Modelling the evolution of a bipartite network—Peer referral in interlocking directorates

A central part of relational ties between social actors is constituted by shared affiliations and events. The action of joint participation reinforces personal ties between social actors as well as mutually shared values and norms that in turn perpetuate the patterns of social action that define groups. Therefore the study of bipartite networks is central to social science. Furthermore, the dynamics of these processes suggests that bipartite networks should not be considered static structures but rather be studied over time. In order to model the evolution of bipartite networks empirically we introduce a class of models and a Bayesian inference scheme that extends previous stochastic actor-oriented models for unimodal graphs. Contemporary research on interlocking directorates provides an area of research in which it seems reasonable to apply the model. Specifically, we address the question of how tie formation, i.e. director recruitment, contributes to the structural properties of the interlocking directorate network. For boards of directors on the Stockholm stock exchange we propose that a prolific mechanism in tie formation is that of peer referral. The results indicate that such a mechanism is present, generating multiple interlocks between boards.     

Parental Divorce and Offspring Depressive Symptoms: Dutch Developmental Trends During Early Adolescence

In this study, we investigated if the association between parental divorce and depressive symptoms changes during early adolescence and if developmental patterns are similar for boys and girls. Data were collected in a prospective population cohort of Dutch adolescents (N = 2,149), aged 10 – 15 years. Outcome variables were self‐reported and parent‐reported depressive symptoms. The effects of divorce were adjusted for parental depression. In both self‐reported and parent‐reported data, we found a three‐way interaction of gender, age, and parental divorce, indicating that with increasing age, parental divorce became more strongly associated with depressive symptoms among girls, but not boys. These results suggest that girls with divorced parents are at particularly high risk to develop depressive symptoms during adolescence.     

Reinterpreting between-group inequality

We evaluate observed inequality between population groups against a benchmark of the maximum between-group inequality attainable given the number and relative sizes of those groups under examination. Because our measure is normalized by these parameters, drawing comparisons across different settings is less problematic than with conventional inequality decompositions. Moreover, our measure can decline with finer sub-partitioning of population groups. Consequently, the exact manner in which one groups the population acquires greater significance. Survey data from various countries suggest that our approach can provide a complementary perspective on the question of whether (and how much) a particular population breakdown is salient to an assessment of inequality in a country. An erratum to this article can be found at     

Foster care assessment: an exploratory study of the placement assessment process in Flanders and the Netherlands

Family foster care placement decision‐making has a weak scientific underpinning. The identification of clusters of foster children (groups of foster children with similar characteristics) can help improve decision quality. In this study, we investigated if foster children could indeed be clustered, which problems were identified at the time of placement and what might be the influence of placement history. Two clusters of foster children were found: (i) young children with coinciding parental child‐rearing incapacity and familial problems, and (ii) older children with child problems. At the time of placement, familial problems were more often identified in younger children with a placement history. These findings stress the importance of approaching foster care assessment as part of a dynamic decision‐making process. It is key to finding the most appropriate situation for the child. At the same time, it must be decided how the desired situation can be realized, wherein placement decisions are based on an appraisal of whether or not a foster placement is an appropriate solution. In conjunction with this, it needs to be decided how the parents can be supported towards reunification, or whether or not long‐term foster care is the best option for the child, and if so what conditions need to be met.     

Nationalist Reframing of the Finnish and Swedish Welfare States – The Nexus of Nationalism and Social Policy in Far‐right Populist Parties

The rise of right‐wing populist parties in the Nordic countries is slowly redefining the Nordic social democratic discourse of the universal and egalitarian welfare state. The nexus of nationalism and social policy has been explored in regions and countries such as Quebec, Scotland, Belgium and the UK, but the change of discourse in the Nordic countries has received less attention. Taking the case of Sweden and Finland, this article argues that Nordic populism does not question the redistributive welfare state per se as many other European neo‐liberal far‐right parties have done. Instead, it reframes the welfare state as being linked to a sovereign and exclusive Swedish and Finnish political community with distinct national boundaries. Although Sweden and Finland largely share a common welfare nation state discourse, the article also points to important differences in the way this discourse is able to frame the welfare nation state where access to, and the design of, social services are no longer universal and egalitarian but based around ethnicity. The article aims to demonstrate this through an analysis of the welfare discourses of two populist parties: Sweden Democrats and True Finns.     

Maybe It Is Time to Rediscover Bureaucracy

This article questions the fashionable ideas that bureaucraticorganization is an obsolescent, undesirable, and non-viableform of administration and that there is an inevitable and irreversibleparadigmatic shift towards market- or network-organization.In contrast, the paper argues that contemporary democraciesare involved in another round in a perennial debate and ideologicalstruggle over what are desirable forms of administration andgovernment: that is, a struggle over institutional identitiesand institutional balances. The argument is not that bureaucraticorganization is a panacea and the answer to all challenges ofpublic administration. Rather, bureaucratic organization ispart of a repertoire of overlapping, supplementary, and competingforms coexisting in contemporary democracies, and so are market-organizationand network-organization. Rediscovering Weber's analysis ofbureaucratic organization, then, enriches our understandingof public administration. This is in particular true when we(a) include bureaucracy as an institution, not only an instrument;(b) look at the empirical studies in their time and context,not only at Weber's ideal-types and predictions; and (c) takeinto account the political and normative order bureaucracy ispart of, not only the internal characteristics of "the bureau."     

Kernel Density Estimator From Ranked Set Samples

We study kernel density estimator from the ranked set samples (RSS). In the kernel density estimator, the selection of the bandwidth gives strong influence on the resulting estimate. In this article, we consider several different choices of the bandwidth and compare their asymptotic mean integrated square errors (MISE). We also propose a plug-in estimator of the bandwidth to minimize the asymptotic MISE. We numerically compare the MISE of the proposed kernel estimator (having the plug-in bandwidth estimator) to its simple random sampling counterpart. We further propose two estimators for a symmetric distribution, and show that they outperform in MISE all other estimators not considering symmetry. We finally apply the methods in this article to analyzing the tree height data from Platt et al. (1988 Platt, W.J., Evans, G.M., Rathbun, S.L. (1988). The population dynamics of long-lived conifer (Pinus plaustris) (1988). Amer. Natrualist 131:491–525.[Crossref], [Web of Science ®] , [Google Scholar]) and Chen et al. (2003 Chen, Z., Bai, Z., Sinha, B.K. (2003). Ranked Set Sampling: Theory and Applications. New York: Springer. [Google Scholar]).     

Distinction making and pattern recognition in management

The ability to make new distinctions in management, and to diffuse these rapidly throughout a company into shared practices, will be a corporate strategic advantage in the future. Johan Roos justifies this view on the grounds that knowledge development provides the foundation for distinction making, and it is the management of this knowledge that provides the driver.The author argues it is the process of distinction making which is a conscious managerial process. He first discusses the art of making distinctions in general, and then focuses on a particular form of distinction making: pattern recognition. He concludes with three managerial actions that can be taken to enhance the pattern recognition capability of an organisation.