, developing an integrated perspective is an important aspect of developing the "Being" dimension. This is where the challenge for B-Schools lies. These qualities are not easy to develop in a classroom set-up, and call for more experiential methods of learning. B-Schools, by and large, are not as competent in these methodologies as they are in methods that develop analytical, instruction-based knowledge and skills.

The qualities that the employers would like stressed fall mainly under three labels which can be directions for curricular change: Practice Orientation, Team Work and Perspective Building. Finally, we present a set of six guidelines that seem to be important from the employers' perspective as a model for future curricular practice: Introduction of the curriculum through practice; Critical thinking and diagnosis; Integrative thinking; Capability for learning; Focus on a complex made up of Leadership, Team Player, Innovator, and Corporate Citizen; and Apprenticeship before award of the MBA degree.

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IIMA