Hanxiong Zhang and Andrew Urquhart
Motivated by the debate on the patterns and sources of commodity futures returns, this paper investigates the performance of three investment trading strategies, namely, the…
Abstract
Purpose
Motivated by the debate on the patterns and sources of commodity futures returns, this paper investigates the performance of three investment trading strategies, namely, the momentum strategy of Jegadeesh and Titman (1993), the 52-week high momentum strategy of George and Hwang (2004) and the pairs trading strategy of Gatev et al. (2006) in the commodity futures market.
Design/methodology/approach
The three strategies are those given by Jegadeesh and Titman (1993), George and Hwang (2004) and Gatev et al. (2006), respectively.
Findings
The authors find that there is no significant reversal profit across 189 formation-holding windows for all the three strategies. However, there are statistical and economically significant momentum profits, and the profitability increases with the rising of formation-holding periods. Momentum returns are quite sensitive to market conditions but the crash of momentum returns is partly predictable. Return seasonality, risk and herding also provide partial explanation of the momentum profits.
Originality/value
The authors are the first to compare the performances of the pairs trading strategy of Gatev et al. (2006), the conventional momentum of Jegadeesh and Titman (1993), and the 52-week high momentum of George and Hwang (2004) under 189 formation-holding windows. Also, the authors are the first to investigate the association between herding behaviour and momentum returns in the commodity futures market.
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A study utilising personal data contained in census enumerators' returns and records of civil registration for Portpatrick (Wigtownshire) does not produce conclusive evidence for…
Abstract
A study utilising personal data contained in census enumerators' returns and records of civil registration for Portpatrick (Wigtownshire) does not produce conclusive evidence for interpreting regional variations in bastardy in terms of illegitimacy subcultures or the nature of farming units. The Portpatrick data suggest that understanding of nineteenth century Scottish illegitimacy will not be resolved until the extent and causes of variations in bastardy from parish to parish within broad regions, and from time period to time period, are better understood.
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Tobias Burggraf, Toan Luu Duc Huynh, Markus Rudolf and Mei Wang
This study examines the prediction power of investor sentiment on Bitcoin return.
Abstract
Purpose
This study examines the prediction power of investor sentiment on Bitcoin return.
Design/methodology/approach
We construct a Financial and Economic Attitudes Revealed by Search (FEARS) index using search volume from Google's search engine to reveal household-level (“bankruptcy”, “unemployment”, “job search”, etc.) and market-level sentiment (“bankruptcy”, “unemployment”, “job search”, etc.).
Findings
Using a variety of quantitative methodologies such as the transfer entropy model as well as threshold regression and OLS, GLS and 2SLS estimations, we find that (1) investor sentiment has strong predictive power on Bitcoin, (2) household-level sentiment has larger effects than market-level sentiment and (3) the impact of sentiment is greater in low sentiment regimes than in high sentiment regimes. Based on these information, we build a hypothetical trading strategy that outperforms a simple buy-and-hold strategy both on an absolute and risk-adjusted basis. The results are consistent across cryptocurrencies and regions.
Research limitations/implications
The findings contribute to the ongoing debate in the literature on the efficiency of cryptocurrency markets. The results reveal that the Bitcoin market is not efficient in the sense of the efficient market hypothesis – asset prices do not fully reflect all available information and we were able to “beat the market”. In addition, it sheds further light on the debate whether Bitcoin can be considered a medium of exchange, i.e. a currency or an investment product. Because investors are reallocating their Bitcoin holdings during times of increased market sentiment due to liquidity needs, they obviously consider bitcoin an investment product rather than a currency.
Originality/value
This study is the first to examine the impact of investor sentiment measured by FEARS on Bitcoin return.
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Shailendra Singh, Mahesh Sarva and Nitin Gupta
The purpose of this paper is to systematically analyze the literature around regulatory compliance and market manipulation in capital markets through the use of bibliometrics and…
Abstract
Purpose
The purpose of this paper is to systematically analyze the literature around regulatory compliance and market manipulation in capital markets through the use of bibliometrics and propose future research directions. Under the domain of capital markets, this theme is a niche area of research where greater academic investigations are required. Most of the research is fragmented and limited to a few conventional aspects only. To address this gap, this study engages in a large-scale systematic literature review approach to collect and analyze the research corpus in the post-2000 era.
Design/methodology/approach
The big data corpus comprising research articles has been extracted from the scientific Scopus database and analyzed using the VoSviewer application. The literature around the subject has been presented using bibliometrics to give useful insights on the most popular research work and articles, top contributing journals, authors, institutions and countries leading to identification of gaps and potential research areas.
Findings
Based on the review, this study concludes that, even in an era of global market integration and disruptive technological advancements, many important aspects of this subject remain significantly underexplored. Over the past two decades, research has lagged behind the evolution of capital market crime and market regulations. Finally, based on the findings, the study suggests important future research directions as well as a few research questions. This includes market manipulation, market regulations and new-age technologies, all of which could be very useful to researchers in this field and generate key inputs for stock market regulators.
Research limitations/implications
The limitation of this research is that it is based on Scopus database so the possibility of omission of some literature cannot be completely ruled out. More advanced machine learning techniques could be applied to decode the finer aspects of the studies undertaken so far.
Practical implications
Increased integration among global markets, fast-paced technological disruptions and complexity of financial crimes in stock markets have put immense pressure on market regulators. As economies and equity markets evolve, good research investigations can aid in a better understanding of market manipulation and regulatory compliance. The proposed research directions will be very useful to researchers in this field as well as generate key inputs for stock market regulators to deal with market misbehavior.
Originality/value
This study has adopted a period-wise broad-based scientific approach to identify some of the most pertinent gaps in the subject and has proposed practical areas of study to strengthen the literature in the said field.
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The British Library (BL) faces a significant challenge with storage space predicted to run out within the next three years. However, alongside a plan to create additional…
Abstract
Purpose
The British Library (BL) faces a significant challenge with storage space predicted to run out within the next three years. However, alongside a plan to create additional capacity, the BL also intends to take the opportunity to rethink the integration of storage and workflows in order to implement a fully optimised end-to-end model of content management. This approach will incorporate not only storage and workflow design and integration, but also the physical environments and facilities for staff and users.
Design/methodology/approach
This paper draws on years of experience in the context of systemic industry changes to lead the reader into new thinking and opportunities in relation to print preservation and access. It should be noted that some of the aspirational new thinking described within this article may not come to fruition due to construction market inflation and resulting budgetary constraints.
Findings
As the national library of the UK, BL, like all libraries, has the responsibility of storing (preserving) its collections while making them accessible to everyone. Traditional models of physical storage can often operate in isolation from the processes that accompany them – creating silos of materials, completely remote from either the acquisition and description processes that precede their storage, or misaligned with the processes in place to support access.
Practical implications
The presentation of this conceptual thinking could help inform other libraries planning to build new print repositories.
Originality/value
The strategic approach outlined within this paper has adopted ideas and concepts from non-library applications, bringing them together to form a holistic solution that delivers the ultimate aims of a library within a modern context.
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Andrew Pearson and Christine Urquhart
Examines requirements of information professionals in the health sector, and ways career development can be enhanced. Includes analysis of job descriptions, categorising skills…
Abstract
Examines requirements of information professionals in the health sector, and ways career development can be enhanced. Includes analysis of job descriptions, categorising skills and roles, mapping profiles to other criteria, including health sector, and two statements for standards in higher education. Interviews with nine professionals confirmed findings of the job description analysis. There is a spectrum of skills, with clumps of traditional library skills, information analysis skills and a growing need for specialist skills. The statement provides a good basis for skills required. Providers need to encourage students towards “lifelong learning” to meet changing requirements.
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Christine J. Urquhart, Andrew M. Cox and Siân Spink
Collaboration on procurement of e‐content between health libraries in the National Health Service (NHS) and in higher education (HE) should have advantages in increasing their…
Abstract
Purpose
Collaboration on procurement of e‐content between health libraries in the National Health Service (NHS) and in higher education (HE) should have advantages in increasing their negotiating power to improve licence terms and avoiding unnecessary duplication of content. The aim of the paper is to examine some of the strategies for ensuring that collaboration across the two sectors works effectively. The paper is based on a report to the Joint Information Systems Committee of the Funding Councils (for higher and further education) in the UK, and the NHS Library and Knowledge Development Network, on research conducted in 2006.
Design/methodology/approach
The methods included interviews (n=39) with representatives from NHS and higher education bodies, representatives of independent health libraries, the National Library for Health, collective agencies, publishers and aggregators.
Findings
There were common interests in functionality/interfaces, open access, and better metrics for estimating usage that might contribute to discussions with publishers over the licence terms. There are differences in the type of resource each sector might deem to be core. The extent of existing collaboration on purchasing and related collection management activities varied considerably across the UK. Three possible paths for cooperative activity were identified: sharing information and joint advocacy; building the technical infrastructure; and joint procurement. Mapping of the stages, roles, actors and stakeholders in some processes was done with “use cases” (Unified Modeling Language) to help identify some of the risks involved.
Research limitations/implications
Poor response from online surveys limited the validity of the forecasting of user needs. Usage statistics were difficult to obtain and compare.
Practical implications
The paper concludes that collaborative procurement of e‐content activities should focus on health services research requirements, and open access needs across the sectors. More innovative analysis of usage statistics is required to profile usage and inform cost analyses of both the impact of new roles for health librarians, and cost analyses of e‐resources on a life cycle basis.
Originality/value
The paper develops new ways of examining the business processes required for collaborative procurement.
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Andrew D. Madden, Sheila Webber, Nigel Ford and Mary Crowder
The purpose of this paper is to investigate the relationship between preferred choice of school subject and student information behaviour (IB).
Abstract
Purpose
The purpose of this paper is to investigate the relationship between preferred choice of school subject and student information behaviour (IB).
Design/methodology/approach
Mixed methods were employed. In all, 152 students, teachers and librarians participated in interviews or focus groups. In total, 1,375 students, key stage 3 (11-14 years) to postgraduate, responded to a questionnaire. The research population was drawn from eight schools, two further education colleges and three universities. Insights from the literature review and the qualitative research phase led to a hypothesis which was investigated using the questionnaire: that students studying hard subjects are less likely to engage in deep IB than students studying soft subjects.
Findings
Results support the hypothesis that preferences for subjects at school affect choice of university degree. The hypothesis that a preference for hard or soft subjects affects IB is supported by results of an analysis in which like or dislike of maths/ICT is correlated with responses to the survey. Interviewees’ comments led to the proposal that academic subjects can be classified according to whether a subject helps students to acquire a “tool of the Mind” or to apply such a tool. A model suggesting how IB may differ depending on whether intellectual tools are being acquired or applied is proposed.
Practical implications
The “inner logic” of certain subjects and their pedagogies appears closely linked to IB. This should be considered when developing teaching programmes.
Originality/value
The findings offer a new perspective on subject classification and its association with IB, and a new model of the association between IB and tool acquisition or application is proposed, incorporating the perspectives of both teacher and student.
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Liz Brewster, Barbara Sen and Andrew Cox
The purpose of this paper is to explore how the use of self‐help bibliotherapy developed from a local pilot scheme to become national policy in Wales. Analysis aims to focus on…
Abstract
Purpose
The purpose of this paper is to explore how the use of self‐help bibliotherapy developed from a local pilot scheme to become national policy in Wales. Analysis aims to focus on the use of evidence‐based practice (EBP) as a justification in the process of policy creation.
Design/methodology/approach
A mixed methodological approach was used to gather data, incorporating semi‐structured interviews, documents, and descriptive statistics. Actor‐network theory (ANT) was used as a critical lens to frame analysis.
Findings
The study finds that the translation from local pilot to national initiative was achieved using legitimising discourses including EBP. These discourses were used selectively, and in response to the needs of the focal actors in the network. The complex relationship between EBP and self‐help bibliotherapy is explored in connection with healthcare policy, concluding that the use of EBP legitimises a lack of patient‐centred evaluation.
Research limitations/implications
Limitations of the research include a lack of engagement with patients using the scheme, and future research should aim to present a more patient‐centred account to complement this policy‐focused work.
Originality/value
Little in‐depth work has been conducted on the strategy behind the introduction of bibliotherapy schemes in the UK or elsewhere, and this paper presents an in‐depth theoretical analysis of the first nationwide bibliotherapy scheme in the world.