The Search Theory of Over-the-Counter Markets

2020 ◽  
Vol 12 (1) ◽  
pp. 747-773
Author(s):  
Pierre-Olivier Weill

I review the recent literature that applies search-and-matching theory to the study of over-the-counter financial markets. I formulate and solve a simple model to illustrate the typical assumptions and economic forces at play in existing work. I then offer thematic tours of the literature and, in the process, discuss avenues for future research.

Author(s):  
Erin Lockwood

This chapter focuses on the unintended consequences of the post-crisis mandate that over-the-counter (OTC) derivatives be cleared through centralized clearinghouses in an effort to reduce counterparty and systemic risk. Although central clearing has been widely implemented, it has reproduced many of the same characteristics of financial markets that contributed to the 2008 crisis: concentrated risk, moral hazard, and a reliance on faulty risk models. What accounts for the recalcitrance of the OTC derivatives market to a regulatory change? The chapter argues that focusing on the technologies and practices used to govern derivatives markets helps explain the absence of more radical regulatory policy shifts in derivatives regulation. Although there has been a significant shift in who regulates OTC markets, much less has changed at the level of the specific practices that govern these markets, and the chapter examines the continued reliance on netting, collateralization, and risk modeling within clearinghouses.


SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A148-A149
Author(s):  
Jessica Dietch ◽  
Norah Simpson ◽  
Joshua Tutek ◽  
Isabelle Tully ◽  
Elizabeth Rangel ◽  
...  

Abstract Introduction The purpose of the current study was to examine the relationship between current beliefs about hypnotic medications and historical use of prescription hypnotic medications or non-prescription substances for sleep (i.e., over the counter [OTC] medications, alcohol, and cannabis). Methods Participants were 142 middle age and older adults with insomnia (M age = 62.9 [SD = 8.1]; 71.1% female) enrolled in the RCT of the Effectiveness of Stepped-Care Sleep Therapy In General Practice (RESTING) study. Participants reported on history of substances they have tried for insomnia and completed the Beliefs about Medications Questionnaire-Specific with two subscales assessing beliefs about 1) the necessity for hypnotics, and 2) concerns about potential adverse consequences of hypnotics. Participants were grouped based on whether they had used no substances for sleep (No Subs, 11.6%), only prescription medications (Rx Only, 9.5%), only non-prescription substances (NonRx Only, 26.6%), or both prescription and non-prescription substances (Both, 52.3%). Results Sixty-one percent of the sample had used prescription medication for sleep and 79% had used non-prescription substances (74% OTC medication, 23% alcohol, 34% cannabis). The greater number of historical substances endorsed, the stronger the beliefs about necessity of hypnotics, F(1,140)=23.3, p<.001, but not about concerns. Substance groups differed significantly on necessity beliefs, F(3,1)=10.68, p<.001; post-hocs revealed the Both group had stronger beliefs than the No and NonRx Only groups. Substance groups also differed significantly on the concerns subscale, F(3,1)=6.68, p<.001; post-hocs revealed the NonRx Only group had stronger harm beliefs than the other three groups. Conclusion The majority of the sample had used both prescription and non-prescription substances to treat insomnia. Historical use of substances for treating insomnia was associated with current beliefs about hypnotics. Individuals who had used both prescription and non-prescription substances for sleep in the past had stronger beliefs about needing hypnotics to sleep at present, which may reflect a pattern of multiple treatment failures. Individuals who had only tried non-prescription substances for sleep may have specifically sought alternative substances due to concerns about using hypnotics. Future research should seek to understand the impact of treatment history on engagement in and benefit from non-medication-based treatment for insomnia. Support (if any) 1R01AG057500; 2T32MH019938-26A1


2016 ◽  
Vol 10 (4) ◽  
pp. 268-287 ◽  
Author(s):  
Victor Barger ◽  
James W. Peltier ◽  
Don E. Schultz

Purpose In “Social media’s slippery slope: challenges, opportunities and future research directions”, Schultz and Peltier (2013) asked “whether or how social media can be used to leverage consumer engagement into highly profitable relationships for both parties”. The purpose of this article is to continue this discussion by reviewing recent literature on consumer engagement and proposing a framework for future research. Design/methodology/approach The paper reviews the marketing literature on social media, paying particular attention to consumer engagement, which was identified as a primary area of concern in Schultz and Peltier (2013). Findings A significant amount of research has been conducted on consumer engagement since 2010. Lack of consensus on the definition of the construct has led to fragmentation in the discipline, however. As a result, research related to consumer engagement is often not identified as such, making it difficult for academics and practitioners to stay abreast of developments in this area. Originality/value This critical review provides marketing academics and practitioners insights into the antecedents and consequences of consumer engagement and offers a conceptual framework for future research.


2005 ◽  
Vol 4 (2) ◽  
Author(s):  
Roberto Roson

A recent literature, dealing with special markets characterized by bilateral network externalities, is summarized and critically assessed. Specific features of these markets, in terms of pricing principles and externalities, are discussed first. Afterwards, several issues related to competition between platforms are considered. Finally, implications for competition policy and prospects for future research are briefly discussed.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Łukasz Bryl ◽  
Justyna Fijałkowska ◽  
Dominika Hadro

Purpose This study aims to examine intellectual capital disclosure (ICD) on Twitter by 60 of the world’s largest companies and explains the main themes communicated to stakeholders. The second objective is to determine which topics provoke most stakeholders’ reactions. Design/methodology/approach The authors perform content analysis on more than 42,000 tweets to examine ICD practices along with the reactions of stakeholders in the form of retweets and “favorites” toward the information disclosed. Findings Intellectual capital (IC) is an important theme in corporate disclosure practices, as more than one-third of the published tweets refer to IC. The world’s largest companies focus on relational capital information, followed by human and structural capital. The main IC themes disclosed were management philosophy, corporate reputation and business partnering. Tweets related to IC are of greater interest to stakeholders than other tweets and provoke more reactions. There is no complete consistency between the topics most intensively disclosed by companies and those that elicit the most vivid responses from the addressees. Practical implications This study offers an understanding of the world’s largest companies’ practices that refer to ICD via social media and has implications for organizations in the creation and use of communication channels when developing a dialogue with stakeholders on topics regarding IC that may lead to better management of IC performance. Originality/value This paper is a response to the call for studies on ICD via social media, which is strongly highlighted in the recent literature concerning future research on IC and until now was almost absent in the field of business units. This research provides in-depth insights into the use of Twitter to disclose IC elements and indicates which fields and topics of this disclosure provoke stakeholders’ reactions, which is a novelty in ICD studies.


Author(s):  
Andrew Silke ◽  
John Morrison ◽  
Heidi Maiberg ◽  
Chloe Slay ◽  
Rebecca Stewart

Abstract Improving our understanding of how disengagement and deradicalisation from terrorism and violent extremism occurs has critical real-world implications. A systematic review of the recent literature in this area was conducted in order to develop a more refined and empirically-derived model of the processes involved. After screening more than 83,000 documents, we found 29 research reports which met the minimum quality thresholds. Thematic analysis identified key factors associated with disengagement and deradicalisation processes. Assessing the interactions of these factors produced the Phoenix Model of Disengagement and Deradicalisation which is described in this paper. Also examined are some of the potential policy and practice implications of the Phoenix Model, as are avenues for future research in this area.


Author(s):  
Ismaila Rimi Abubakar ◽  
Abubakar U. Benna ◽  
Umar G. Benna

The emergence of digital currencies is substantially influencing the growth of global financial markets and cities. Cryptocurrency entrepreneurs (CEs) are reshaping global cities and regions by transforming the way we live, work and interact. This chapter explores how the entrepreneurs use cryptocurrency assets and their underpinning computing technologies to transform the dysfunctional and evolving global cities. The CEs generate funds and create cutting-edge technologies to meet the challenges faced by cities, including unemployment, inadequate and rundown infrastructure and facilities as well as for new development to meet the needs of massive future urbanization. The chapter is organized in five parts. It first introduces the study and presents a background on the concepts of blockchain technologies and cryptocurrency, their emergence and development trend. It then discusses the rise of global cities and how technology impacts them, followed by the potentials and challenges of CEs in transforming global cities and regions. It ends with conclusion and future research directions.


Asthma ◽  
2014 ◽  
pp. 161-171
Author(s):  
Pramod Kelkar ◽  
Alan Goldsobel ◽  
Riccardo Polosa

Cough results from forced expulsion, usually against a closed glottis, creating a characteristic sound. It is a natural reflex and defense mechanism that helps the body clear excessive secretions and prevents foreign material from entering the respiratory tract. At times, cough can become excessive, nonproductive, disturbing to the patient, and potentially harmful. Cough is a complex symptom and often requires a multidisciplinary approach to ascertain its cause and effective treatment. Evaluation should be guided by a thorough history and physical examination, and testing should be individualized for cost effectiveness. Habit cough and unexplained cough are diagnoses of exclusion, and any tendency to underdiagnose or overdiagnose these conditions should be avoided. Most over-the-counter cough suppressants are not as effective as previously thought, and their use in routine practice should be minimized. Future research should be conducted to elucidate the mechanisms of cough production and to develop cough-suppressive pharmacotherapy. Allergists, as experts in the management of upper and lower airway disorders, should play a central role in the diagnosis and management of cough.


2019 ◽  
Vol 18 (2) ◽  
pp. 268-295
Author(s):  
David Peón ◽  
Manel Antelo ◽  
Anxo Calvo

Purpose The efficient market hypothesis (EMH) states that asset prices in financial markets always reflect all available information about economic fundamentals. The purpose of this paper is to provide a guide as to which predictions of the EMH seem to be borne out by empirical evidence. Design/methodology/approach Rather than following the classic three groups of tests for the different forms of EMH that are common in the literature, the authors consider how the two alternative definitions of the EMH and the joint hypothesis problem impact on the tests and leave the controversy unsolved. The authors briefly report the antecedents, the main theoretical and empirical contributions and recent literature on each type of tests. Findings Eventually, as a summary for each type of tests, the authors provide a critical view on the main sources of acrimony between the alternative schools of thought in understanding asset price formation. Originality/value The paper may be seen as an up-to-date introductory review for researchers on the different tests of the EMH performed, and for newcomers to understand the key sources of acrimony between rationalists and behaviorists.


2020 ◽  
Vol 20 (2) ◽  
pp. 269-305
Author(s):  
Amrei Müller

Abstract Recent literature and United Nations documents advocate that most armed non-state actors (ANSAs) should be bound by human rights law. This article takes a more critical stance on this issue. It argues that only a limited number of ANSAs should potentially become human rights duty-bearers: those that exercise de facto (human rights) jurisdiction and thus have considerable institutional and military capacities, as well as particular normative characteristics. It specifies these capacities and characteristics with an analysis of ANSAs’ practice that tentatively indicates that some of these entities may indeed exercise de facto jurisdiction. The argument is justified by highlighting the broader consequences that recognising ANSAs as human rights duty-bearers will entail. It will also endow them with privileges that will legitimise their authority over time. This is grounded in the normative logic of human rights law that emphasises the interrelationship between human rights, equality and democracy that also permeates the notion of jurisdiction and is further supported by a political understanding of the right to self-determination. The article closes with a brief sketch of two complementary ways to develop international law binding ANSAs to be further explored in future research: the so-called ‘responsibilities for human rights’ and an adapted law of occupation.


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