Results 161 to 170 of about 5,237,449 (259)

Inefficient Frontiers: Industry‐Specific Anomalies in Frontier Markets

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT In this study we identify low‐risk anomalies affiliated with industry in frontier markets, offering valuable insights for fund managers and investors managing an internationally diversified portfolio. Utilising a two‐beta model—incorporating both market and industry betas—we reveal a distinct low‐beta anomaly with a monthly magnitude of 2.13 ...
Alya Hourani   +3 more
wiley   +1 more source

Characterization of dependence of multidimensional Lévy processes using Lévy copulas

open access: yes
This paper suggests Lévy copulas in order to characterize the dependence among components of multidimensional Lévy processes. This concept parallels the notion of a copula on the level of Lévy measures. As for random vectors, a version of Sklar's theorem
Kallsen, Jan, Tankov, Peter
core  

Impact of Cell Saver technology on pro‐hemostatic factors transfusion in placenta accreta spectrum interventions: A 10‐year retrospective single‐center study

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract Background While Cell Saver technology effectively reduces red blood cell transfusion in the perioperative setting, its impact on the need for pro‐hemostatic factors remains unclear. The use of Cell Saver could impact the requirements of pro‐hemostatic factors.
Ilan Levy   +7 more
wiley   +1 more source

Understanding Adolescents’ Perceptions of Anti‐Youth Ageism

open access: yesJournal of Adolescence, EarlyView.
ABSTRACT Introduction Past research suggests that adolescents may be subject to anti‐youth ageism from adults. However, little research has investigated adolescents’ subjective awareness and experiences of anti‐youth ageism by adults toward their specific age group. Thus, the purpose of this study was to conduct a secondary qualitative analysis of open‐
Ashleigh K. Poppler, Brandon G. Scott
wiley   +1 more source

Abrupt Lévy processes

open access: yes
Among Lévy processes with unbounded variation, we distinguish the abrupt ones, which are characterised by infinitely sharp extrema. Stable processes with parameter [alpha]>1 and creeping Lévy processes are abrupt.
Vigon, Vincent
core  

Ethnoracial Discrimination and Subsequent Cognitive Functioning Among Adolescents: A 2‐Month Follow‐up Study

open access: yesJournal of Adolescence, EarlyView.
ABSTRACT Introduction Ethnoracial discrimination is a persistent risk factor for adolescents' developmental problems, yet limited research has examined its prospective association with adolescents' cognitive functioning. The current research employed a two‐wave design to investigate whether ethnoracial discrimination predicted subsequent adolescent ...
Beiming Yang   +5 more
wiley   +1 more source

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