Dependence and uncertainty in broker strategies of research intermediaries

This study examines how a research intermediary can successfully manage collaboration among research partners, while mitigating resource dependence in multi-partner programs. For that purpose, two fundamentally different strategies are explored: tertius gaudens and tertius iungens. Previous literature has not addressed the possibility that the effective deployment of tertius broker strategies may be contingent on multiple factors. Using a qualitative in-depth case study, we contribute to the literature by showing that the effective development of the tertius broker strategies in our study context is contingent on partner type, business integration and product readiness.     

THE END OF THE ART CONNOISSEUR? EXPERTS AND KNOWLEDGE PRODUCTION IN THE VISUAL ARTS IN THE DIGITAL AGE

In this digital age, declarations surface of the death of the expert and the democratization of information. Crowd wisdom is seen as the new guide in constructing and evaluating knowledge. In the context of the art world, this tension between the amateurs and the experts becomes particularly pronounced as popular meets high culture. Questions arise such as: what is the role of the expert in the evaluation of art in contemporary times? Do social media dismantle age-old hierarchies and established priesthoods in the art world? And can we assume that mass participation in valuation results in better judgments? This article addresses such popular notions of participation and expertise concerning social media in the art world through a historical lens by re-examining and positioning art experts from past to present. Particularly, characteristics of intermediaries in the art market are examined closely regarding their strategies in knowledge production and the establishment of expertise. This historical situatedness enables us to move beyond the hype of new media expectations, generating more appropriate avenues of investigation to better grasp possible changes amongst actors within the contemporary art world. This examination is not just theoretically relevant but practically so, given current pressures on art institutions to embrace and reach out to new audiences online.     

Effects of ground surface permeability on the growth of urban linden trees

Street trees are an important part of urban vegetation due to their provisioning of different types of ecosystem services such as local climate regulation and contribution to aesthetical and recreational values. In order to provide these services, urban trees need to endure many stress factors not present in natural environments, such as the widespread use of impervious surfaces in the vicinity of street trees. However, few studies have evaluated the effect of this potential stress factor on urban tree growth. The aim of this study was therefore to investigate how ground surface permeability affects stem and current-year shoot growth of linden (Tilia europaea) street trees in Gothenburg, Sweden. We found that a small fraction of permeable ground surface in the vertically projected tree crown area caused lower stem growth and strongly suppressed current-year shoot growth. This finding can guide future city planning, demonstrating that the vitality of street trees is compromised when the permeable surface area in the vicinity of the tree is small.     

Leadership as social identity management: Introducing the Identity Leadership Inventory (ILI) to assess and validate a four-dimensional model

Although nearly two decades of research have provided support for the social identity approach to leadership, most previous work has focused on leaders' identity prototypicality while neglecting the assessment of other equally important dimensions of social identity management. However, recent theoretical developments have argued that in order to mobilize and direct followers' energies, leaders need not only to ‘be one of us’ (identity prototypicality), but also to ‘do it for us’ (identity advancement), to ‘craft a sense of us’ (identity entrepreneurship), and to ‘embed a sense of us’ (identity impresarioship). In the present research we develop and validate an Identity Leadership Inventory (ILI) that assesses these dimensions in different contexts and with diverse samples from the US, China, and Belgium. Study 1 demonstrates that the scale has content validity such that the items meaningfully differentiate between the four dimensions. Studies 2, 3, and 4 provide evidence for the scale's construct validity (distinguishing between dimensions), discriminant validity (distinguishing identity leadership from authentic leadership, leaders' charisma, and perceived leader quality), and criterion validity (relating the ILI to key leadership outcomes). We conclude that by assessing multiple facets of leaders' social identity management the ILI has significant utility for both theory and practice.     

The Multidimensional Efficiency of Pension System: Definition and Measurement in Cross-Country Studies

The existing literature on the efficiency of pension system, usually addresses the problem between the choice of different theoretical models, or concerns one or few empirical pension systems. In this paper quite different approach to the measurement of pension system efficiency is proposed. It is dedicated mainly to the cross-country studies of empirical pension systems, however it may be also employed to the analysis of a given pension system on the basis of time series. I identify four dimensions of pension system efficiency, referring to: GDP-distribution, adequacy of pension, influence on the labour market and administrative costs. Consequently, I propose four sets of static and one set of dynamic efficiency indicators. In the empirical part of the paper, I use Spearman’s rank correlation coefficient and cluster analysis to verify the proposed method on statistical data covering 28 European countries in years 2007–2011. I prove that the method works and enables some comparisons as well as clustering of analyzed pension systems. The study delivers also some interesting empirical findings. The main goal of pension systems seems to become poverty alleviation, since the efficiency of ensuring protection against poverty, as well as the efficiency of reducing poverty, is very resistant to the efficiency of GDP-distribution. The opposite situation characterizes the efficiency of consumption smoothing—this is generally sensitive to the efficiency of GDP-distribution, and its dynamics are sensitive to the dynamics of GDP-distribution efficiency. The results of the study indicate the Norwegian and the Icelandic pension systems to be the most efficient in the analyzed group.     

THE DETERMINANTS OF CAMPAIGN SPENDING: THE ROLE OF THE GOVERNMENT JACKPOT

To raise money for their campaigns, political candidates auction a part of government wealth (the jackpot) to contributors. The larger the jackpot, the more candidates spend. Data on the gubernatorial races of 1978 and 1986 indicate that (1) for every dollar increase in the per capita jackpot, campaign spending rises by 0.0004 cents per voter, (2) balanced budget laws hinder the candidate's ability to raise money, (3) in states that give the governor more power over the budget (measured by a "Schlesinger" index) candidates raise more. The paper emphasizes that candidates willingly limit their spending to avoid indebtedness to contributors.     

Understanding youth transition system in Poland through the analysis of partnerships between vocational upper secondary schools and industry

This paper examines the current youth transition system in Poland focusing on the role of industry partnerships with vocational upper secondary schools. On the example of the aviation cluster in the south-eastern Poland, this paper assesses the strong industry-led partnership established in 2007 with local schools and authorities in delivery of aviation-specific programmes, and its impact of local youth transitions to labour market. In contrast to Poland's national trend towards weak cooperation between industry and the vocational education sector, three major dynamics regarding the aviation cluster's influence on vocational education are observable. The region benefits from: strong leadership from local industry in influencing the supply of particular skills by local vocational education and training (VET) schools and universities; a high level of willingness of local government authorities at the mayor's and municipality's offices to support the aviation cluster's influence on VET; and a free-market model of student choice influencing the practice of local VET schools and training centres. Such cooperation is valuable for businesses and local institutes of education. However, these processes affect the equal chances of successful school-to-work transitions for graduates stratified in different educational pathways, and successful transitions are still constrained by the structure of Poland's system, which is increasingly assuming ‘education logic’.     

Similarity in friendship networks: Selection or influence? The effect of constraining contexts and non-visible individual attributes

Most research on similarity in friendship networks focuses on clearly visible individual attributes (i.e. attitudes and behaviors) in contexts where choices whom to befriend are relatively unconstrained. These studies often reveal that social selection rather than social influence is the dominant cause of similarity among friends. We argue that in a setting where social collaboration is crucial and friendship choices are more constrained, influence might be the main reason for similarity found among friends. In addition, we examined whether social categorization and peer control amplifies the social influence process among friends. Using a stochastic actor-based model for network dynamics, we analyzed a three-wave dataset of first year Royal Netherlands Naval College officer students on friendship formation and military discipline. The data supports our first hypothesis that students adjust their own military discipline to that of their friends. Contrary to our expectations, we did not find support for the idea that individuals adjust their discipline more to friends who are of the same military specialty, and neither more to friends who exert peer control. We elaborate on these findings in the discussion.