Reelection threshold contracts in politics

We propose to supplement the democratic election mechanism by threshold contracts. A threshold contract stipulates a performance level that a politician must reach in order to obtain the right to stand for reelection. “Read my lips” turns into “read my contract”. Politicians can offer threshold contracts during their campaigns. Equilibrium threshold contracts are welfare improving and do not violate the liberal principle of free and anonymous elections in democracies. We would like to thank Johannes Becker, Peter Bernholz, Robert Dur, Joao E. Gata, Volker Hahn, Susanne Lohmann, Christian Schultz, Otto H. Swank, Heinrich Ursprung, conference participants at the annual meeting of the Public Choice Society 2000, the European meeting of the Econometric Society 2001 and the annual congress of the European Economic Association 2001 in Lausanne, seminar participants in Heidelberg and Mannheim and the referee for valuable suggestions and comments. Financial support from the Deutsche Forschungsgemeinschaft (DFG) is gratefully acknowledged.     

Modelling over- and underdispersed frequencies of successful ink transmissions onto paper

This work focuses on the statistical modelling of successful or failed ink transmission during the printing of packaging paper. The main aim is to explain the probability of successful ink transmission with the help of a regression model. But many of the applied logistic regression models show that the variabilities of various samples from the printability data set range from much smaller to much larger values than the variability assumed in a binomial model. Hence, the main part of this paper concentrates on the discussion of distribution families that are capable of handling such a wide spectrum of different variations of frequency data.     

Lessons Learned From a Canadian Province-Wide Age-Friendly Initiative: The Age-Friendly Manitoba Initiative

The Age-Friendly Manitoba Initiative was launched in 2008. A formative evaluation we conducted in 2011 with 44 participating rural and urban communities demonstrates considerable progress, with virtually all communities having formed an Age-Friendly Committee and conducting a community assessment to identify priorities for action. The majority of communities implemented one or more age-friendly projects. Major barriers to becoming age-friendly identified by participants included lack of funding; lack of capacity, particularly in small communities; and lack of leadership or direction. The study highlights the importance of strong leadership at all levels of government (municipal, provincial, federal); the need to support communities, particularly rural ones, as they try to become more age-friendly; and the importance of ongoing promotion of age-friendliness locally and more broadly (e.g., provincially).     

Effects of Classroom Composition on the Development of Antisocial Behavior in Lower Secondary School

Early adolescence is a critical period during which classroom composition may affect behavioral development. This study investigated whether classmates’ levels of aggression and delinquency influenced individual antisocial behavior during the first year of secondary school. At this point, students had just transitioned to a new classroom peer environment. A short‐term longitudinal design with four measurement points distributed across the school year was applied. Data were collected from the anonymous self‐reports of 825 seventh graders. Longitudinal negative binomial multilevel analyses revealed that classmates’ antisocial behavior influenced pupils’ behavioral development (other peer influences were controlled). Furthermore, classroom behavioral heterogeneity moderated the peer effect regarding delinquency but not aggression.     

Child protection and out-of-home placement experiences of preschool children born to mothers enrolled in methadone maintenance treatment during pregnancy

Children born to opiate-dependent women engaged in methadone maintenance treatment are at high risk of child welfare concern. However, few studies have examined the early child protection service (CPS) contacts of this group or the risk factors that place some but not other mother–infant dyads at increased risk of serious concern resulting in the removal of the child from the family home. As part of a prospective longitudinal study based in New Zealand, 73 women enrolled in methadone maintenance treatment during pregnancy and 54 non-methadone maintained comparison mothers were recruited during pregnancy and interviewed close to delivery, 18-months and 4.5-years. At each follow-up evaluation, detailed life history methods were used to describe children's family circumstances and all CPS contacts. By 4.5-years postdelivery, methadone maintained mothers were ten-times more likely to have been investigated by child protection services than comparison mothers (59% v. 6%, p < .001). Of these contacts, almost half (44%) resulted in the removal of the child from the family home compared to no comparison children (p < .001). These children were most frequently placed before age 1, with an average of 1–2 caregiver changes (range: 0–7). In addition to maternal methadone maintenance treatment during pregnancy (p < .001), significant independent predictors of child out-of-home placement included maternal depression (p = .01), maternal history of child custody loss (p = .02), and to some extent, high levels of family socioeconomic adversity (p = .06). Findings highlight the complex psychosocial needs of this high-risk group, as well as the need for careful monitoring and parenting support following hospital discharge.     

Der Entwicklungsraum als Ort professioneller Gestaltung im Coaching – Stabilisierung und Destabilisierung als Elemente eines nachhaltigen Veränderungsprozesses

The following contribution is preoccupied with the question of, what conditions, for example what framework is necessary, in order to coach clients in a skilled and sustainable manner – sustainable in the sense of aware, balanced ,and very important long-lasting – supportive to development. Coaching in the following will not be considered as an attempt to optimize achievement or viewed as an instrument towards the short termed attainment of goals, but on the contrary as a process of development , which swings between the stabilization and the destabilization of the client. In this article we will consider the level of the settings and the interventions.     

A smooth dynamic network model for patent collaboration data

AStA Advances in Statistical Analysis - The development and application of models, which take the evolution of network dynamics into account, are receiving increasing attention. We contribute to...