Health Care Supply Chain Design: Toward Linking the Development and Delivery of Care Globally*

This article is motivated by the gap between the growing demand and available supply of high‐quality, cost‐effective, and timely health care, a problem faced not only by developing and underdeveloped countries but also by developed countries. The significance of this problem is heightened when the economy is in recession. In an attempt to address the problem, in this article, first, we conceptualize care as a bundle of goods, services, and experiences—including diet and exercise, drugs, devices, invasive procedures, new biologics, travel and lodging, and payment and reimbursement. We then adopt a macro, end‐to‐end, supply chain–centric view of the health care sector to link the development of care with the delivery of care. This macro, supply chain–centric view sheds light on the interdependencies between key industries from the upstream to the downstream of the health care supply chain. We propose a framework, the 3A‐framework, that is founded on three constructs—affordability, access, and awareness—to inform the design of supply chain for the health care sector. We present an illustrative example of the framework toward designing the supply chain for implantable device–based care for cardiovascular diseases in developing countries. Specifically, the framework provides a lens for identifying an integrated system of continuous improvement and innovation initiatives relevant to bridging the gap between the demand and supply for high‐quality, cost‐effective, and timely care. Finally, we delineate directions of future research that are anchored in and follow from the developments documented in the article.     

Customization Strategies in Electronic Retailing: Implications of Customer Purchase Behavior*

In this article, we assess the implications of customer purchase behavior on customization in electronic retailing. We develop a classification scheme for customization strategies in electronic retailing. The classification scheme comprises three customization strategies: (i) transaction customization, (ii) decision customization, and (iii) product customization. We develop scales to measure each of the three customization strategies using a systematic four‐stage scale development process. Building on the extant literature on customer purchase behavior, we design an experiment to examine the alignment of the customization strategies with three well‐established product types: (i) convenience goods, (ii) shopping goods, and (iii) specialty goods, and its implications for customer value. The findings of the experiment indicate that there are significant differences in the customer value for the three customization strategies across the three product types. The contributions of the study, the managerial implications of the study findings, limitations, and directions for future research are discussed.     

On the consistency between model-and design-based estimators in survey sampling

In finite population sampling, often a distinction is made between model-and design-based estimators of the parameters of interest (like the population total, population variance, etc.). The model-based estimators depend on the (known) parameters of the model, while the design-based estimators depend on the (known) selection probabilities of the different units in the population. It is shown in this paper that the two approaches are not necessarily incompatible, and indeed can often lead to the same estimator. Our ideas are illustrated with the Horvitz-Thompson, and the generalized Horvitz-Thompson estimator. These estimators are identified as hierarchical Bays estimators. Also, certain “stepwise-Bayes” estimators of Vardeman and Meeden (J. Stat. Inf. (1983), V7, pp 329-341) are unified from a hierarchical Bayes point of view.     

Women's health and HIV: experience from a sex workers' project in Calcutta

This article narrates an inspiring discovery for development professionals who are searching for ways to empower women to protect themselves, their partners and families from HIV infection. This was based on the experience of the author as she came across a movement of sex workers who successfully negotiated safe sex in the heart of Calcutta, India. Employing focus group discussions, informal interviews and home visits during 1999, the author discovered that a Sexually Transmitted Disease/HIV Intervention Project has been set up to promote disease control and condom distribution among these sex workers. Operating on three principles for its work--respect, recognition, and reliance, the program aims to create an impact on the sex workers themselves and their peers. Likewise, the need to build alliances with clients, training the police and forming the Durbar Mahila Samanvaya Committee were deemed as necessary. Several lessons were learned during the course of the research: use of stories and history to rally the community; retaining flexibility, meeting changing needs; using drama to promote communication; and negotiating with men and opposing patriarchy.     

On a further characterization of dispersion matrices based on the properties of regression

Motivated by the work of Sinha and Sinha (1976) on a formal characterization of the dispersion matrix based on the properties of regression in a specific situation (viz., the one enjoyed by the multinomial distributions), we have considered here a similar problem but in a different situation and obtained the most general formal representations of the underlying dispersion matrices.     

On complete classes of experiments for certain invariant problems of linear inference

For certain non-singularly estimable full-rank appropriately invariant problems of linear inference in the setting of block designs, some complete classes of experiments have been characterized through the relation between the relevant C-matrices and their g-inverses (of the Moore-Penrose type) in regard to the specific invariance criterion discussed here. It follows that for a $\text{G}$-invariant non-singularly estimable full-rank problem, a complete class of experiments formally consists only of $\text{G}$-invariant designs.     

Some aspects of simplicity in the analysis of block designs

In this article, we develop and examine a group-theoretic approach to the notion of simplicity in the analysis of block designs. This calls for invariance considerations (in a specialized sense). The defining conditions (for simplicity) in this approach, as they stand, appear to be quite rigid. We have, therefore, imposed some weaker conditions and examined further aspects of the problem. The results seem to be quite interesting.     

全球领跑企业的成功基因

在大多数人看来，新兴市场上发展起来的公司在进军全球的征途中一定是步履维艰的。那些帮助他们在本土市场上取得成功的因素——良好的本地关系，在本地拥有的无形资产，对本地客户的了解等，很可能会成为他们进军海外的阻碍。     

Improving School Achievement and Inter‐group Relations for Children Placed at Risk: the Roots and Wings program

Roots and Wings is a comprehensive elementary‐school program designed to ensure that all children achieve world class standards in reading, writing and language arts, mathematics, science, history and geography; and can apply their knowledge to solve real‐world problems. Critical to these goals is increasing the achievement of students placed at‐risk as a consequence of poverty, disabilities, language problems, or other factors. Roots and Wings extensively employs cooperative learning to promote student motivation, socialization, appreciation of diversity, and academic achievement. Although cooperative learning offers a variety of potential benefits, it can be challenging to use for teachers and students more accustomed to traditional methods. This paper presents research in inner‐city elementary schools using the Roots and Wings design and identifies several factors that facilitate the change process and quality of cooperative classroom activities.