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Author: Shimon Kogan
Publisher:
ISBN:
Category :
Languages : en
Pages : 67
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Book Description
We study fake news in financial markets using a novel dataset from an undercover SEC investigation. Our setting measures both the direct and indirect effects of market manipulation. Fake articles directly induce abnormal trading activity and increase price volatility, but in addition, the awareness of fake news from the SEC investigation indirectly affects legitimate articles, causing market participants to discount all news from these platforms. These spillover consequences significantly reduce the social network's impact on information dissemination, trading, and prices. The results are particularly acute among small firms with high retail ownership and for the most circulated articles. The equilibrium response of consumers and producers of news on these networks is consistent with models of trust, providing novel evidence on the importance of social capital for financial activity.
Author: Shimon Kogan
Publisher:
ISBN:
Category :
Languages : en
Pages : 67
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Book Description
We study fake news in financial markets using a novel dataset from an undercover SEC investigation. Our setting measures both the direct and indirect effects of market manipulation. Fake articles directly induce abnormal trading activity and increase price volatility, but in addition, the awareness of fake news from the SEC investigation indirectly affects legitimate articles, causing market participants to discount all news from these platforms. These spillover consequences significantly reduce the social network's impact on information dissemination, trading, and prices. The results are particularly acute among small firms with high retail ownership and for the most circulated articles. The equilibrium response of consumers and producers of news on these networks is consistent with models of trust, providing novel evidence on the importance of social capital for financial activity.
Author: Bianca Petcu
Publisher:
ISBN:
Category :
Languages : en
Pages : 29
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Book Description
There are a few things that the United States prides itself on: liberty, democracy, and a free market system. Since its inception, the financial market has defined the financial market has defined the United States' position as a global leader. Therefore, balancing issues involving both the First Amendment and the free market system can be complex. On April 10, 2017, the Securities Exchange Commission ("SEC") filed twenty-seven complaints for fraudulent promotion of stock against stock promotion firms and holding companies. The holding companies paid writers to generate hundreds of optimistic articles about public company clients while concealing from investors that these were paid promotions. Out of the twenty-seven complaints, one company, Lidingo Holdings LLC ("Lidingo Holdings"), has garnered the most publicity. Beginning in 2010, Lidingo Holdings allegedly disseminated fake or hyperbolic information about stock options to either inflate or denigrate buyers' interest. The SEC mandates that stock promoters disclose their relationship with holding companies. Failure to disclose leads stockholders to believe the source was an independent researcher. This is where the First Amendment intersects with the financial markets. This Comment will focus on how market manipulation and the First Amendment could affect how the U.S. District Court for the Southern District of New York will decide SEC v. Lidingo Holdings, LLC "fake news" case. Section II will provide a primer of the history and evolution of market manipulation schemes, describe the SEC and its regulatory powers, look at the historical strength of the First Amendment, and introduce cases that can be used as precedent going forward. Section III will analyze prior cases and apply those rulings to Lidingo Holdings, to argue that the SEC should use a similar justification that the Federal Trade Commission ("FTC") uses for disseminating harmful commercial speech. Finally, Section IV will recommend that the court find the speech in Lidingo Holdings constitutes commercial speech, and further, that the SEC should implement a whistleblower program to regulate fake news, as well as follow the FTC's enforcement actions when dealing with fake news in the commercial speech context.
Author: Jonathan Clarke
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
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Book Description
Does fake news in financial markets attract more investor attention and have a significant impact on stock prices? We use the SEC crackdown of stock promotion schemes in April 2017 to examine investor attention and the stock price reaction to fake news articles. Using data from Seeking Alpha, we find that fake news stories generate significantly more attention than a control sample of legitimate articles. We find no evidence that article commenters can detect fake news and Seeking Alpha editors have only modest ability to detect fake news. However, we show that machine learning algorithms can successfully identify fake news from linguistic features of the article. The stock market appears to price fake news correctly. While abnormal trading volume increases around the release of fake news, the increase is less than that observed for legitimate news. The stock price reaction to fake news is discounted when compared to legitimate news articles.
Author: Pankaj Sharma
Publisher: Taylor & Francis
ISBN: 1000327442
Category : Computers
Languages : en
Pages : 336
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Book Description
Coronavirus News, Markets and AI explores the analysis of unstructured data from coronavirus-related news and the underlying sentiment during its real-time impact on the world and on global financial markets, in particular. In an age where information - both real and fake - travels in the blink of an eye and significantly alters market sentiment daily, this book is a blow by blow account of economic impact of the COVID-19 pandemic. The volume: Details how AI driven machines capture, analyse and score relevant on-ground news sentiment to analyse the dynamics of market sentiment, how markets react to good or bad news across ‘short term’ and ‘long term’; Investigates what have been the most prevalent news sentiment during the pandemic, and its linkages to crude oil prices, high profile cases, impact of local news, and even the impact of Trump’s policies; Discusses the impact on what people think and discuss, how the COVID-19 crisis differs from the Global Financial Crisis of 2008, the unprecedented disruptions in supply chains and our daily lives; Showcases how easy accessibility to big data methods, cloud computing, and computational methods and the universal applicability of these tool to any topic can help analyse extract the related news sentiment in allied fields. Accessible, nuanced and insightful, this book will be invaluable for business professionals, bankers, media professionals, traders, investors, and investment consultants. It will also be of great interest to scholars and researchers of economics, commerce, science and technology studies, computer science, media and culture studies, public policy and digital humanities.
Author: Lawrence R. Klein
Publisher: John Wiley & Sons
ISBN: 1118236866
Category : Business & Economics
Languages : en
Pages : 403
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Book Description
A guide to curbing monopoly power in stock markets Engaging and informative, Regulating Competition in Stock Markets skillfully analyzes the impact of the recent global financial crisis on health and happiness, and uses this opportunity to put regulatory systems in perspective. Happiness is lost because of emotional and physical health deterioration resulting from the crisis. Therefore, the authors conclude that financial crisis prevention should be the focus of public policy. This book is the most comprehensive study so far on potential risks to the stock market, especially various forms of market manipulation that lead to mania and eventual crisis. Based on litigation cases from international stock markets, and borrowing multidisciplinary findings in the fields of finance, economics, accounting, media studies, criminology, legal studies, psychology, and medicine, this book is the first to provide thorough micro-level regulatory proposals rooted in financial reality. By focusing on securities trading, they apply antitrust measures to limiting monopolistic power that is used for the manipulation of investors' perception and monopolistic profit. These proposals are quantifiable, adjustable, inexpensive, and can be easily implemented by any securities regulating agency for real-time oversight and daily operations. The recommendations found here are intended to improve the fairness and transparency of the financial markets, thereby perfecting the market competition, protecting investors, stabilizing the market, and preventing crises Explores how avoiding crises can to contribute to a more scientific, health aware, and civilized economic and social development Written by a team of authors who have extensive experience in this dynamic field, including Nobel Laureate Lawrence R. Klein Since the founding of the first, organized stock exchange in Amsterdam 400 years ago, no systematic economic research results on stock markets have been implemented in stock market regulation around the world. Regulating Competition in Stock Markets aims to fill this void.
Author: Federico Cecconi
Publisher: Springer Nature
ISBN: 3031265181
Category : Computers
Languages : en
Pages : 140
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Book Description
This book is divided into two parts, the first of which describes AI as we know it today, in particular the Fintech-related applications. In turn, the second part explores AI models in financial markets: both regarding applications that are already available (e.g. the blockchain supply chain, learning through big data, understanding natural language, or the valuation of complex bonds) and more futuristic solutions (e.g. models based on artificial agents that interact by buying and selling stocks within simulated worlds). The effects of the COVID-19 pandemic are starting to show their financial effects: more companies in a liquidity crisis; more unstable debt positions; and more loans from international institutions for states and large companies. At the same time, we are witnessing a growth of AI technologies in all fields, from the production of goods and services, to the management of socio-economic infrastructures: in medicine, communications, education, and security. The question then becomes: could we imagine integrating AI technologies into the financial markets, in order to improve their performance? And not just limited to using AI to improve performance in high-frequency trading or in the study of trends. Could we imagine AI technologies that make financial markets safer, more stable, and more comprehensible? The book explores these questions, pursuing an approach closely linked to real-world applications. The book is intended for three main categories of readers: (1) management-level employees of companies operating in the financial markets, banks, insurance operators, portfolio managers, brokers, risk assessors, investment managers, and debt managers; (2) policymakers and regulators for financial markets, from government technicians to politicians; and (3) readers curious about technology, both for professional and private purposes, as well as those involved in innovation and research in the private and public spheres.
Author: Richard M. Levich
Publisher: McGraw-Hill/Irwin
ISBN: 9780071153645
Category : International finance
Languages : en
Pages : 663
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Book Description
Author: Andrei Shleifer
Publisher: OUP Oxford
ISBN: 0191606898
Category : Business & Economics
Languages : en
Pages : 295
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Book Description
The efficient markets hypothesis has been the central proposition in finance for nearly thirty years. It states that securities prices in financial markets must equal fundamental values, either because all investors are rational or because arbitrage eliminates pricing anomalies. This book describes an alternative approach to the study of financial markets: behavioral finance. This approach starts with an observation that the assumptions of investor rationality and perfect arbitrage are overwhelmingly contradicted by both psychological and institutional evidence. In actual financial markets, less than fully rational investors trade against arbitrageurs whose resources are limited by risk aversion, short horizons, and agency problems. The book presents and empirically evaluates models of such inefficient markets. Behavioral finance models both explain the available financial data better than does the efficient markets hypothesis and generate new empirical predictions. These models can account for such anomalies as the superior performance of value stocks, the closed end fund puzzle, the high returns on stocks included in market indices, the persistence of stock price bubbles, and even the collapse of several well-known hedge funds in 1998. By summarizing and expanding the research in behavioral finance, the book builds a new theoretical and empirical foundation for the economic analysis of real-world markets.
Author: Sinan Aral
Publisher: Currency
ISBN: 0593240405
Category : Business & Economics
Languages : en
Pages : 417
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Book Description
A landmark insider’s tour of how social media affects our decision-making and shapes our world in ways both useful and dangerous, with critical insights into the social media trends of the 2020 election and beyond “The book might be described as prophetic. . . . At least two of Aral’s three predictions have come to fruition.”—New York NAMED ONE OF THE BEST BOOKS OF THE YEAR BY WIRED • LONGLISTED FOR THE PORCHLIGHT BUSINESS BOOK AWARD Social media connected the world—and gave rise to fake news and increasing polarization. It is paramount, MIT professor Sinan Aral says, that we recognize the outsize effect social media has on us—on our politics, our economy, and even our personal health—in order to steer today’s social technology toward its great promise while avoiding the ways it can pull us apart. Drawing on decades of his own research and business experience, Aral goes under the hood of the most powerful social networks to tackle the critical question of just how much social media actually shapes our choices, for better or worse. He shows how the tech behind social media offers the same set of behavior influencing levers to everyone who hopes to change the way we think and act—from Russian hackers to brand marketers—which is why its consequences affect everything from elections to business, dating to health. Along the way, he covers a wide array of topics, including how network effects fuel Twitter’s and Facebook’s massive growth, the neuroscience of how social media affects our brains, the real consequences of fake news, the power of social ratings, and the impact of social media on our kids. In mapping out strategies for being more thoughtful consumers of social media, The Hype Machine offers the definitive guide to understanding and harnessing for good the technology that has redefined our world overnight.
Author: Howard Davies
Publisher: John Wiley & Sons
ISBN: 0745688322
Category : Political Science
Languages : en
Pages : 136
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Book Description
The Global Financial Crisis overturned decades of received wisdomon how financial markets work, and how best to keep them in check.Since then a wave of reform and re-regulation has crashed overbanks and markets. Financial firms are regulated as neverbefore. But have these measures been successful, and do they go farenough? In this smart new polemic, former central banker andfinancial regulator, Howard Davies, responds with a resounding‘no’. The problems at the heart of the financial crisisremain. There is still no effective co-ordination of internationalmonetary policy. The financial sector is still too big and,far from protecting the economy and the tax payer, recentgovernment legislation is exposing both to even greater risk. To address these key challenges, Davies offers a radicalalternative manifesto of reforms to restore market discipline andcreate a safer economic future for us all.
