Structural change and international stock market interdependence: Evidence from Asian emerging markets

This study investigates the evolving pattern of the interdependence among selected Asian emerging markets and three major stock markets (Japan, UK and US). Using rolling cointegration methods and the recently developed algorithms of inductive causation, we found that time-varying cointegration relationships exist among these stock markets. The results indicate that the wave of financial liberalization policies in the early 1990s led to a significant increase in market linkages which was later weakened during the 1997 Asian financial crisis. Furthermore, the data indicate that Japan and the US have the greatest influence on the emerging markets while the influence of Singapore and Thailand has increased since the Asian financial crisis.     

Designing a reverse logistics network for optimal collection, recovery and quality-based product-mix planning

This study proposes an integrated, reverse logistics supply chain planning process with modular product design that produces and markets products at different quality levels. A mixed integer programming (MIP) model formulates the overall planning process required to maximize profit by considering the collection of returned products, the recovery of modules and the proportion of the product mix at different quality levels. This paper proposes the collection of returnables (end-of life, defective, product under warranty) through retail outlets combined with the recovery of modules from the collected products using a network of recovery service providers. The proposed modular product design approach would create a design criterion that provides an improved recovery process at a lower cost. This study uses a total supply chain view that considers the production, transportation and distribution of products to customers, while a numerical problem illustrates the applicability of the models.     

Participatory institutions: The context of common and private property resources

Participation is the initiation and continuance of an active process by which beneficiary groups influence the direction and execution of development activity. In the context of resource management participatory institutions often present an alternative when the market and/or the state fail to maintain resource stocks at desirable levels. This paper presents two case-studies of the emergence of participatory institutions and builds up analytical models that explain the process of their evolution in an inter-temporal framework.It is shown that the evolution, sustenance and replication of participation and its impact on levels of resource conservation depends on (a) the nature of the links between common and private property resources, (b) the possibility of taking advantage of scale economies, and finally (c) the distributional rules and arrangements.     

Generalized R-estimators under conditional heteroscedasticity

In this paper, we extend the classical idea of Rank estimation of parameters from homoscedastic problems to heteroscedastic problems. In particular, we define a class of rank estimators of the parameters associated with the conditional mean function of an autoregressive model through a three-steps procedure and then derive their asymptotic distributions. The class of models considered includes Engel's ARCH model and the threshold heteroscedastic model. The class of estimators includes an extension of Wilcoxon-type rank estimator. The derivation of the asymptotic distributions depends on the uniform approximation of a randomly weighted empirical process by a perturbed empirical process through a very general weight-dependent partitioning argument.     

Environmental Degradation and Population Movements: The Role of Property Rights

This study examines the linkages between environmental degradation (viewed primarily as deforestation and land degradation) and the movement of population from one region to another within a developing country. The hypothesis postulated is that the link between population and environmental degradation is mediated by the nature of property rights in land. This hypothesis is examined with the help of two alternative methodologies. Firstly, a simultaneous equations model using data for the arid and semi-arid region of Western India illustrates that outmigration from the region is largely the consequence of push factors such as environmental degradation and decrease in common land. Alternatively, micro experiments in environmental protection and the creation of common property rights on open access land in the same region indicate that the association between migrational change, creation of common property rights and participation indices is high. It can be concluded that once property rights are well defined with the help of appropriate institutional arrangements, labour moves towards the creation of common assets and an improvement in the environment takes place. Out migration is prevented and higher levels of population are supported by the same resources. The authors wish to thank Ms. Seema Bathla and Dr. Suresh Sharma for assistance in documentation, data collection and analysis.