Validation of the behavioral observation system. Using nurse ratings of acuity

1. One of the goals of the BOS is to gather supplemental, objective data to help unit administration determine patient acuity, and thus, staffing needs. 2. The BOS was developed to help provide information that is easily collected, objective, reliable, and valid. 3. The current study sought to establish preliminary support for use of the BOS to assess patient acuity and determine staffing needs. 4. Because the BOS can be completed as part of HSWs' daily tasks with little additional cost, the data can be available to decision makers to determine the unit's needs more accurately and efficiently.     

Homeless Affiliation, Location, and Sender Address in Return of Lost Letters

A field study used 1008 lost letters to test the hypotheses that the differences in returned responses would be attributable to the addressee (i.e., ending homelessness-control or preventing it among youth, veterans, and lesbians) and especially to a socially deviant addressee, that cultural differences between distribution locations might influence returned responses of lost letters, and that sender address (i.e., urban, rural, control) would also influence returned responses. Both addressees' affiliations and distribution location were associated with returned responses, with the lowest rates being for the Prevent Lesbian Homelessness Program affiliate overall and for the city of Pensacola, respectively. Antigay prejudice toward a deviant group may still be strong even when a helping act can be performed without intimate contact involving members of deviant group. Neither distribution location nor the sender or return address conditions were associated with different returned responses. Further testing of the lost letter technique, as a measure of public response, may be warranted.     

Supply Chain Scheduling: Distribution Systems

We study conflict and cooperation issues arising in a supply chain where a manufacturer makes products which are shipped to customers by a distributor. The manufacturer and the distributor each has an ideal schedule, determined by cost and capacity considerations. However, these two schedules are in general not well coordinated, which leads to poor overall performance. In this context, we study two practical problems. In both problems, the manufacturer focuses on minimizing unproductive time. The distributor minimizes customer cost measures in the first problem and minimizes inventory holding cost in the second problem. We first evaluate each party's conflict, which is the relative increase in cost that results from using the other party's optimal schedule. Since this conflict is often significant, we consider several practical scenarios about the level of cooperation between the manufacturer and the distributor. These scenarios define various scheduling problems for the manufacturer, the distributor, and the overall system. For each of these scheduling problems, we provide an algorithm. We demonstrate that the cost saving provided by cooperation between the decision makers is usually significant. Finally, we discuss the implications of our work for how manufacturers and distributors negotiate, coordinate, and implement their supply chain schedules in practice.     

A Framework to Analyze Cash Supply Chains

The Federal Reserve System of the United States is making changes to its cash recirculation policy to reduce depository institutions' (banks') overuse of its cash processing services. These changes will affect operating policies and costs at many institutions having large cash businesses and, in turn, impact cash transportation and logistics providers. This study provides the framework to study the cash supply chain structure and analyzes it as a closed‐loop supply chain. Additionally, it describes the cash flow management system used by banks in the U.S.     

A simple method for estimating a regression model for κ between a pair of raters

Agreement studies commonly occur in medical research, for example, in the review of X-rays by radiologists, blood tests by a panel of pathologists and the evaluation of psychopathology by a panel of raters. In these studies, often two observers rate the same subject for some characteristic with a discrete number of levels. The κ-coefficient is a popular measure of agreement between the two raters. The κ-coefficient may depend on covariates, i.e. characteristics of the raters and/or the subjects being rated. Our research was motivated by two agreement problems. The first is a study of agreement between a pastor and a co-ordinator of Christian education on whether they feel that the congregation puts enough emphasis on encouraging members to work for social justice (yes versus no). We wish to model the κ-coefficient as a function of covariates such as political orientation (liberal versus conservative) of the pastor and co-ordinator. The second example is a spousal education study, in which we wish to model the κ-coefficient as a function of covariates such as the highest degree of the father of the wife and the father of the husband. We propose a simple method to estimate the regression model for the κ-coefficient, which consists of two logistic (or multinomial logistic) regressions and one linear regression for binary data. The estimates can be easily obtained in any generalized linear model software program.     

Modeling Denomination Structures

Previous work on the denomination structure of currency treats as exogenous the distribution of transactions and the denominations held by people. Here, by way of a matching model, both are endogenous. In the model, trades in pairwise meetings alternate in time with the opportunity to freely choose a portfolio of denominations and there is a trade‐off between the benefits of small‐denomination money for transacting and the costliness of carrying a large quantity of small‐denomination money. For a given denomination structure, a monetary steady state is shown to exist. The model implies that too small denominations are abandoned.     

Insights on medical tourism: markets as networks and the role of strong ties

Despite a huge amount of speculation and expectation surrounding medical tourism, hard empirical evidence is only now beginning to emerge. This paper widens the focus of discussion by contrasting two country experiences (UK and Korea) which on the surface illustrate the diversity of medical tourism and little else. However, considered more comparatively, the accounts contribute toward wider, albeit tentative, theoretical understandings, and insights. The paper is drawn from two broad programs of empirical study conducted over three years in UK and Korea, respectively. The article is structured in three parts: first, a brief overview of policy, legislative, and accreditation frameworks that exist to govern medical tourist flows. Second, we present evidence around flows, demographics, treatment, and medical tourism for Korea and UK (both for supply and demand). Third, we examine conceptual and theoretical implications of this evidence. We argue that viewing medical tourism as a global market is problematic; some medical tourist markets are best viewed as networks with long-term exchange relationships; some specific areas of activity do function more strongly as price-related; decision making around medical tourism frequently involves a range of information and social networks (economic action as embedded social structure); and medical tourism is a function of globalization.     

Pragmatism and the study of large-scale social phenomena

Pragmatism has recently gained ground as a theoretical perspective in sociology. The approach is not without its critics, however. One common charge is that pragmatism is oriented toward the micro and not well suited for the explanation of meso- or macro-level events, processes, or outcomes. In this paper—a review essay—I consider whether the charge has merit. I examine four studies that draw heavily on pragmatism and give some indication of its explanatory potential. Taken together, these studies suggest that pragmatism has much to offer analysts of large-scale social phenomena. At the same time, key issues remain to be worked out.     

Raising charitable children: the effects of verbal socialization and role-modeling on children’s giving

This paper uses nationally-representative data from the PSID and CDS to estimate the causal effects of two parent socialization actions—talking to children about giving and role-modeling—on children’s decisions whether or not to give to charity. We develop an identification framework based on the intra-household allocation and cultural transmission literatures that shows how different assumptions about parental response to time-varying unobserved changes in children’s prosocial values can be combined with the child fixed effects estimate and the difference between siblings’ over-time-differences estimate to infer a bound on the causal effect of parental action to socialize their children. Under the identifying assumption we think is most reasonable for socializing the willingness to give to charity, that parents treat the socialization actions of others as cultural substitutes, our estimates imply that talking to children about giving raises the probability of children’s giving by at least .13. We find no evidence that parental role-modeling affects children’s giving, except among non-African-American girls. The identification framework and substantive results have implications for those with a general interest in using data from naturalistic settings to estimate causal effects of parental socialization actions, those interested in the external validity of laboratory findings, and those interested in the socialization of warm glow.