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1 – 10 of 981James Bentley and Zhangxin (Frank) Liu
The purpose of this study is to examine the impact of a recent innovation in the uranium market, the Global X Uranium Exchange-Traded Fund (URA), on the trading characteristics of…
Abstract
Purpose
The purpose of this study is to examine the impact of a recent innovation in the uranium market, the Global X Uranium Exchange-Traded Fund (URA), on the trading characteristics of constituent and non-constituent stocks.
Design/methodology/approach
The authors analyse bid-ask spread measures, relative effective spreads and adverse selection costs to assess changes in information asymmetry among uranium stocks. The authors also study abnormal returns to assess the impact of URA on the market.
Findings
Over a three-month period, following the introduction of URA, the authors find uranium stocks display decreased bid-ask spread measures, driven by reductions in information asymmetry. Relative effective spreads decrease by 36% after the introduction of URA, and adverse selection costs decline by 24% over the same period. Uranium stocks experience a significant positive abnormal return of 5.0% the day after the introduction of URA with subsequent price reversals. These suggest that the introduction of URA prompted uninformed traders to rebalance portfolios and migrate to the less information-sensitive Exchange-Traded Fund (ETF), causing temporary deviations in trading characteristics.
Originality/value
The authors demonstrate that the introduction of new financial securities to the market can have a significant impact on the trading characteristics of related equities. As URA is the only ETF in the uranium sector, the authors thereby avoid the influence of multiple ETFs that may have impacted previous studies.
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The attempt to recover the international origins of social and political thought is motivated by the unsatisfactory fragmentation of modern knowledge – by its failure to account…
Abstract
The attempt to recover the international origins of social and political thought is motivated by the unsatisfactory fragmentation of modern knowledge – by its failure to account for the intimate connections between theory and history in general and its international dimension in particular – and seeks to overcome these divides. This article provides an analysis of the theory/history divide and its role for the fragmentation of modern knowledge. Theoretically, it shows, this divide is rooted in, and reproduced by, the epistemic foundations of modern knowledge. Historically, the modern episteme arises from a crisis of imperial politics in the 18th century. This analysis suggests that theory, history, and the international are products rather than origins of modern social and political thought. These historical origins thus do not provide the basis for more integrated forms of knowledge. They do, however, reveal how the fragmentation of knowledge itself simultaneously serves and obscures the imperialist dimension of modern politics.
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Imtiaz Sifat, Azhar Mohamad and Zarinah Hamid
Magnet effect entails a hypothesis in market microstructure entailing a systemic likelihood of prices being sucked toward the theoretical threshold. The purpose of this paper is…
Abstract
Purpose
Magnet effect entails a hypothesis in market microstructure entailing a systemic likelihood of prices being sucked toward the theoretical threshold. The purpose of this paper is to investigate the existence of magnet effect in Bursa Malaysia via overnight returns.
Design/methodology/approach
This study investigates the existence of magnet effect via overnight returns in Bursa Malaysia by utilizing historical daily price data from 1994 to 2017 by probabilistic regression approaches. The authors divide the study period into three distinct regimes based on regulatory limit mechanisms.
Findings
Based on demarcated regimes, the authors find evidence of magnet effect in Bursa Malaysia throughout all regimes, with a heightened magnitude detected between 2002 and 2013. Moreover, upper limit scenarios exhibit a greater propensity for magnet effect. The authors end the paper with implications of the findings for portfolio managers, intraday traders, and policymakers.
Originality/value
The research is the first of its kind in attempting to measure the magnet effect in Malaysia via overnight jumps.
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Qian Yee Ang and Siew Chun Low
Molecularly imprinted polymers (MIPs) have aroused focus in medicinal chemistry in recent decades, especially for biomedical applications. Considering the exceptional abilities to…
Abstract
Purpose
Molecularly imprinted polymers (MIPs) have aroused focus in medicinal chemistry in recent decades, especially for biomedical applications. Considering the exceptional abilities to immobilize any guest of medical interest (antibodies, enzymes, etc.), MIPs is attractive to substantial research efforts in complementing the quest of biomimetic recognition systems. This study aims to review the key-concepts of molecular imprinting, particularly emphasizes on the conformational adaptability of MIPs beyond the usual description of molecular recognition. The optimal morphological integrity was also outlined in this review to acknowledge the successful sensing activities by MIPs.
Design/methodology/approach
This review highlighted the fundamental mechanisms and underlying challenges of MIPs from the preparation stage to sensor applications. The progress of electrochemical and optical sensing using molecularly imprinted assays has also been furnished, with the evolvement of molecular imprinting as a research hotspot.
Findings
The lack of standard synthesis protocol has brought about an intriguing open question in the selection of building blocks that are biocompatible to the imprint species of medical interest. Thus, in this paper, the shortcomings associated with the applications of MIPs in electrochemical and optical sensing were addressed using the existing literature besides pointing out possible solutions. Future perspectives in the vast development of MIPs also been postulated in this paper.
Originality/value
The present review intends to furnish the underlying mechanisms of MIPs in biomedical diagnostics, with the aim in electrochemical and optical sensing while hypothesizing on future possibilities.
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Sergey A. Piletsky, S. Subrahmanyam and Anthony P.F. Turner
Molecular imprinting is a generic technology, which introduces recognition properties into synthetic polymers using appropriate templates. Over the last two decades molecularly…
Abstract
Molecular imprinting is a generic technology, which introduces recognition properties into synthetic polymers using appropriate templates. Over the last two decades molecularly imprinted polymers (MIPs) have become a focus of interest for scientists engaged in the development of biological and chemical sensors. This is due to the many and considerable advantages they possess in comparison to natural receptors, enzymes and antibodies such as superior stability, low cost and ease of preparation. This brief review covers recent achievements and potential applications of imprinted sensors with specific reference to the environment and biotechnology.
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EAST ASIA: Defence cooperation will be tested
Details
DOI: 10.1108/OXAN-ES288621
ISSN: 2633-304X
Keywords
Geographic
Topical
When agents first become active investors in financial markets, they are relatively inexperienced. Much of the literature focuses on the incentives of presumably sophisticated…
Abstract
When agents first become active investors in financial markets, they are relatively inexperienced. Much of the literature focuses on the incentives of presumably sophisticated informed agents to produce information, and not on the nave agents. However, unsophisticated agents are important aspects of financial markets and worth analyzing further. In this paper, we provide a theoretical perspective that addresses the issue of how many nave traders would one expect in a financial market where policy makers try to educate the nave agents.We show that such policy balances the effects of nave trades on corporate investment and liquidity, as well as the monetary cost of increasing financial sophistication. The optimal proportion of nave agents varies with the value of information, the noise in private signals, and the inherent sensitivity of corporate investment to prices.We also show that the policy tool of encouraging insider trading can deter nave investors and thus improve corporate governance and the efficacy of corporate investment.
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The traditional postcolonial focus on the modern and the European, and pre-modern and non-European empires has marginalized the study of empires like the Ottoman Empire whose…
Abstract
The traditional postcolonial focus on the modern and the European, and pre-modern and non-European empires has marginalized the study of empires like the Ottoman Empire whose temporal reign traversed the modern and pre-modern eras, and its geographical land mass covered parts of Eastern Europe, the Balkans, Asia Minor, the Arabian Peninsula, and North Africa. Here, I first place the three postcolonial corollaries of the prioritization of contemporary inequality, the determination of its historical origins, and the target of its eventual elimination in conversation with the Ottoman Empire. I then discuss and articulate the two ensuing criticisms concerning the role of Islam and the fluidity of identities in states and societies. I argue that epistemologically, postcolonial studies criticize the European representations of Islam, but do not take the next step of generating alternate knowledge by engaging in empirical studies of Islamic empires like the Ottoman Empire. Ontologically, postcolonial studies draw strict official and unofficial lines between the European colonizer and the non-European colonized, yet such a clear-cut divide does not hold in the case of the Ottoman Empire where the lines were much more nuanced and identities much more fluid. Still, I argue that contemporary studies on the Ottoman Empire productively intersect with the postcolonial approach in three research areas: the exploration of the agency of imperial subjects; the deconstruction of the imperial center; and the articulation of bases of imperial domination other than the conventional European “rule of colonial difference” strictly predicated on race. I conclude with a call for an analysis of Ottoman postcoloniality in comparison to others such as the German, Austro-Hungarian, Russian, Persian, Chinese, Mughal, and Japanese that negotiated modernity in a similar manner with the explicit intent to generate knowledge not influenced by the Western European historical experience.
The authors examine the relationship between credit default swaps (CDS) initiation and managers’ earnings forecast choices with different corporate governance structures. The…
Abstract
The authors examine the relationship between credit default swaps (CDS) initiation and managers’ earnings forecast choices with different corporate governance structures. The authors expect that corporate governance plays a significant role in managers’ disclosure behavior as well as CDS initiation. The findings suggest that CDS initiation and managers’ earnings forecast behavior are positively associated. Firms with a strong monitoring mechanism issue a higher number of earnings forecasts and also issue forecasts more frequently when there is a traded CDS contract in the market. Additionally, the results suggest that managers issue more accurate earnings forecasts. Overall, these findings imply that the role of managers is important to mitigate the information asymmetry between individual and institutional investors when there is a new financial instrument because the development of the regulations and market rules for these instruments takes a longer time.
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Åsa Andersson, Margareta Bohlin, Linda Lundin and Emma Sorbring
The purpose of this study was to investigate how young women and men perceive the Internet as a phenomenon and what role and meaning they ascribe to the Internet as an arena for…
Abstract
Purpose
The purpose of this study was to investigate how young women and men perceive the Internet as a phenomenon and what role and meaning they ascribe to the Internet as an arena for defining themselves and for shaping their identity.
Methodology/approach
The empirical data consist of narratives written by Swedish adolescents. Using content analysis the analysis was carried out in three steps: (1) finding categories and themes, (2) calculation of statistical differences in category frequencies, (3) a theoretically informed interpretation of central themes, using Bourdieu’s concept of different forms of capital, and Giddens’ concept of “pure relations.”
Findings
The narratives exemplify how computer literacy and technological competence can be converted into social, cultural, and symbolic capital. Gender differences occur both in statistical differences between category frequencies in girls’ and boys’ narratives and in the interpretation of central themes. But there are also several examples that show more complex and contradictory tendencies, exceeding or transformative of gender differences and hierarchy.
Originality/value
This study considers adolescents’ own perspectives on an arena of great importance. The analyses have been performed both qualitatively and quantitatively, which gives a nuanced picture of young people’s self-defining experiences on the Internet.
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