Using informative priors for handling missing data problem in Cox regression

The aim of this study is to determine the effect of informative priors for variables with missing value and to compare Bayesian Cox regression and Cox regression analysis. For this purpose, firstly simulated data sets with different sample size within different missing rate were generated and each of data sets were analysed by Cox regression and Bayesian Cox regression with informative prior. Secondly lung cancer data set as real data set was used for analysis. Consequently, using informative priors for variables with missing value solved the missing data problem.     

Financial hardship assistance behind the scenes: Insights from financial counsellors

Financial hardship, in a credit society such as Australia, can affect almost anyone. To protect consumers from the negative impacts of financial hardship—which can include the stresses of enforcement action and disconnection from essential services—legal protections have been incorporated into the regulatory frameworks for the consumer credit, energy, water and telecommunications sectors. In this article, we outline the findings of our study, which used a survey of financial counsellors around Australia and focus group interviews with Victorian financial counsellors to examine how these legal protections are being implemented by service providers in these four sectors. Our findings highlight a tendency on the part of service providers to take a generic, one‐size‐fits‐all approach to compliance with these legal protections that prevents them from effectively assisting consumers struggling with debt. We discuss the particular shortcomings of this approach in the context of consumers living on low incomes—especially Centrelink incomes—and outline the policy implications of our findings for assisting these vulnerable groups.     

Governance Reforms: the Good,the Bad,and the Ugly; and the Sound: Examining the Past and Exploring the Future of Public Organizations

This paper addresses governance reforms of the last three and a half decades and looks into the future. This is done in three parts. The first part presents a birds-eye view of the massive literature on governance and governance reforms with a focus on the good, the bad, and ugly sides, then in part two argues for an alternative concept or theory of “sound governance” with characteristics and dimensions that overcome the deficiencies of other models of governance. As a consequence of reforms, the third part examines the past and explores the future of public organizations via “going home” as a conclusion with possible scenarios, challenges, and opportunities.     

Individual differences as antecedents of leader behavior: Towards an understanding of multi-level outcomes

The leadership research on individual differences is going through a period of revival. However, due to the substantial number of variables in this area and the different knowledge bases they are associated with (e.g., psychology, endocrinology, genetics), the literature is also becoming highly fragmented as it grows. This fragmentation is preventing different literature streams from effectively communicating with each other and synthesizing the rapidly expanding body of knowledge. Consequently, the continued growth of the individual differences literature is at risk. Therefore, we believe that classifying the relevant literature streams and reviewing the key variables in those streams will be beneficial. We do so by organizing this review and research agenda of the leadership literature on individual differences around the recent model developed by Antonakis, Day, and Schyns (2012). In doing so, we hope to unify some of the future research efforts around a recent and recognized conceptual model, and in turn facilitate communication between these different streams of literature. Moreover, insights from this literature also allow us to propose additions and refinements to the model of Antonakis, Day, and Schyns (2012) that may help scholars by indicating other fruitful areas for future research on individual differences.     

The cultural-economic model and public relations in the Middle East: An examination of the Islamic banking system in Kuwait

This article adopts the cultural-economic model of public relations practice to analyze the communications through the websites of three prominent Islamic banks in Kuwait. The analysis extrapolates Islamic value orientations including respect for religious authority, affinity with the past, fatalism, communal kinship, attachment to the eternal life and spirituality and idealism. The orientations are then examined relative to public relations practice in the Middle East. The study advances the understanding of Islam and public relations in the Middle East, an understudied region in public relations literature, and illuminates the relationship between religion and public relations. It concludes with observations to guide public relations projects directed toward Muslims in the Middle East for professionals and scholars.     

A response to criticism of our estimates of under-5 mortality in Iraq, 1980-98

According to estimates published in this journal, the number of deaths of children under 5 in Iraq in the period 1991-98 resulting from the Gulf War of 1991 and the subsequent imposition of sanctions by the United Nations was between 400,000 and 500,000. These estimates have since been held to be implausibly high by a working group set up by an Independent Inquiry Committee appointed by the United Nations Secretary-General. We believe the working group's own estimates are seriously flawed and cannot be regarded as a credible challenge to our own. To obtain their estimates, they reject as unreliable the evidence of the 1999 Iraq Child and Maternal Mortality Survey--despite clear evidence of its internal coherence and supporting evidence from another, independent survey. They prefer to rely on the 1987 and 1997 censuses and on data obtained in a format that had elsewhere been rejected as unreliable 30 years earlier.     

Distributionally robust maximum probability shortest path problem

In this study, we discuss and develop a distributionally robust joint chance-constrained optimization model and apply it for the shortest path problem under resource uncertainty. In sch a case, robust chance constraints are approximated by constraints that can be reformulated using convex programming. Since the issue we are discussing here is of the multi-resource type, the resource related to cost is deterministic; however, we consider a robust set for other resources where covariance and mean are known. Thus, the chance-constrained problem can be expressed in terms of a cone constraint. In addition, since our problem is joint chance-constrained optimization, we can use Bonferroni approximation to divide the problem into L separate problems in order to build convex approximations of distributionally robust joint chance constraints. Finally, numerical results are presented to illustrate the rigidity of the bounds and the value of the distributionally robust approach.

     

Dwelling in epistemic disobedience: A reply to Go

In Thinking Against Empire: Anticolonial Thought as Social Theory, Julian Go continues his vital work on rethinking and redirecting the discipline of sociology. Go’s piece relates to his wider oeuvre of postcolonial sociology – found in works such as his Postcolonial Thought and Social Theory (2016) as well as multiple journal articles on epistemic exclusion (Go 2020), Southern theory (Go 2016), metrocentrism (Go 2014), and the history of sociology (Go 2009). In this response article, my aim is to think alongside some of the central themes outlined in Go’s paper rather than offering a rebuttal of any sorts. In particular, I want to think through how the recent work on ‘decoloniality’ may play more of a central role in Go’s vision of sociology and social theory than he acknowledges. In doing so, I hope to engage in Go’s prodigious scholarship through centering discussions of the geopolitics of knowledge, double translation, and border thinking. Before proceeding to this discussion, I will offer a brief review of my reading of Go’s paper.