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Nonparametric predictive regression for stock return prediction
No full textAbstract.: We propose a multi-step nonparametric predictive regression model, which allows for general locally stationary predictors and time-varying/nonlinear return predictability. We propose a kernel estimation method and establish the large sample properties in both short and long horizons. We apply our method to stock return prediction using a number of standard predictors such as dividend yield. The empirical results show that our proposed model can outperform the historical mean benchmark, linear predictive regression model, and several machine learning methods for some cases in terms of out-of-sample forecasting performance. We also compare our method with the historical mean benchmark using an economic metric. In particular, we show how our methods could be used to deliver a trading strategy that beats the buy-and-hold strategy over our sample period.</p
Guiding principles for mixed methods research in software engineering
No full textMixed methods research is often used in software engineering, but researchers outside of the social or human sciences often lack experience when using these designs. This paper provides guiding principles and advice on how to design mixed method research, and to encourage the intentional, rigorous, and innovative application of mixed methods in software engineering. It also presents key properties of core mixed method research designs. Through a number of fictitious but recognizable software engineering research scenarios, we showcase how to choose suitable mixed method designs and consider the inevitable trade-offs any design choice leads to. We describe several antipatterns that illustrate what to avoid in mixed method research, and when mixed method research should be considered over other approaches.</p
A systematic review of TPACK research in primary mathematics education
No full textThis study is a systematic review of Technological Pedagogical and Content Knowledge (TPACK) studies concerning primary mathematics education published between 2005 and 2022. The aim of the systematic review was to identify the common features of previous TPACK research on primary mathematics education and identify the research gaps based on their contexts. The study used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) procedure to investigate TPACK-related studies published during the last 17 years in the primary mathematics education domain and to evaluate the characteristics of TPACK instruments used in primary mathematics education. We identified five foci of these studies of TPACK in primary mathematics education research: designing lessons, evaluating mathematics teachers’ knowledge of integrating digital technologies, designing the assessment, evaluating training programs, and informing professional development program designs. Findings from this systematic review of the literature can assist educators in better designing professional development programs to help primary mathematics teachers improve their ability to integrate digital technology into classroom teaching. Also, the findings can assist researchers in locating TPACK instruments that are appropriate and relevant for their research. Finally, we argue that there is a research gap concerning how to measure primary mathematics teachers’ TPACK, how to design a TPACK instrument that includes contextual factors, and how to develop TPACK-oriented teacher training programs for primary mathematics teachers.</p
Impact of relational norms on performance:interaction between solidarity, power and flexibility in buyer-supplier relationships
No full textBuyer-supplier relationships are characterised by relational norms. These norms are bilateral expectations that can reduce opportunistic behaviour, improve value creation and develop cooperation among exchange parties. Drawing on relational exchange theory, this study explores how three relational norms, solidarity, power and flexibility are interrelated in supply chain relationships. We test a mediated model where solidarity and power directly impact relational performance and flexibility mediates these relationships. The mediated model was tested with matched pairs of data on 93 supply chain arrangements between buyer and supplier organisations. Results show that solidarity improves relational performance both directly and in the presence of flexibility. Power, on the other hand, does not impact relational performance, both directly and through flexibility. The results obtained, especially the importance of flexibility and solidarity for both buyers’ and suppliers’ managers in maintaining long-term benefits in supply chain exchanges, are discussed for theory, practice and research.</p
Peace churches and restorative justice:Past, present, and future
No full textCriminologists have long recognised links between technologies of discipline and punishment, and religious doctrines and communities of faith. Taking up the challenge to include theology in interdisciplinary engagement, we use this article to invite secular scholars of restorative justice to engage with and attend to how theologians discuss criminological scholarship, including how it relates to restorative justice. This paper considers a small group of religious communities and these communities’ relationships to criminology and restorative justice. After identifying a set of ‘peace churches’, the paper reviews the historical links between these churches and movements for social and criminological reform, including restorative justice. While peace church communities have been discussed in histories of restorative justice, this article adds to those histories an explanation of how restorative justice is grounded in theological terms. By attending to contemporary discourse among theologians and leaders within peace church communities, the article sheds light on theological justifications for restorative justice and explores how that theology has developed in more recent years. This, we assert, provides context for why many theologians and leaders in peace church communities are involved with movements that challenge technologies of social control, specifically the defunding or abolition of police and abolition of prisons
“Differentiation is sometimes a hit and miss”. Educator perceptions of differentiated instruction in the higher education sector
No full textDifferentiated instruction is an effective means of addressing student diversity, and is increasingly being adopted by educators within the higher education sector. However, the global pandemic and changes to content delivery have altered the educational landscape. Hybridised delivery has resulted in the need for more innovative and contemporary means of accommodating student diversity, to suit both in-situ and remote learning platforms. Additionally, increasing student diversity in higher education has prompted a rethinking of how to accommodate student variance. This qualitative study sought to gauge the views of four educators, who were faced with hybridisation of content delivery during the global pandemic. Led by an overarching objective of ascertaining educator perceptions, responses and attitudes toward differentiated instruction, the study utilised four in-depth case studies to reflect on the implementation of differentiated instruction in the higher education sector. Results from this qualitative analysis yielded the view that time constraints, the coverage of prescribed content and increasing student diversity continue to act as barriers to authentic differentiation. While all showcased educators embraced the underlying philosophy of differentiating instruction to suit student needs, many were hampered by administrative duties which compromised their time and effort with regard to differentiation.</p
The classification of platform workers in the Australian context
Full text linkThis article considers the issue of classification of platform workers in Australia and it is motivated by the uncertainty that persists with this issue as well as the negative impacts that may arise for workers and platforms in such an environment. We contend that awaiting a decision of the High Court, that may provide clarification on the correct classification of platform workers, is not a preferred option for resolving the issue. Introducing a third category of worker to the existing categories – employee and independent contractor – has the potential to introduce its own complexities. Another option is a legislative intervention whereby existing legislation would be amended to deem platform workers to be employees. We argue that a better alternative is for the Australian legislature to enact a legislative definition of employee similar to that in the Employment Relations Act (New Zealand) s 6(1)(a). A principle-based approach to drafting the provision, and a purposive approach to its interpretation appear to be effective means of addressing the indeterminacy that has pervaded the platform worker classification issue in Australia.</p
Never at sea:an examination of collaboration and translation in a creative project about women's experiences of forced migration
Full text linkThis chapter examines the collaborative creative development of Never at Sea (2023), an interdisciplinary work harnessing film, sculpture, performance and sound that identifies water as a site of journey, absence, and a place of loss and death. Never at Sea was created in an environment where the politicisation of people seeking refuge in the United Kingdom is extreme. The art-making attempts to subvert this by focusing on the grief of forced migration, with an emphasis on women's knowledge and stories. This chapter explores two concepts of translation: (1) translation of ideas that lie with and between our different artistic disciplines and creative processes, and (2) how artistic responses to the dehumanisation of the refugee experience can serve to translate this global issue to audiences. We argue that creative practice has a unique ability to sit with uncertainty, change and challenging topics, and that this makes the work of artists a crucial contributor in voicing key issues of our time and advocating for change. The chapter explores the role of affect and embodiment in Never at Sea and the process and role of mediation in experiential translation. We explore abstraction as a dimension of experiential translation where non-representation opens avenues for new responses. We also discuss the ways we made this work with— not about—those implicitly affected by the issues the work interrogates. Following discussion on the background and context of Never at Sea, is an interview between key creatives Kate McMillan (visual artist) and Cat Hope (composer), facilitated by Louise Devenish (percussionist), discussing the capacity for transformation and change through creative work, and how that manifests in their respective practices
Coping in the classroom:a study of Professional Quality of Life (ProQoL) in Australian teachers
Full text linkResearch has shown that teachers are at increased risk for compassion fatigue and low careersatisfaction. Compassion fatigue may occur as a result of repeated exposure to traumatic experiences of someone in their care. Utilising a sample of 334 Australian teachers, the present studyexamined the impact of coping styles on compassion fatigue and compassion satisfaction. Regression analyses revealed that avoidant coping strategies were significant predictors of compassion fatigue. Conversely, teachers who utilised problem-focused coping strategies reported lower levels of compassion fatigue and higher levels of compassion satisfaction than teachers who used other types of coping strategies. These results serve to inform future supports and strategies to promote teacher wellbeing and satisfaction