The ‘proper’ way to spread ideas through social media: exploring the affordances and constraints of different social media platforms as perceived by Italian activists

Social media have become a relevant arena for different forms of civic engagement and activism. This article focuses on the affordances and constraints of different social media platforms as they are perceived by Italian activists. Instead of focusing on single protest movements, or on single platforms, we adopt a media ecological approach and consider a variety of environments where people can choose to express protest‐related content. Our main goal is to explore whether, and how, the affordances and constraints of different social media platforms are perceived by users, and how such perceived differences are integrated in everyday social media activities. To this end, we combined in‐depth interviews with an adapted version of the cognitive walkthrough and thinking aloud techniques. Respondents reported that they act on social media platforms according to specific representations of what each platform ‘is’, and how it works. Such perceptions affect users’ protest‐related social media practices. Although they perceive major social media platforms filtering strategies and are aware, to different extents, of their commodified nature, they report continuing to use them for activism‐related communication, often adopting an instrumental approach.     

International venture capital research: From cross-country comparisons to crossing borders

Venture capital (VC) has become an international phenomenon, and VC firms are a specific kind of service firm whose characteristics have distinctive implications for international behaviour. There is now a disparate body of research on international aspects of VC across a number of disciplines comprising finance, economics, strategy, entrepreneurship, international business and economic geography. A novel aspect of this paper is that we review and synthesize this disparate literature. A number of research gaps and limitations in the theoretical and methodological approaches involved in previous studies are identified and suggestions made for further research. We show that the vast majority of the literature relates to cross-country comparisons; that is, macro-level comparisons of VC industries across different countries and micro-level comparisons of VC behaviour across countries. From our review of the literature, we argue that an under-researched area concerns the influence of institutional contexts, especially the role of social networks and cultures. Furthermore, our review of the literature indicates that there is a major research gap in relation to work dealing with the crossing of country borders by VC firms. We suggest that resource-based, capabilities, institutional and network theories may be offer insights to further our understanding of the behaviour of VC firms in this area.     

Leadership and institutional change in the public sector: The case of secondary schools in England

Leadership should be viewed as being embedded in a societal context and influenced by (as well as influencing) the institutional environment of organizations. Extant research on leadership, however, has largely neglected the effect of the institutional environment. To redress this imbalance we examine leadership in the context of institutional change in secondary school education in England. Specifically, we examine the co-existence of an emerging, government-prescribed, results-oriented approach to leadership (the new institution) with a more traditional professional value-based approach (the old institution). Our methodological approach utilized both quantitative and qualitative methods. The quantitative analysis suggests that there are no significant performance differences between the two leadership approaches. Furthermore, school context does not appear to influence the leadership style employed. The qualitative analysis enabled us to better interpret these findings and to examine the enactment of leadership. The analysis suggests that although the new regulatory environment has fostered the development of the results-oriented leadership, it has not fully replaced professional value-based leadership. Rather, we found pockets of resistance to the policy-prescribed approach precisely in those areas that were targeted by the policy, namely, in schools with high percentage of socially deprived students. We conclude that a complex relationship exists between leadership and its institutional context.     

The enactment of plural leadership in a health and social care network: The influence of institutional context

In this article we employ developments in social network analysis (SNA), specifically the p* model, to examine the enactment of plural leadership within, and across, hierarchical levels and organizational boundaries (Denis et al., 2012). Drawing on an empirical study of an inter-professional, inter-organizational network (number of nodes = 23) that delivers health and social care, we address two research gaps: (i) the effect of power relations, derived from professional hierarchy, upon spread of plural leadership; and (ii) the effect of formal leadership, derived from managerial accountability, in channeling the spread of plural leadership for coherent strategic effect. We show that, in a routine situation, the network is characterized by generalized leadership exchanges. In this situation, professional hierarchy and managerial accountability are not visible, nor is channeling of plural leadership by the formal leader. In a non-routine situation, when a disruptive event occurs, the network is characterized by restricted exchange. In this situation, professional hierarchy and managerial accountability are evident, and a formal leader channels plural leadership.     

Iraqi IDPs Access to Durable Solutions: Results of Two Rounds of a Longitudinal Study

This article discusses the findings from a 4,000 household, longitudinal study conducted by the International Organization for Migration (IOM) and Georgetown University. Using the Inter‐Agency Standing Committee (IASC) Framework on Durable Solutions, we investigate the circumstances in which households were displaced, and how their needs, strategies, and access to durable solutions change over time as they integrate, return, or settle elsewhere. Findings from the study thus allow us to build an evidence base that helps researchers and policymakers to move beyond conceptions of displacement as either a ‘crisis’ or a problem that has been solved, and instead bring into focus the ways in which displaced people find ways to rebuild their lives and livelihoods that coexist alongside patterns of mobility and risk management.     

Not all experiences of precarious work lead to precarity: the case study of young people at university and their welfare mixes

The concept of precarity has gained momentum and challenges social scientists to consider the effects of labour-market insecurity across classes and welfare arrangements. This article discusses the varieties of experiences of precarious work by young people in university and identifies in which cases they are also experiences precarity. It is one of the first studies of its kind to investigate the material triggers of inequality by comparing young people’s experiences across countries (England, Italy and Sweden) and by looking at the welfare mixes available to young people who are working at university. Through a comparative qualitative research involving young people from different socio-economic backgrounds and ‘welfare mixes’, the article shows that experiences of precarity concern a minority of young people who have an absolute necessity to rely on labour-market sources, due to the lack or insufficiency of state support and family sources. It also identifies: a group of young people who feel pressure to get precarious jobs to fill a decline in family resources; and a convenient use of precarious jobs suiting the circumstances of young people with abundant family resources. Overall, the research found that precarity is deeply connected to young people’s welfare mixes.     

Bayesian univariate space-time hierarchical model for mapping pollutant concentrations in the municipal area of Taranto

An analysis of air quality data is provided for the municipal area of Taranto (Italy) characterized by high environmental risks as decreed by the Italian government in the 1990s. In the context of an agreement between Dipartimento di Scienze Statistiche—Università degli Studi di Bari and the local regional environmental protection agency air quality, data were provided concerning six monitoring stations and covering years from 2005 to 2007. In this paper we analyze the daily concentrations of three pollutants highly relevant in such an industrial area, namely SO₂, NO₂ and PM₁₀, with the aim of reconstructing daily pollutants concentration surfaces for the town area. Taking into account the large amount of sparse missing data and the non normality affecting pollutants’ concentrations, we propose a full Bayesian separable space-time hierarchical model for each pollutant concentration series. The proposed model allows to embed missing data imputation and prediction of pollutant concentration. We critically discuss the results, highlighting advantages and disadvantages of the proposed methodology.     

The development of the resource-based view of the firm: A critical appraisal

Over the last 20 years, the resource-based view (RBV) has reached a pre-eminent position among theories in the field of strategy, but debate continues as to its precise nature. This paper contributes to the debate by critically reviewing the development of the RBV to date. The critical appraisal examines the development of the RBV in terms of theory, method, empirical evidence and practical insights. It is contended that the permeable and eclectic nature of the RBV stems from its being a theory about what firms are and how they function, and that its popularity is due to an absence of limiting behavioural assumptions. Finally, the authors provide their own subjective views on where they think RBV scholars should focus their efforts in the future.     

PORTFOLIO MODELING IN MULTIPLE-CRITERIA SITUATIONS UNDER UNCERTAINTY

There have been many models for portfolio selection, but most do not explicitly include uncertainty and multiple objectives. This paper presents an approach that includes these aspects using a form of stochastic integer programming with recourse. The method involves the use of a time-based decision tree structure called a “project tree.” Using this basic format, an illustrative six-project example is presented and analyzed. Various forms of objectives are discussed, ranging from the maximization of expected portfolio value to the maximization of the minimum weighted portfolio deviation from two goals. In each case, formulated numerical problems are given, and the solutions derived are presented. The approach is shown to be very flexible and capable of handling a variety of situations and objectives.