scholarly journals Informed Trading of Futures Markets During the Financial Crisis: Evidence from the VPIN

2017 ◽  
Vol 9 (9) ◽  
pp. 123 ◽  
Author(s):  
Yen-Hsien Lee ◽  
Wen-Chien Liu ◽  
Chia-Lin Hsieh

This paper examines the impact of informed trading on futures returns during the 2008-2009 financial crisis. To precisely capture the informed trading in the highly volatile market during this period, we adopt the Volume-Synchronized Probability of Informed Trading (VPIN) of Easley, Hvidkjaer and O’Hara (2012) as our main measurement for informed trading. Besides, we also use a unique transaction dataset with investor identity to classify investors into domestic and foreign institutional investors, which the foreign institutional investors are supposed to be characterized by a higher degree of informed trading. Our empirical results show that the VPIN of foreign institutional investors has indeed significantly positive impacts on futures returns at the individual level. By contrast, the effect of the VPIN of domestic institutional investors on futures returns is only significant on Wednesdays, which could be seen as a special kind of day-of-the-week effect.

2021 ◽  
Vol 10 (6) ◽  
pp. 1161
Author(s):  
Raluca Pais ◽  
Thomas Maurel

The epidemiology and the current burden of chronic liver disease are changing globally, with non-alcoholic fatty liver disease (NAFLD) becoming the most frequent cause of liver disease in close relationship with the global epidemics of obesity, type 2 diabetes and metabolic syndrome. The clinical phenotypes of NAFLD are very heterogeneous in relationship with multiple pathways involved in the disease progression. In the absence of a specific treatment for non-alcoholic steatohepatitis (NASH), it is important to understand the natural history of the disease, to identify and to optimize the control of factors that are involved in disease progression. In this paper we propose a critical analysis of factors that are involved in the progression of the liver damage and the occurrence of extra-hepatic complications (cardiovascular diseases, extra hepatic cancer) in patients with NAFLD. We also briefly discuss the impact of the heterogeneity of the clinical phenotype of NAFLD on the clinical practice globally and at the individual level.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gerardo Chowell ◽  
Sushma Dahal ◽  
Raquel Bono ◽  
Kenji Mizumoto

AbstractTo ensure the safe operation of schools, workplaces, nursing homes, and other businesses during COVID-19 pandemic there is an urgent need to develop cost-effective public health strategies. Here we focus on the cruise industry which was hit early by the COVID-19 pandemic, with more than 40 cruise ships reporting COVID-19 infections. We apply mathematical modeling to assess the impact of testing strategies together with social distancing protocols on the spread of the novel coronavirus during ocean cruises using an individual-level stochastic model of the transmission dynamics of COVID-19. We model the contact network, the potential importation of cases arising during shore excursions, the temporal course of infectivity at the individual level, the effects of social distancing strategies, different testing scenarios characterized by the test’s sensitivity profile, and testing frequency. Our findings indicate that PCR testing at embarkation and daily testing of all individuals aboard, together with increased social distancing and other public health measures, should allow for rapid detection and isolation of COVID-19 infections and dramatically reducing the probability of onboard COVID-19 community spread. In contrast, relying only on PCR testing at embarkation would not be sufficient to avert outbreaks, even when implementing substantial levels of social distancing measures.


2022 ◽  
pp. 105984052110681
Author(s):  
Ashwini R. Hoskote ◽  
Emily Croce ◽  
Karen E. Johnson

School nurses are crucial to addressing adolescent mental health, yet evidence concerning their evolving role has not been synthesized to understand interventions across levels of practice (i.e., individual, community, systems). We conducted an integrative review of school nurse roles in mental health in the U.S. related to depressive symptoms, anxiety, and stress. Only 18 articles were identified, published from 1970 to 2019, and primarily described school nurses practicing interventions at the individual level, yet it was unclear whether they were always evidence-based. Although mental health concerns have increased over the years, the dearth of rigorous studies made it difficult to determine the impact of school nurse interventions on student mental health outcomes and school nurses continue to feel unprepared and under supported in this area. More research is needed to establish best practices and systems to support school nursing practice in addressing mental health at all levels of practice.


2015 ◽  
Vol 8 (4) ◽  
pp. 567-588 ◽  
Author(s):  
Carolin Rapp ◽  
Kathrin Ackermann

This paper scrutinizes the impact of intolerance toward diverse ethnic, religious, and cultural groups on an individual’s willingness to actively engage in non-violent protest. Following new insights, we examine the individual as well as the ecological effect of social intolerance on protest behavior. Drawing from insights of social psychology and communication science, we expect that the prevalence of intolerance reinforces the positive effect of individual-level intolerance on protest participation. From a rational choice perspective, however, a negative moderating effect is expected, as the expression of opinions becomes redundant for intolerant individuals in an intolerant society. We base our multilevel analyses on data from theWorld Values Surveyscovering 32 established democracies. Our results reveal that intolerance leads to more non-violent protest participation. This relationship, however, is strongly influenced by the prevalence of intolerance in a country.


2017 ◽  
Vol 43 (9) ◽  
pp. 950-965 ◽  
Author(s):  
Suman Neupane ◽  
Biwesh Neupane

Purpose The purpose of this paper is to examine the impact of mandatory regulatory provisions on board structure and the influence of such board structure on institutional holdings. Design/methodology/approach The study uses unique hand-collected data set of Indian IPOs during the 2004-2012 period after the corporate governance reforms with the introduction of clause 49 in the listing agreements in 2001. Using OLS regression, the paper empirically analyses the determinants of board size and board independence at the time of the IPOs and the influence of such a board structure on shareholdings by domestic and foreign institutional investors. Findings The authors find that complying with mandatory regulatory provisions does not impede firms from structuring their boards to reflect the firms’ advising and monitoring needs. The authors also find that complying with provisions have positive implication for the firm, as firms with greater board independence appear to attract more foreign institutional investors. Originality/value To the authors’ best knowledge, this is the first study to examine the issue in a regime where regulation mandates the composition of the board of directors. The paper also extends the literature on institutional holdings by providing evidence on the impact of board structure on institutional ownership at a critical time in a firm’s life cycle when concerns for endogeneity for empirical investigations are weaker.


2018 ◽  
Vol 44 (5) ◽  
pp. 915-952
Author(s):  
Petra Kipfelsberger ◽  
Heike Bruch ◽  
Dennis Herhausen

This article investigates how and when a firm’s level of customer contact influences the collective organizational energy. For this purpose, we bridge the literature on collective human energy at work with the job impact framework and organizational sensemaking processes and argue that a firm’s level of customer contact is positively linked to the collective organizational energy because a high level of customer contact might make the experience of prosocial impact across the firm more likely. However, as prior research at the individual level has indicated that customers could also deplete employees’ energy, we introduce transformational leadership climate as a novel contingency factor for this linkage at the organizational level. We propose that a medium to high transformational leadership climate is necessary to derive positive meaning from customer contact, whereas firms with a low transformational leadership climate do not get energized by customer contact. We tested the proposed moderated mediation model with multilevel modeling and a multisource data set comprising 9,094 employees and 75 key informants in 75 firms. The results support our hypotheses and offer important theoretical contributions for research on collective human energy in organizations and its interplay with customers.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shoukat Ali ◽  
Ramiz Ur Rehman ◽  
Bushra Sarwar ◽  
Ayesha Shoukat ◽  
Muhammad Farooq

Purpose The purpose of this paper is to empirically investigate the impact of board financial expertise on the shareholding of foreign institutional investors in an emerging equity market of China and to explore whether ownership concentration moderates the relationship between board financial expertise and foreign institutional investment. Design/methodology/approach To test the hypothesized relationships, this study uses panel data regression models, i.e. static (fixed effect and random effect) and dynamic (two-step generalized methods of moments) models. Further, to control the possible endogeniety issue, this study uses two instrumental variables, namely, board size and industry average financial expertise of board to proxy board financial expertise. This study covers a period from 2006 to 2015 for 169 listed Chinese firms. Findings The results revealed that foreign institutional investors positively perceived board financial expertise and holds more shareholdings with the increasing level of financial experts at boards of directors. Moreover, ownership concentration positively moderated this relationship. It means that in highly concentrated firms, the board financial expertise conveys a stronger signal to foreign institutional investors that firms can manage financial resources rationally by controlling negative effects of ownership concentration. Further, the robustness model also confirmed the relationship between board financial expertise and foreign institutional shareholdings. Originality/value To the best of authors’ knowledge, this is the first study to investigate board-level financial expertise as a determinant of foreign institutional ownership. Further, no previous study has used ownership concentration as a contextual variable on the relationship between board financial expertise and foreign institutional investment.


2019 ◽  
Vol 94 (5) ◽  
pp. 319-348 ◽  
Author(s):  
Albert Tsang ◽  
Fei Xie ◽  
Xiangang Xin

ABSTRACT We examine the impact of foreign institutional investors on firms' voluntary disclosure practices measured by management forecasts. In a sample of 32 non-U.S. countries, we find that, on average, foreign institutional investments lead to improved voluntary disclosure, and their impact is larger than that of domestic institutional investors. These results are more pronounced when foreign institutional investors (1) are unfamiliar with the firm's home country, (2) have longer investment horizons, and (3) are from countries with stronger investor protection and disclosure requirements than the firm's home country. However, we also find some evidence of voluntary disclosure deterioration in firms with foreign institutional investors from countries with inferior disclosure requirements and securities regulations and with concentrated foreign institutional ownership. Overall, our results suggest that the relation between foreign institutional investors and voluntary disclosure is much richer and more complex than what has been documented for domestic institutional investors in the literature.


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