DECISION RULES IN PRODUCTION PLANNING UNDER CHANGE-CONSTRAINED SALES*

Alternative decision rules for aggregate production scheduling are specified here under chance-constrained sales and compared with the HMMS model. These rules are evaluated for their performance on the basis of simulated data on sales and it is found that the linear decision rules of the HMMS model can be considerably improved.     

Gender,tribe and development: a case study of the Reang tribal community in Tripura (Northeast India)

The article critically examines the gendered impacts of state-led development among the Reang tribal community in Tripura (Northeast India) and outlines causes of gender-based inequalities that affect Reang women’s ability to engage in livelihood, achieve financial independence and participate in political affairs of the state. The article outlines two interlinked arguments. First, gender-based inequalities are not adequately addressed by the postcolonial Indian state which tends to homogenise members of tribal communities through development policies by privileging ethnicity over gender. Second, gender-based inequalities are also not adequately addressed within the Reang community highlighting complex intra-tribal dynamics wherein differential notion of inequalities among the Reangs and position of certain influential actors within the community determines which issues are addressed and which are marginalised.     

Structural versus nonstructural form of social capital: impact of ethnicity along caste and religious dimensions in Indian context

Despite much research work on the effect of social capital or the production of social capital along ethno-linguistic or racial dimensions, there is hardly any study in this line along the much fragmented character of Indian ethnicity. This article studies the impact of ethnicity along caste and religious dimensions on the growth of social capital in the Indian context. A simple theoretical model indicates that individual ethnicity formed out of individuals' separate pairwise connections with people, who are either of the same ethnic dimension or of different ethnic dimensions, is the only factor affecting endogenous social capital growth. Empirical results suggest that all forms of individual social capital are higher for people who are of the same caste or religion. It also shows that individuals' ethnicity with the same caste or religion is the only factor influencing high performance on the productivity of aggregate social capital in general and nonstructural form of social capital in particular.     

Use of asymmetric loss functions in sequential estimation problems for multiple linear regression

When estimating in a practical situation, asymmetric loss functions are preferred over squared error loss functions, as the former is more appropriate than the latter in many estimation problems. We consider here the problem of fixed precision point estimation of a linear parametric function in beta for the multiple linear regression model using asymmetric loss functions. Due to the presence of nuissance parameters, the sample size for the estimation problem is not known beforehand and hence we take the recourse of adaptive multistage sampling methodologies. We discuss here some multistage sampling techniques and compare the performances of these methodologies using simulation runs. The implementation of the codes for our proposed models is accomplished utilizing MATLAB 7.0.1 program run on a Pentium IV machine. Finally, we highlight the significance of such asymmetric loss functions with few practical examples.     

State-initiated development and the Reang ethnic minority in Tripura (North East India)

This paper explores the wider implications of state-led development on the Reang ethnic minority in the North East Indian state of Tripura, and in doing so presents a critical view on such development endeavours. Basing itself on the study of the relationship between the state and the ethnic minorities, this research argues the following: – first, most state-led development programmes are formulated on a preconceived notion of ‘backwardness’ in the ethnic minorities. Second, state-led development projects create internal fissures and ruptures within ethnic minorities on issues of what constitutes development. Third, often, state-led development programmes create an image of oneself as inherently ‘backward’, whereby the conditioning of the mind plays an important role in extending the desire of the members of an ethnic minority to achieve this ‘imagined modernity’.     

Medical tourism: reverse subsidy for the elite

The medical tourism sector in India has attracted global attention, given its phenomenal growth in the past decade. India is second only to Thailand in the number of medical tourists that it attracts every year. Estimates indicate that the medical tourism market in India could grow from $310 million in 2005 to $2 billion by 2012. These figures are significant when contrasted with India's overall health care expenditure - $10 billion in the public sector and $50 billion in the private sector. Factors that have contributed to this growth include the relative proficiency in English among health care providers and the cost effectiveness of medical procedures in India. Generally, most procedures in Indian hospitals cost a quarter (or less) of what they would cost in developed countries. The expansion of medical tourism has also been fueled by the growth of the private medical sector in India, a consequence of the neglect of public health by the government. India has one of the poorest records in the world regarding public financing and provisioning of health care. A growing driver of medical tourism is the attraction of facilities in India that offer access to assisted reproductive care technologies. Ironically, this is in sharp contrast with the acute neglect of the health care needs of Indian women. The Indian government is vigorously promoting medical tourism by providing tax concessions and by creating an environment enabling it to thrive. However, there is a distinct disjunction between the neglect of the health care needs of ordinary Indians and public policy that today subsidizes the health care of wealthy foreigners.     

Rational Choice and von Neumann– Morgenstern’s Stable Set: The Case of Path-dependent Procedures

Describing a procedure in which choice proceeds in a sequence, we propose two alternative ways of resolving the decision problem whenever the outcome is sequence sensitive. One way yields a rationalizable choice set, and the other way produces a weakly rationalizable choice set that is equivalent to von Neumann–Morgenstern’s stable set. It is shown that for quasi-transitive rationalization, the maximal set must coincide with its stable set.     

On a concept of representative democracy

Political theory distinguishes between two concepts of representative democratic decisions. Under the first concept, representatives do not decide issues as independent individuals but merely reflect the will of their constituencies; under the second, the decisions are made by the elected representatives themselves on the basis of their independent judgments on political issues. In the literature of democratic choice, the first concept has been formalized by Murakami, Fishburn, Pattanaik among others, in terms of decision procedures where the representative is identified with the preference-pattern emerging from the aggregation of the preferences of individual voters in a given constituency. Here we formalize the second type of representative democracy and show that it comes into conflict with certain essential features of a democratic group decision rule. In particular decisiveness and monotonicity are violated. The violation of monotonicity is of particular significance because it has come to be regarded as one of the fundamental principles for the ethical acceptability of democratic decision procedures.I am also grateful to the University Grants Commission of India for the financial assistance in carrying out this study.I wish to acknowledge my great debt to Professor Prasanta K. Pattanaik, my supervisor, both for initiating me to this problem and for his invaluable comments, criticisms and guidance. The paper acquired much of its present status through the discussions I had with him. Responsibility for any error, of course, rests with me.     

Models of economic planning under uncertainty: A selective survey and appraisal

Uncertainty and risk have played significant roles in policy making, at the micro and macro levels, from formulation of policy models to their actual implementation in several countries. The impact of risk aversion on policy making has differedm however, both in magnitude and intensity. Thus, for less developed countries with large commodity exports, stabilization policies have played a role as important as those for income growth and employment; for centrally planned economies, the investment cycles leading to large-scale divergences of actual from planned targets in strategic sectors have led policy makers to consider the need for building adequate safety margins in the planning process. Finally, for developed economies, the applied theory of indicative planning and decentralization has stressed the various informational gaps and competing risks that may impede an efficient and cooperative solution between private and public sectors. A selective survey and appraisal of the planning methods as they relate to risk and uncertainty is attempted here for less developed, centrally planned, and developed market economies.     

Three-stage and accelerated sequential point estimation of the normal mean using LINEX loss function

Consider a normal population with unknown mean μ and unknown variance σ². We estimate μ under an asymmetric LINEX loss function such that the associated risk is bounded from above by a known quantity w. This necessitates the use of a random number (N) of observations. Under a fairly broad set of assumptions on N, we derive the asymptotic second-order expansion of the associated risk function. Some examples have been included involving accelerated sequential and three-stage sampling techniques. Performance comparisons of these procedures are considered using a Monte-Carlo study.