Exactly optimal sampling designs for processes with a product covariance structure

The author considers the problem of finding exactly optimal sampling designs for estimating a second‐order, centered random process on the basis of finitely many observations. The value of the process at an unsampled point is estimated by the best linear unbiased estimator. A weighted integrated mean squared error or the maximum mean squared error is used to measure the performance of the estimator. The author presents a set of necessary and sufficient conditions for a design to be exactly optimal for processes with a product covariance structure. Expansions of these conditions lead to conditions for asymptotic optimality.     

Discounting climate change

In this paper I offer a fairly complete account of the idea of social discount rates as applied to public policy analysis. I show that those rates are neither ethical primitives nor observables as market rates of return on investment, but that they ought instead to be derived from economic forecasts and society's conception of distributive justice concerning the allocation of goods and services across personal identities, time, and events. However, I also show that if future uncertainties are large, the formulation of intergenerational well-being we economists have grown used to could lead to ethical paradoxes even if the uncertainties are thin-tailed. Various modelling avenues that offer a way out of the dilemma are discussed. None is entirely satisfactory.     

DECENTRALIZATION AND PARTICIPATORY SERVICE DELIVERY

User participation has been promoted to improve the quality, responsiveness, and outreach of public services in India. This qualitative study evaluates new grassroots institutions—Village Education Committees and Mothers’ Committees—in Andhra Pradesh, which promoting parents’ participation in the management and monitoring of local schools and maternal/child health services. Although the committees were found to have increased participation in public affairs by the poor and brought about some improvements in service quality, inclusive and meaningful participation has often been hindered by illiteracy and lack of information, as well as caste, gender, and socioeconomic inequalities. The article suggests that there are considerable tensions between inclusive participation and committee effectiveness as members need skills, status, and resources in order to have a meaningful impact on service provision. In addition, research findings point to the need for more structured opportunities for committee members to interact with authorities and service providers, as well as for children to voice their concerns and ideas. Lastly, in order to tackle childhood poverty more holistically, the focus of these committees should be revised to give greater emphasis to improving service quality improvements and cross-sectoral synergies, rather than the current move narrow focus on infrastructural development and singlesector initiatives.     

Population and Resources: An Exploration of Reproductive and Environmental Externalities

This article identifies four types of social externalities associated with fertility behavior. Three are shown to be pronatalist in their effects. These three are exemplified by the way theories of economic growth treat fertility and natural resources, the way population growth and economic stress in poor countries are seen by environmental and resource economists, and the way development economists accommodate environmental stress in their analysis of poverty. It is shown that the fourth type of externality, in which children are regarded as an end in themselves, can even provide an invidious link between fertility decisions and the use of the local natural‐resource base among poor rural households in poor countries. The fourth type is used to develop a theory of fertility transitions in the contemporary world; the theory views such transitions as disequilibrium phenomena.     

Caste and Distributive Justice: Can Social Policy Address Durable Inequalities?

This article examines the impact of social policy interventions on caste inequalities. The article accepts the proposition by Charles Tilly that durable inequalities are entrenched solutions while addressing organizational problems of society. The political economy approach to caste enables us to understand how the discriminatory practices around caste are durable. The article examines two types of social policies set up to deal with caste discrimination. The first type of policies are particularistic policies which directly address the concerns of the members of the depressed castes. The second type of policies are aimed at the general population, but from which a large number of depressed caste members benefit. The article concludes that both types of policies have only an ameliorative function rather than an emancipation role. It is argued here that ‘social policy’ in the context of durable inequality requires redefinition to include political interventions. The administrative view of social policy focuses heavily on the state, and in the context of durable inequality, the legitimacy of the state itself is in question. On the other hand, mobilization around politics addresses the organizational anomaly of the society, which is at the root of durable inequality.     

Re-imaging everyday routines and educational aspirations under COVID-19 lockdown: Narratives of urban middle-class children in Punjab,India

Based on in-depth interviews with 24 middle-class Indian child participants, this is the first exploratory qualitative study, in India, to demonstrate the ways in which children as reflexive social actors re-negotiated everyday schedules, drew on classed resources at their disposal and made sense of the impact of the pandemic on their educational pathways and future aspirations. These narratives offer a unique lens on the politics of middle-classness and its constitutive relation to constructions of normative childhoods in contemporary India. Study findings contribute to the sociology of Indian childhood and more generally help enrich our understanding of southern childhoods and the reproduction of inequalities in contemporary India.     

Effect of urbanization on the dynamics of ecosystem services: An analysis for decision making in Kolkata urban agglomeration

Urban Ecosystems - Urbanization has profound influence on the changes of land use and land cover, which on the other hand exert significant impact on ecosystem services and their values, especially...     

Failure Rate Transform of the Weibull Variate and its Properties

The failure rate of a life time distribution has so for been studied in the time domsin. The present paper extends the failure rate transform in the frequency domain. For this purpose, the parent life time distribution has been taken as the Weibull distribution and different properties of the distribution of the failure rate transform have been presented including some characterisations of the Weibull distribution. Some comparative studies have also been made between the parent distribution and the failure rate transform distribution in respect of convex, star shaped and super additive orderings and expectation.     

On the quality of life in India: An exploratory survey

This is an abridged version of a paper written for the Unesco, Paris, to explore the feasibility of studying in India the role of value systems and life goals in quality of life, with reference to social structural variations and the prevailing socioeconomic conditions. Time and money constraints did not permit the examination of Indian society in its structural and cultural diversity. The focus was on the indication of possibilities of variation in the subject matter and how to elicit such variations. Moreover, in its abridged form, the paper deals essentially with the methodology of studying the quality of life in any society instead of substantial findings.     

Finite sample properties of maximum likelihood and quasi-maximum likelihood estimators of egarch models

In this paper I examine finite sample properties of the maximum likelihood and quasi-maximum likelihood estimators of EGARCH(1,1) processes using Monte Carlo methods. I use response surface methodology to summarize the results of a wide array of experiments which suggest that the maximum likelihood estimator has reasonable finite sample properties. The Gaussian quasi-maximum likelihood estimator has poor finite sample properties when the data generating process has conditional excess kurtosis. Some of these poor properties appear to be asymptotic in nature.