Coalitional strategy-proof and resource-monotonic solutions for multiple assignment problems

We consider the problem of allocating indivisible objects when agents may desire to consume more than one object and monetary transfers are not possible. Each agent receives a set of objects and free disposal is allowed. We are interested in allocation rules that satisfy appealing properties from an economic and social point of view. Our main result shows that sequential dictatorships are the only efficient and coalitional strategy-proof solutions to the multiple assignment problem. Adding resource-monotonicity narrows this class down to serial dictatorships.We thank Francois Maniquet, two anonymous referees, and the participants of the GREBE-FRANCQUI Summer School on Axiomatic Resource Allocation Theory, held in Namur, Belgium, for their comments.     

Living same-name siblings and British historical demography

This article examines the extent to which living siblings were given identical first names. Whilst the practice of sibling name-sharing appeared to have died out in England during the eighteenth century, in northern Scotland it persisted at least until the end of the nineteenth century. Previously it has not been possible to provide quantitative evidence of this phenomenon, but an analysis of the rich census and vital registration data for the Isle of Skye reveals that this practice was widespread, with over a third of eligible families recording same-name siblings. Our results suggest that further research should focus on regional variations in sibling name-sharing and the extent to which this northern pattern occurred in other parts of Britain.     

What's the problem? A problem-based approach to the reform of the Norwegian drug rehabilitation sector

This article explores how the scope of solutions to complex problems is determined by the way in which the problem is formulated. We inquire into this by means of a theory-driven case study of the reform in the Norwegian drug rehabilitation sector and the Tyrili facility. We analyze divergent approaches to drug rehabilitation by means of a problem formulation framework, which distinguishes between (1) the value dimensions of given problems, and (2) the phases of problem solving activities. Based on this inquiry, we arrive at a set of propositions, in which we propose that the two approaches differ in their inclusion of various value dimensions. Moreover, we suggest that the reform pursued increased efficiency as a solution to a reductionist formulation of the problem, which challenged Tyrili's opportunity to solve the problem in the multidimensional manner they conceive of it. This is an argument against a one-dimensional maximization of efficiency as a pursuit of quality in social services.     

The Effects of Ethnic Minority Adolescents' Ethnic Self‐Identification on Friendship Selection

This study investigated the effects of ethnic minority adolescents' ethnic self‐identification (host country, dual, or heritage country) on friendship choices among ethnic majority and minority peers. Hypotheses were derived from similarity–attraction and social identity theory and tested using longitudinal social network data from 1,004 middle school students (five schools) in Germany. Results showed that ethnic minority adolescents' ethnic self‐identification affected friendship selection beyond ethnic homophily. While host country and dual identification was beneficial with respect to friendships with both ethnic majority and minority peers, heritage country identification was detrimental to relations with both of them.     

The Probabilistic Final Standing Calculator: a fair stochastic tool to handle abruptly stopped football seasons

AStA Advances in Statistical Analysis - The COVID-19 pandemic has left its marks in the sports world, forcing the full stop of all sports-related activities in the first half of 2020. Football...     

Fathers' employment in a father-friendly welfare state: does fatherhood affect men's working hours?

An important aim of Norwegian work–family policies is to enhance the family role of fathers. Time-use surveys show a slight increase in fathers’ family work, but we still know little about the relationship between men's family circumstances and working hours. On the one hand, policy measures encourage the greater involvement of fathers in family life. On the other hand, men are the main providers in most couples and employment and breadwinning are still important components of men's fathering identity. In this paper, we examine the relationship between fatherhood and working time, with a particular focus on the possible effects of the number and ages of children. Utilizing the Norwegian Labour Force Survey 2005, we find that men's contractual working hours are not significantly affected by their parental status, but men do curtail their actual working hours when they have young children, and particularly if there is only one child in the household. However, men with school-aged children actually work longer hours than non-fathers and men with young children.     

The pressure for growth as an organizational problem

A basic argument of this paper is that organizations are under pressure to increase their revenues because of rising aspirations of those who provide goods and services to the organization. The paper then presents an analytical tool which can be used to identify different strategic alternatives for handling the described situation. These alternatives can be classified into three main categories: customer oriented, technology oriented and provider oriented strategies. The application of the method is illustrated by an application to the situation of the newspaper industry.     

Warum Kunden in Online-Communities innovieren: Ergebnisse einer Motivanalyse

For companies, online communities (OCs) have become a potent means of rapidly and easily identifying user needs as a result of the social and technological changes within the Web 2.0. Some OCs even are suited ideally for integration into NPD as they frequently have innovative members. Despite their growing relevance, however, user innovation activities within OCs still are underexplored. The members’ motivations to innovate and contribute to OCs in particular are part of a young line of research requiring further investigation. This research provides an in-depth netnographic analysis of innovative, privately operated OCs dedicated to tangible consumer products. Most fundamentally, we differentiate 1) motives to join OCs, 2) motives to innovate, and 3) motives to publish innovations in OCs. This is the first study to categorize the motives of innovative OC members depending on the stages of their membership as well as situational factors. Our results support companies in understanding and classifying the members’ motives in independent customer OCs. This is a precondition for the development of specific incentives that stimulate innovative user activities in OCs and contribute to customer integration.     

Inter-generational effects of disability benefits: evidence from Canadian social assistance programs

Individuals with disabilities face greater challenges in the labor market than able-bodied individuals, and a growing body of research is finding that their children also tend to have more developmental problems than the children of able-bodied parents. Can transfer payments help reduce this gap? In this paper, we present the first evidence on how parental disability benefits affect the well-being of children. Using changes in real benefits under ten disability benefit programs in Canada as an identification strategy and Statistics Canada’s National Longitudinal Survey of Children and Youth (NLSCY) as the data source on child outcomes, we find strong evidence that higher benefits lead to improvements in children’s cognitive and non-cognitive development, as measured by math scores in standardized tests, hyperactive symptoms, and emotional anxiety behavior. The effect is larger on children with a disabled mother than on those with a disabled father.