At the Nexus of Observational and Experimental Research: Theory,Specification, and Analysis of Experiments with Heterogeneous Treatment Effects

Experimentalists are increasingly examining heterogeneous treatment effects, in which observed individual-level characteristics are hypothesized to moderate an experimental treatment effect. Such work places researchers at the nexus of experimental and observational approaches. In this paper, we discuss the theoretical and statistical issues that can arise in testing such hypotheses. We note that inclusion of an observed (as opposed to randomly-assigned) moderator introduces the possibility of confounds that are commonplace in observational data analysis but too-easily ignored in experimental data analysis. We simulate several different data generating processes that include heterogeneous treatment effects, and we discuss the implications of various statistical models. We aim to provide researchers who examine heterogeneous treatment effects with background and advice that enable them to identify where common issues may arise and to develop research designs and implement statistical tests that will mitigate them.     

Shaping the Evolution of the Information Flow: The Centralizing Mechanisms in the Evolution of the North American Tobacco Quitline Consortium

The research reported here is an analysis of the evolution of the relationships that comprise a single public health network, focusing especially on the position of the network administrative organization (Provan and Kenis 2008 Provan, K. G. and P. Kenis. 2008. “Modes of Network Governance: Structure, Management, and Effectiveness.” Journal of Public Administration Research and Theory 18(2): 229–252.[Crossref], [Web of Science ®] , [Google Scholar]) in the flow of knowledge among a large number of organizations providing similar services. Our study examines the North American Quitline Consortium (NAQC), a multi-sector network that spans the US and Canada and whose members provide telephone-based tobacco cessation services to anyone interested in quitting smoking. Data were collected using web-based surveys at three different points of time. Implications are discussed for network organizing, for both theory and practice, focusing especially on the importance of the network administrative organization in shaping the evolution of the whole network information flow.     

Military Power and Food Security: A Cross-National Analysis of Less-Developed Countries, 1970–1990

Addressing the long-standing debate over the social impact of military power and recent discussions of military-induced famine, we conduct a panel analysis of aggregate food supply and child hunger rates in 75–79 less-developed countries (LDCs). Distinguishing between militarization , as the growth of military resources, and militarism , as the use of military force to handle political conflicts, we show that militarization is both beneficial and detrimental to food security, whereas militarism is consistently detrimental. Arms imports and associated increased military spending plus praetorianism and military repression reduce food security, whereas increased military participation and arms production boost food security. Increased food supply reduces child hunger and is largely confined to the more developed of the LDCs. These military power effects show net economic growth, which "trickles down" to improve food supply and reduce child hunger among the more developed LDCs, reflecting the growth of global economic inequality. Contrary to views that see militarization as a single unified process, use of armed force is not strongly rooted in either praetorianism or militarization.     

Resistance and Creativity in Social Interaction: For and Against Memory in Poland, Israel–Palestine, and the United States

In this paper, I present an analysis of Adam Michnik’s notion of “Amnesty without Amnesia”. His was a wise political judgment presented at a critical moment in the struggle to constitute a democratic polity in Poland. Mine is an appreciation of his political position, along with a sociological analysis that highlights the empirical difficulties of its realization in practical action. I will show how at critical moments of social change creative political action works to erase memories of the relevant past, which act as a repressive force, while “re-remembering” (to use Toni Morrison’s formulation). Three cases will be compared, Michnik’s, after the fall of the communist regime in east central Europe, and cases drawn from the Palestinian–Israeli conflict and the American presidential campaign. A paper prepared for presentation at Cerisy, France, Summer, 2008.     

美国未成年人司法制度的发展

本文旨在介绍美国的未成年人司法制度。文中除了介绍其不同于成年人的司法制度之处以外,还特别介绍此制度近期的发展,着重于停止按未成年人司法程序审判(移交成年人法庭)、校园暴力、未成年人团伙及“三击不中”政策等。     

Autopsy findings in the eyes of fourteen fatally abused children

The eyes of fourteen fatally abused children and sixteen control cases were examined histopathologically. Ten of the abused children showed intraocular change. The most common ocular changes were subdural hemorrhage of the optic nerve and retinal hemorrhage which involved all the layers of the retina, but most commonly the nerve fiber layer, ganglion cell layer and inner nuclear layer. The presence of blood cavities within the retina partially supported the hypothesis of traumatic retinoschisis. The control cases of non-abused children rarely showed intraocular hemorrhage.     

Self-rated health and barriers to healthcare in Ukraine: The pivotal role of gender and its intersections

The ongoing health crisis in the Ukraine has persisted for 48 years with a clear division of gender-based outcomes as seen in the decline of male life expectancy and stagnation of female longevity. The purpose of this paper is to investigate differences in self-rated health and system barriers to health care applicable to gender and its intersections because of the differing negative health outcomes for men and women. Intersectionality theory provides an analytic framework for interpreting our results. Utilizing a nationwide sample of the Ukrainian population (N = 1908), we found that low socioeconomic status (SES) women rate their health worse than men generally and any other socioeconomic group. Yet women also face the greatest barriers to health care until older ages when the ailments of men cause them to likewise face the obstacles. In reviewing the barrier to health care scale, one barrier—that of health care services being too expensive—dominated the responses with some 52.5 percent of the sample reporting it. Consequently, the greatest problem in Ukraine with respect to health reform reported by the population is the out-of-pocket costs for care in a system that is officially free. These costs, constituting some 40 percent of all national health expenditures, affect women and the aged the most.