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The study aims to examine the impact of key variables on the success of solicited and unsolicited private participation in infrastructure (PPI) projects using machine learning techniques.

The data has information on 8,674 PPI projects primarily derived from the World Bank database. In the study, a machine learning framework has been used to highlight the variables important for solicited and unsolicited projects. The framework addresses the data-related challenges using imputation, oversampling and standardization techniques. Further, it uses Random forest, Artificial neural network and Logistics regression for classification and a group of diverse metrics for assessing the performances of these classifiers.

The results show that around half of the variables similarly impact both solicited and unsolicited projects. However, some other important variables, particularly, institutional factors, have different levels of impact on both projects, which have been previously ignored. This may explain the reason for higher failure rates of unsolicited projects.

This study provides specific inputs to investors, policymakers and practitioners related to the impacts of several variables on solicited and unsolicited projects separately, which will help them in project planning and implementation.

The study highlights the differential impact of variables for solicited and unsolicited projects, challenging the previously assumed uniformity of impact of the given set of variables including institutional factors.

Physicians' uniquely privileged social status gives them influence to help prevent conflict in addition to treating its victims. Yet the peacebuilding role of physicians has received little attention in medical education. In this paper, the authors tackle both and provide some concrete guidance to medical schools interested in taking it on.

Using Qualitative Description, a review of literature and expert interviews in violence prevention, peacebuilding, medicine and medical education, three statements are posited: improved healthcare may enhance the prospects for peace; there are mechanisms by which healthcare may potentially enhance peacebuilding; and medical education can be designed to support these mechanisms. A “peace audit” is developed against which to evaluate the efforts of medical schools towards peacebuilding. This audit is used to assess a medical school in Nepal that is invested in peacebuilding.

Medicine has a role, both in resolving conflict, and in preventing its occurrence. The experts believe that physicians have a responsibility to go further than treating the wounded and address the root cause of conflict: the structural violence of poverty and economic disparity.

This paper considers the mechanisms by which medicine supports peacebuilding, and the consequences of this for medical education. The literature to date has not dealt with this issue.

This paper begins by framing the concept of historical agency as a complex relationship between structural forces and individual actions. We then describe general features of historical fiction and consider ways of using this type of text in classrooms. Using the concept of historical agency, we examine three historical fiction texts for upper elementary or middle level readers (Roll of Thunder, Hear My Cry, The Fighting Ground, and Dragon's Gate). The analysis reveals the similarities and differences in the ways the authors construct historical agency. The paper concludes with a set of four key questions that teachers and students can apply to historical fiction to help students refigure the ways in which they construct knowledge about the past.

Wicked problems require holistic and systemic thinking that accommodates interdisciplinary solutions and cross-sectoral collaborations between private and public sectors. This paper explores how public relations (PR) – as a boundary-spanning function at the nexus of corporate and political discourse – can support societies to tackle wicked problems.

This conceptual paper synthesizes literature on PR with a service ecosystem perspective. The authors use the service ecosystem design framework to structure the PR literature and develop a model of service ecosystem shaping for social change, which highlights the important role that PR can play in shaping processes.

The authors explicate how PR can (1) facilitate value cocreation processes between broad sets of stakeholders that drive positive social change, (2) shape institutional arrangements in general and public discourse in particular, (3) provide a platform for recursive feedback loops of reflexivity and (re)formation that enables discourse to ripple through nested service ecosystems and (4) guide collective shaping efforts by bringing stakeholder concerns and beliefs into the open, which provides a foundation for collective sense-making of wicked problems and their solutions.

This paper explains the complexity of shaping service ecosystems for positive social change. Specifically, it highlights how solving wicked problems and driving social change requires reconfiguration of the institutional arrangements that guide various nested service ecosystems. The authors discuss in detail how PR can contribute to the shaping of service ecosystems for social change and present a future research agenda for both service and PR scholars to consider.