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1 – 6 of 6Volodymyr Novykov, Christopher Bilson, Adrian Gepp, Geoff Harris and Bruce James Vanstone
Machine learning (ML), and deep learning in particular, is gaining traction across a myriad of real-life applications. Portfolio management is no exception. This paper provides a…
Abstract
Purpose
Machine learning (ML), and deep learning in particular, is gaining traction across a myriad of real-life applications. Portfolio management is no exception. This paper provides a systematic literature review of deep learning applications for portfolio management. The findings are likely to be valuable for industry practitioners and researchers alike, experimenting with novel portfolio management approaches and furthering investment management practice.
Design/methodology/approach
This review follows the guidance and methodology of Linnenluecke et al. (2020), Massaro et al. (2016) and Fisch and Block (2018) to first identify relevant literature based on an appropriately developed search phrase, filter the resultant set of publications and present descriptive and analytical findings of the research itself and its metadata.
Findings
The authors find a strong dominance of reinforcement learning algorithms applied to the field, given their through-time portfolio management capabilities. Other well-known deep learning models, such as convolutional neural network (CNN) and recurrent neural network (RNN) and its derivatives, have shown to be well-suited for time-series forecasting. Most recently, the number of papers published in the field has been increasing, potentially driven by computational advances, hardware accessibility and data availability. The review shows several promising applications and identifies future research opportunities, including better balance on the risk-reward spectrum, novel ways to reduce data dimensionality and pre-process the inputs, stronger focus on direct weights generation, novel deep learning architectures and consistent data choices.
Originality/value
Several systematic reviews have been conducted with a broader focus of ML applications in finance. However, to the best of the authors’ knowledge, this is the first review to focus on deep learning architectures and their applications in the investment portfolio management problem. The review also presents a novel universal taxonomy of models used.
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Subodh Singh and Sabyasachi Sinha
This paper aims to explore the effect of gender diversity and female empowerment on a firm’s exploration and exploitation capabilities.
Abstract
Purpose
This paper aims to explore the effect of gender diversity and female empowerment on a firm’s exploration and exploitation capabilities.
Design/methodology/approach
This is an empirical paper. This study investigated the research question in this paper using data on UK Financial Times Stock Exchange 100 firms and OLS regression analysis.
Findings
This study found a positive association between senior management gender diversity in the workforce and exploitation and exploration capabilities. Also, female empowerment positively moderates senior management gender diversity’s impact on exploration capability.
Practical implications
This study advises firms aspiring ambidextrous to establish gender diversity – especially at the senior management level – and focus on female empowerment in their organisations.
Originality/value
This paper argued for the role of females in making the organisations ambidextrous by impacting both exploitation and exploration capabilities, which did not receive adequate research attention to date.
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The purpose of this paper is to provide an example of patient-led co-production.
Abstract
Purpose
The purpose of this paper is to provide an example of patient-led co-production.
Design/methodology/approach
The New Economics Foundation’s six principles of co-production (nef, 2013) have been used to frame the activities undertaken during the author’s relationship with a community mental health nurse.
Findings
This paper describes a co-produced project between a patient and a community mental health nurse to create a range of resources and to deliver training, resulting in mutual benefit for both parties.
Practical implications
This paper invites policy makers to consider the unique role that community mental health nurses can play in supporting patients with long-term challenges that have developed because of an imbalance and an abuse of power within earlier relationships; by adopting a co-production approach, centred on the patient’s interests and skills, a working partnership can be achieved wherein both parties feel that they matter.
Originality/value
Co-production is usually used with groups of stakeholders working together in an equitable way to design or deliver a new service; this paper, however, seeks to demonstrate how the process can be effectively used when the project is patient-led within the context of a therapeutic relationship.
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Benonia Tinarwo, Farzad Rahimian and Dana Abi Ghanem
The aim of this paper is to discuss a selection of policy strategies, regional initiatives and market approaches to uncover the realities of twenty-first-century building energy…
Abstract
Purpose
The aim of this paper is to discuss a selection of policy strategies, regional initiatives and market approaches to uncover the realities of twenty-first-century building energy performance. A position that market-based approaches, human influence and policy interventions are part of an ecosystem of building energy performance is presented.
Design/methodology/approach
An exploratory search of secondary sources spanning the last three decades was conducted. Both peer-reviewed and grey literature were included to capture a broader understanding of the discourse in literature. Research questions guided the literature search, and a data extraction tool was designed to categorise the literature. The primary limitation of this study is that only a few applications could be discussed in a condensed format.
Findings
Several challenges about the current status quo of building energy performance were identified and summarised as follows. (1) Inconsistencies in measurement and verification protocols, (2) Impacts of market approaches, (3) National policy priorities that are at variance with regional targets and (4) Ambiguous reporting on environmental impacts of energy efficiency (EE) technologies.
Practical implications
The practical implications of the findings in this paper for practice and research are that as part of the building energy performance ecosystem, national responses through government interventions must become adaptive to keep up with the fast-paced energy sector and social trends. Simultaneously, before market-based approaches overcome the messiness of socio-economic dynamics, institutional conditions and cultural nuances, they ought to transparently address environmental impacts and the infringement of several SDGs before they can become viable solutions to building energy performance.
Originality/value
This paper presents building energy performance as an ecosystem comprising human influence, market-based approaches and policy interventions which form interdependent parts of the whole. However, evidence in the literature shows that these aspects are usually investigated separately. By presenting them as an ecosystem, this paper contributes to the discourse by advocating the need to re-align building energy performance to socio-economic-political dynamics and contextually viable solutions.
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Chris Brown, Jana Groß Ophoff, Kim Chadwick and Sharon Parkinson
Background: Democratic societies thrive when citizens actively and critically engage with new ideas, developments and claims to truth. Not only can such practices result in more…
Abstract
Background: Democratic societies thrive when citizens actively and critically engage with new ideas, developments and claims to truth. Not only can such practices result in more effective choice-making, but they can also lead to widespread support for progressive beliefs, such as social justice. Yet with western societies in the midst of environmental, social and political crises, it seems more pertinent than ever that citizens become “ideas-informed”.
Methods: Drawing on a survey of 1,000 voting age citizens in England, this paper aims to provide insight into the following: (1) the current “state of the nation” in terms of whether, and how, individuals keep themselves up to date with regards to new ideas, developments and claims to truth; (2) the impact of staying up to date on beliefs such as social justice; (3) the factors influencing people’s propensity to stay up to date, their support for value-related statements, as well as the strength of these influencing factors; and (4) clues as to how the extant “state of the nation” might be improved.
Results: Our findings indicate that many people do keep up to date, do so in a variety of ways, and also engage with ideas as mature critical consumers. There is also strong importance attached by most respondents to the values one would hope to see in a progressive and scientifically literate society. Yet, as we illustrate with our structural equation model, there are a number of problematic network and educational related factors which affect: (1) whether and how people stay up to date; and (2) the importance people ascribe to certain social values, irrespective of whether they stay up to date or not.
Conclusions: Suggestions for the types of social intervention that might foster “ideas-informed” democracies (such as improved dialogue) are presented, along with future research in this area.
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In advancing the academic discourse around the theory of field, place and space in ethnographic research, this paper proposes a carnal sociological reading of the meaning and form…
Abstract
Purpose
In advancing the academic discourse around the theory of field, place and space in ethnographic research, this paper proposes a carnal sociological reading of the meaning and form of the Lindsay Leg Clubs – third-sector community leg care centres for older adults with leg problems – as a therapeutic space-construct.
Design/methodology/approach
The paper draws on non-formulaic, polymorphic ethnographic research in the UK Lindsay Leg Clubs conducted through multiple on-site and extramural engagements with the Leg Club community between 2019 and 2023 and an interview with the Leg Club founder and president, Professor Ellie Lindsay OBE. Wacquant's (2015) reflexive, enactive ethnographic approach is applied to develop an intellectual and carnal know-how of Leg Clubs as therapeutic space-constructs.
Findings
The researcher's “flesh and blood” experience of the Leg Clubs reveals the importance of cognitive and embodied appreciation of sounds, smells, sights, movements, the structures of wound stigma, centre-stage physical bodies of members and the volunteers, the material arrangement of the place and the researcher's own visceral and intellectual, biographical relation to the fieldwork to understand the therapeutic form and meaning of Leg Club spaces.
Originality/value
Applying the carnal sociology approach to reveal the therapeutic form and meaning of the Leg Club spaces makes concrete the abstract distinctions between field, place and space in ethnographic research, hence advancing the discourse around the theory of field in ethnography. A carnal sociological reading of the Leg Club spaces has implications for an embodied understanding of broader community care spaces.
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