scholarly journals A Primer on Pumping and Dumping: How Hedge Funds Do It and How Others Might Profit

2021 ◽  
Vol 9 (8) ◽  
pp. 175-180
Author(s):  
Greg Samsa

Pumping and dumping occurs when the price of a stock is artificially inflated and then drops.  Here, we illustrate how hedge funds can accomplish pumping and dumping, and argue why this strategy is likely to be successful for them.  We illustrate why writing a short-term in-the-money covered call option might constitute an informed speculation when pumping and dumping is suspected.  In contradistinction to the usual practice, estimating the returns of a strategy which is based upon the predictable characteristics of pumping and dumping would be best tested prospectively, and social media communities might fruitfully participate in such research.

2014 ◽  
Vol 24 (2) ◽  
pp. 181-204 ◽  
Author(s):  
Jeff McCarthy ◽  
Jennifer Rowley ◽  
Catherine Jane Ashworth ◽  
Elke Pioch

Purpose – The purpose of this paper is to contribute knowledge on the issues and benefits associated with managing brand presence and relationships through social media. UK football clubs are big businesses, with committed communities of fans, so are an ideal context from which to develop an understanding of the issues and challenges facing organisations as they seek to protect and promote their brand online. Design/methodology/approach – Due to the emergent nature of social media, and the criticality of the relationships between clubs and their fans, an exploratory study using a multiple case study approach was used to gather rich insights into the phenomenon. Findings – Clubs agreed that further development of social media strategies had potential to deliver interaction and engagement, community growth and belonging, traffic flow to official web sites and commercial gain. However, in developing their social media strategies they had two key concerns. The first concern was the control of the brand presence and image in social media, and how to respond to the opportunities that social media present to fans to impact on the brand. The second concern was how to strike an appropriate balance between strategies that deliver short-term revenue, and those that build longer term brand loyalty. Originality/value – This research is the first to offer insights into the issues facing organisations when developing their social media strategy.


2021 ◽  
Vol 7 ◽  
pp. e665
Author(s):  
Salim Sazzed

The presence of abusive and vulgar language in social media has become an issue of increasing concern in recent years. However, research pertaining to the prevalence and identification of vulgar language has remained largely unexplored in low-resource languages such as Bengali. In this paper, we provide the first comprehensive analysis on the presence of vulgarity in Bengali social media content. We develop two benchmark corpora consisting of 7,245 reviews collected from YouTube and manually annotate them into vulgar and non-vulgar categories. The manual annotation reveals the ubiquity of vulgar and swear words in Bengali social media content (i.e., in two corpora), ranging from 20% to 34%. To automatically identify vulgarity, we employ various approaches, such as classical machine learning (CML) classifiers, Stochastic Gradient Descent (SGD) optimizer, a deep learning (DL) based architecture, and lexicon-based methods. Although small in size, we find that the swear/vulgar lexicon is effective at identifying the vulgar language due to the high presence of some swear terms in Bengali social media. We observe that the performances of machine leanings (ML) classifiers are affected by the class distribution of the dataset. The DL-based BiLSTM (Bidirectional Long Short Term Memory) model yields the highest recall scores for identifying vulgarity in both datasets (i.e., in both original and class-balanced settings). Besides, the analysis reveals that vulgarity is highly correlated with negative sentiment in social media comments.


Author(s):  
Venessa Handiwinata ◽  
Budi Adelar Sukada

Millennial generation is the generation of births around 1980 to 2000 and in productive age. This generation has a problem, where they tend to be lazy, out of focus and narcissistic. There are 4 factors that cause it. First, this generation becomes depressed when in the workforce because there is no help from their parents and does not get what they want; second, this generation requires an addiction to the response of social media, which causes the absence of relations that improve between individuals; third, they do not last long in a company because they do not get what they want and want everything to be instant (inpatient); fourth, environmental participation that creates character of the individuals, where the environment at this time is more concerned with numbers than a community needs and only focus on short-term needs. In addition, the companies where they work don’t help/provide facilities to build cooperation and character development skills. Of all these problems, the millennial generation needs a facilities to develop their social skills, which can improve their ability to develop visions related to the development of their potential and innovation. Therefore, they need a character training center, with supporting facilities such as foodhall, shared work space, and gym facilities, where those supporting facilities can help the process of character training. This character training center has a concept that prioritizes togetherness and sociability with the "the c’s" method. AbstrakGenerasi millennial adalah generasi kelahiran sekitar tahun 1980 sampai dengan 2000 dan sedang dalam usia produktif. Generasi ini memiliki sebuah isu, dimana mereka cenderung malas, tidak fokus dan narsis. Terdapat 4 faktor penyebabnya. Pertama, generasi ini menjadi depresi saat di dunia kerja karena tidak adanya bantuan dari orangtua dan tidak mendapatkan apa yang mereka inginkan; kedua, generasi ini cenderung kecanduan akan respon dari media sosial, dimana hal tersebut menyebabkan tidak adanya relasi yang kuat antar individu; ketiga, mereka cenderung tidak bertahan lama dalam suatu perusahaan karena mereka merasa tidak mendapatkan apa yang mereka inginkan dan ingin semuanya serba instan (tidak sabaran); keempat, lingkungan hidup yang membentuk karakter dari individu, dimana lingkungan hidup pada saat ini lebih mementingkan angka dibandingkan kebutuhan masyarakat dan hanya memikirkan kebutuhan jangka pendek. Selain itu, perusahaan tempat mereka bekerja cenderung tidak membantu/menyediakan fasilitas untuk membangun skill kerjasama dan pembangunan karakter. Dari semua isu tersebut, generasi millennial membutuhkan sebuah fasilitas untuk mengembangkan social skills mereka, dimana hal tersebut dapat mempengaruhi mereka dalam pembentukan visi hidup yang berhubungan dalam pengembangan potensi dan inovasi mereka. Oleh sebab itu, mereka membutuhkan suatu Character Training Center, dengan fasilitas pendukung seperti foodhall, co-working space dan fasilitas gym, dimana fasilitas pendukung tersebut dapat membantu sebuah proses character training. Character Training Center ini memiliki konsep dimana mengutamakan togetherness and sociability dengan metode  “the c’s”.


2021 ◽  
Vol 18 (4) ◽  
pp. 21-35
Author(s):  
Wafa Ghardallou

The impact of social media usage on corporate performance has not been examined in the Saudi context. This paper aims to investigate the influence of social media, namely companies’ and CEOs’ involvement in Twitter and LinkedIn, on the profitability of Saudi Arabia listed firms. A dynamic panel estimation method is used to empirically assess this relationship. The study employs 120 firms listed on the Saudi Stock Exchange Tadawul from 2014 to 2017. Data are obtained from the companies’ annual reports. Statements of financial status as well as income statements are used to collect data on the dependent variable and control variables. The results show that having a LinkedIn official account by both the CEO and the company does not improve the enterprise performance. In contrast, companies that are active on Twitter will contribute to an increase in their short-term performance. CEOs who engage in Twitter via a high number of followers help to boost the performance of their companies in the long and short term. Hence, this paper recommends that Saudi firms should be aware that their performance could be increased by monitoring their presence on social networks and by having a strong intention to use these tools. AcknowledgmentsThis study was funded by the Deanship of Scientific Research at Princess Nourah bint Abdulrahman University through the Fast-track Research Funding Program.


2019 ◽  
Author(s):  
Jan Fichtner

During the last decades, institutional investors gained an ever more important position as managers of assets and owners of corporations. By demanding (short-term) shareholder value, some of them have driven the financialization of corporations and of the financial sector itself. This chapter first characterizes the specific roles that private equity funds, hedge funds, and mutual funds have played in this development. It then moves on to focus on one group of institutional investors that is rapidly becoming a pivotal factor for corporate control in many countries – the “Big Three” large passive asset managers BlackRock, Vanguard and State Street.


2017 ◽  
pp. 453-475
Author(s):  
Michael Batty ◽  
Andrew Hudson-Smith ◽  
Stephan Hugel ◽  
Flora Roumpani

This chapter introduces a range of analytics being used to understand the smart city, which depends on data that can primarily be understood using new kinds of scientific visualisation. We focus on short term routine functions that take place in cities which are being rapidly automated through various kinds of sensors, embedded into the physical fabric of the city itself or being accessed from mobile devices. We first outline a concept of the smart city, arguing that there is a major distinction between the ways in which technologies are being used to look at the short and long terms structure of cities, and we then focus on the shorter term, first examining the immediate visualisation of data through dashboards, then examining data infrastructures such as map portals, and finally introducing new ways of visualising social media which enable us to elicit the power of the crowd in providing and supplying data. We conclude with a brief focus on how new urban analytics is emerging to make sense of these developments.


2018 ◽  
Vol 20 (10) ◽  
pp. 3700-3719 ◽  
Author(s):  
Drew Margolin ◽  
Wang Liao

This study examines the organizational dynamics of social media crowds, in particular, the influence of a crowd’s emotional expression on its solidarity. To identify the relationship between emotions expressed and solidarity, marked by sustained participation in the crowd, the study uses tweets from a unique population of crowds—those tweeting about ongoing National Football League games. Observing this population permits the use of game results as quasi-random treatments on crowds, helping to reduce confounding factors. Results indicate that participation in these crowds is self-sustaining in the medium term (1 week) and can be stimulated or suppressed by emotional expression in a short term (1 hour), depending on the discrete emotion expressed. In particular, anger encourages participation while sadness discourages it. Positive emotions and anxiety have a more nuanced relationship with participation.


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