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Working Papers | 2004

Fourier Representation of Climatic Data of Kothara-Kutch

T. Madhavan and Girja Sharan

Fourier series representations of some climatic variables were developed using data from the site of an experimental greenhouse at Kothara (Kutch). Hourly data was averaged over a month to yield a profile of an average day of that month. That was put through harmonic analysis to determine Fourier coefficients . Analytical expressions would be useful to those working on modelling.

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Working Papers | 2003

Law, Liberalisation and Globalisation in India: Just a Game of Chance?

Akhileshwar Pathak

This paper is a part of a larger research on the working of business law in India in the changing context of globalisation and liberalisation. The macro theme requires details of the changes in law, economy and business in different fields. However, as the changes in the economy were in a nascent stage, the details were yet to emerge. Now, after a decade of reforms, changes in different fields are beginning to be discernible. Towards creating a corpus on the working of law in its micro details, this paper takes up the law on holding of games, contests and lotteries for promotion of products and services. With liberalisation, as entry into production and services is no more a barrier, firms have got into aggressive and competitive trade practices to entice the customers. This has included proliferation of games, contests, lotteries and similar promotional schemes. The paper explores the working of the provision on the subject, contained in the Monopolies and Restrictive Trade Practices Act, and finds out that while the business practices in the post-liberalisation-globalisation period required better regulation, the interpretation of the law by the courts has made the law non-existent.

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Working Papers | 2003

Distribution of Cross-Section of Price Changes and Measurement of Inflation

Vineet Virmani

In this study we look at the statistical properties of components forming the Wholesale Price Index (WPI), the headline inflation index for the Indian economy. We find that not only is the distribution of price changes at the disaggregate level highly leptokurtic, but also the cross-sectional distribution of price changes is positively skewed. This has the implication that the weighted mean would fail to be an efficient estimator of inflation. Trimmed Means, belonging to the class of limited influence estimators, have been used by many central banks to get around the skewness problem. We also explore the use of trimmed means for efficiently estimating inflation for India. In particular, we study the robustness of trimmed means to the benchmark (Centered Moving Average vs. trends derived from the Hodrick Prescott Filter) and the evaluation criteria (Mean Absolute Deviation vs. Root Mean Square Error vs. an Asymmetric Loss Function). Although we study the performance of trimmed means against the weighted mean in some detail, we stop short of proposing any 'one' trimming pattern as the ideal. The selection of the headline inflation rate depends as much on its ability to track the underlying trend void of transitory disturbances as much on its ability to forecast future inflation and its correlation with money growth, something we don't deal with in the present study.

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Working Papers | 2003

Physical Characteristics of Some Vegetables Grown in Ahmedabad Region

Girja Sharan and Kishor Rawale

Physical dimensions, mass, shape and bulk density of vegetables grown around Ahmedabad have been determined. Measurements were carried out on samples at the farm immediately after harvest. Pattern underlying one of the characteristic dimensions has been identified. Statistical distribution that best described the pattern in all cases was found to be two parameter Weibull. Use of cluster analysis was illustrated in case of okra to determine the number of relatively homogenous groups into which the produce can be separated. Results may be useful to those working on unit technology and technology systems for fresh produce.

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Working Papers | 2003

Multiple products, multiple constraints, single period inventory problem: A Hierarchical solution procedure

Kumar Satyendra, V. Venkata Rao, and Tirupati Devanath

This paper presents the formulation and a hierarchical solution procedure of multiple products, multiple constraints, single period inventory problem. The hierarchical procedure decomposes the problem into a number of sub-problems equal to the number of constraints sets. Each sub-problem is solved optimally by applying Lagrange multipliers and satisfying Kuhn-Tucker conditions. The experimental results show that the hierarchical procedure performs well even when there are large a number of products and constraints.

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Working Papers | 2003

A heuristic procedure for one dimensional bin packing problem with additional constraints

Kumar Satyendra, V. Venkata Rao, and Tirupati Devanath

We proposed a heuristic algorithm to solve the one-dimensional bin-packing problem with additional constraints. The proposed algorithm has been applied to solve a practical vehicle-allocation problem. The experimental results show that our proposed heuristic provides optimal or near-optimal results, and performs better than the first fit decreasing algorithm modified to incorporate additional constraints.

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Working Papers | 2003

Exploring Mass Message Customization

Nande Kaustubh

The paper begins with the exploratory concept of 'mass customization' and then moves on to discuss the possibility of applying it in business communication. Further, it gives a brief framework within which to fit this concept. The author then argues the relevance of the concept in today's workplace. However, this paper does not discuss the details of the 'process of mass message customization.' It just hints to possible areas for further research and exploration.

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Working Papers | 2003

Supplier Reliability and Economic Reforms

Mokhopadhyay Partha

Production around the world is now increasingly characterized by shorter product cycles and just-in-time processes. Consequently, the reliability of the supplier is an important distinguishing characteristic. This paper presents a situation where suppliers in more distorted economies would be more prone, in equilibrium, to divert their production away from exports to the domestic market. As a result, importers allocate a lower share of import demand to such suppliers. It is shown that liberalization of such economies results in the importer allocating a relatively greater share of import demand to the supplier, which in turn, appears as an increase in the conomy's exports. This 'demand side' channel through which domestic liberalization affects a country's export has not yet been explored in the literature.

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Working Papers | 2003

Developing a Back Series of Monthly and Quarterly National Income Estimates for India: 1983Q1 – 1999Q4 (1993-94 = 100)

Vineet Virmani and Kapoor Rohit

In this study we present estimates of monthly and quarterly GDP for India starting 1983-84. Following the recommendations of the CSO (KK,2000) we interpolate annual GDP by economic activity using appropriate physical indications as the basis. Results are compared against the estimates provided by the CSO for the years 1996-97 onwards.

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Working Papers | 2003

Joint Sales Promotion: Prospects & Issues

Kureshi Sonal and Vyas Preeta

This study is an attempt to understand current consumer joint sales promotion in India and thereby identify related prospects and problems. For a conceptual overview, relevant literature in this area was studied. To gain an insight into current practices, announcements of the offers through secondary sources were compiled. A content analysis revealed that "Target market commonality" relationship was the prime reason for companies offering joint sales promotion. It was found that the usage of joint sales promotion was most prevalent in consumer durable category. There exists a prospect for using joint sales promotion in non-durable category. Identifying a suitable partner , planning and co-ordination are the main issues for a manager wanting to use this tool. A guideline regarding the above issues has been suggested.

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