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Author: Joël Peress
Publisher:
ISBN:
Category : Journalism, Commercial
Languages : en
Pages : 56
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Book Description
The media are increasingly recognized as key players in financial markets. I investigate their causal impact on trading and price formation by examining national newspaper strikes in several countries. Trading volume falls 12% on strike days. The dispersion of stock returns and their intraday volatility are reduced by 7%, while aggregate returns are unaffected. Moreover, an analysis of return predictability indicates that newspapers propagate news from the previous day. These findings demonstrate that the media contribute to the efficiency of the stock market by improving the dissemination of information among investors and its incorporation into stock prices.
Author: Joël Peress
Publisher:
ISBN:
Category : Journalism, Commercial
Languages : en
Pages : 56
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Book Description
The media are increasingly recognized as key players in financial markets. I investigate their causal impact on trading and price formation by examining national newspaper strikes in several countries. Trading volume falls 12% on strike days. The dispersion of stock returns and their intraday volatility are reduced by 7%, while aggregate returns are unaffected. Moreover, an analysis of return predictability indicates that newspapers propagate news from the previous day. These findings demonstrate that the media contribute to the efficiency of the stock market by improving the dissemination of information among investors and its incorporation into stock prices.
Author: Thomas Schuster
Publisher: Lexington Books
ISBN: 9780739113318
Category : Business & Economics
Languages : en
Pages : 170
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Book Description
In recent years there has been a great influx of sources for business and financial news, yet the hope that this financial media boom would lead to the democratization of the financial markets has not been realized. Thomas Schuster's The Markets and the Media explores why the expansion of economic communication has proven to be of only limited benefit, arguing that the financial media boom has had negative repercussions resulting in substantial costs for the individual as well as the systemic level.
Author: Aaron Paul Burt
Publisher:
ISBN:
Category : Stock exchanges
Languages : en
Pages : 153
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Book Description
My dissertation is a compilation of three separate research studies that explore how information diffuses in financial markets. The first chapter examines how non-uniform information diffusion through distinct networks segments U.S. financial markets. Using changes in newspaper ownership networks, I document that a network link between different geographic areas leads to increased comovement of turnover and returns between stocks headquartered in those areas. Consistent with delayed content sharing within a network, the largest increase in comovement is observed using weekly data. I show that the network-driven comovement is not driven by fundamentals and is weaker for large firms with high institutional ownership and decreases over time. I also document that a network link causes price levels of linked stocks to become more similar. My findings show that segmented information networks lead to segmented financial markets with implications for market efficiency, home bias, and the effects of changes in the U.S. media landscape on financial markets. The second chapter shows that investors do not fully monitor the information about directors available in the past prices of firms within the network the directors oversee. A long-short portfolio using this information yields an annual alpha of 6.6%. This predictability is limited to when firms share a director and is not driven by industry or previously identified economic links between firms. The predictability is largest in the long end, when small firms predict big firms, and when information on shared directors is costlier to obtain. Trading by the shared directors is a key mechanism: filtering on their trades increases the annual alpha to 15%. The third chapter studies the econometric properties of a commonly used network-based measure of information diffusion between economically linked firms. Previous studies use this measure to document failures of market efficiency with price discovery requiring up to a year. The measure is constructed as the long-short alpha of portfolios formed sorting on the preceding returns of firms economically linked to portfolio firms. We show that correlated alphas between linked firms bias these measures. Existing studies have monthly biases as large as a factor of two. This bias creates predictability even after price discovery completes. Subtracting the predicted return from the sorting firms' returns removes this bias. Eliminating this bias reveals a more efficient market than previously documented: price discovery takes one month.
Author: Ali R. Tafti
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Do spikes in Twitter chatter about specific firms precede unusual stock market trading activity for those firms, within a resolution of ten to forty minutes? If so, Twitter activity may provide useful information about impending financial market activity in real-time. We study the real-time relationship between chatter on Twitter and the stock trading activity of 96 firms listed in the Nasdaq 100, during 193 days of trading in the period from May 21, 2012 to September 18, 2013. We adopted a quasi-experimental design, in which we identified observations featuring firm-specific spikes in Twitter activity, and randomly assigned each observation to a ten-minute increment matching on the firm and a number of repeating time indicators. We examine the extent that unusual levels of chatter on Twitter about a firm portend an oncoming surge of trading of its stock within the hour, over and above what would normally be expected for the stock for that time of day and day of week. We also compare the findings from our explanatory model to the predictive power of Tweets. Our results suggest that, through monitoring of chatter on Twitter about firms listed on the Nasdaq 100, identifying firm-specific spikes in Twitter activity affords a non-trivial degree of foresight into oncoming surges in trading volume.
Author: Armin Beverungen
Publisher: Meson Press
ISBN: 9781517906467
Category : Marketing
Languages : en
Pages : 144
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Book Description
A media theory of markets Markets abound in media--but a media theory of markets is still emerging. Anthropology offers media archaeologies of markets, and the sociology of markets and finance unravels how contemporary financial markets have witnessed a media technological arms race. Building on such work, this volume brings together key thinkers of economic studies with German media theory, describes the central role of the media specificity of markets in new detail and inflects them in three distinct ways. Nik-Khah and Mirowski show how the denigration of human cognition and the concomitant faith in computation prevalent in contemporary market-design practices rely on neoliberal conceptions of information in markets. Schröter confronts the asymmetries and abstractions that characterize money as a medium and explores the absence of money in media. Beverungen situates these inflections and gathers further elements for a politically and historically attuned media theory of markets concerned with contemporary phenomena such as high-frequency trading and cryptocurrencies.
Author: Liang Ding
Publisher:
ISBN:
Category : Financial crises
Languages : en
Pages : 101
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Book Description
Financial markets demonstrate a large degree of comovement. Such comovement is important for a variety of investment and risk management decisions. This research is motivated by 2007-2008 financial turmoil. During the turmoil period, the markets co-move locally and globally, making it difficult for investors to hedge the risk. Although the cross market linkage is a topic of ongoing interest to researchers and practitioners, it seems that we are still in the preliminary stage to fully understand the cross market linkages, and even far away to prevent the crisis transmitting across markets. This dissertation attempts to answer two main questions, what are the major channels that link financial markets, and how those channels change in different periods. In this study, we examine two empirical tests on domestic markets and international markets linkage respectively. The first test focuses on the financial markets within U.S, and treats the stock, bond, CDS, stock option markets as a closely connected network. From 2004-2009, our tests find no evidence that static cross-market linkage becomes stronger in the crisis period than in the normal period. In terms of dynamic linkage, we find the information flow pattern become stronger in the crisis period. And we identify the role of volatility and liquidity in the financial network. The second test focuses on the international markets linkage using the derivatives market information. We use a family of volatility indexes from 1999-2009, including VIX, VSTOXX, VDAXNEW, VXJ, and VSMI, to filter the information diffusion through other channels. Therefore, the tests contribute a unique perspective to find out how the investors expect the interaction of the near-term volatility across U.S. and international markets. Our tests provide evidence that the linkages across corresponding markets are stable in the past decade. And we also find U.S. market plays a stronger role in a two way information flow structure with other markets through volatility linkage. The dissertation contributes a comprehensive research on the financial network linkage. The results obtained in this dissertation will improve our understanding of information diffusion process across financial markets and are expected to fill significant gaps in the current literature.
Author: Aaron Paul Burt
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Paul Latimer
Publisher: Springer
ISBN: 9783319094601
Category : Law
Languages : en
Pages : 238
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Book Description
This book provides a unique comparative and global analysis of the regulation of disclosure in financial (securities) markets. It is written by two authors who represent both the new world (Australia) and the old world (Germany). The authors present their research in the global business context, with legal and regulatory perspectives including some references from Africa, Asia, the Middle East and South America. After every “boom” and “bust”, legislators pass new disclosure legislation, often in a heated environment fuelled by politics and the media. Little regard is paid to existing regulation or the lessons learned from earlier regulation. The result is the continuing enactment of redundant and overlapping disclosure laws. Since financial markets are often described as markets for information, the failure to ensure disclosure is at the heart of financial services regulation. This book argues that the solution to the failure of disclosure is a brief, easily understood, principles-based, plain English safety-net amendment to statute law such as “you must keep the financial market fully informed”, a measure that would support effective mandatory continuous disclosure of information to financial markets. This book examines the reasons for disclosure regulation, and how the efficient operation of financial markets is dependent on disclosure. It examines the adequacy of common law and civil law concerning broker/client disclosure, and concludes that industry licensing in itself fails to keep the market informed. While recognizing the failures of securities commissions to achieve good disclosure in financial markets, it confirms the effectiveness of coregulation of disclosure by a commission with the support of the financial markets (such as the stock exchange). Coregulation builds on financial market self-regulation, and is best described in the words of one-time SEC Chairman William O. Douglas, who, in the 1930s, described it as a shotgun behind the door.
Author: Carlo Raimondo
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Book Description
An increasing stream of literature about the role of the media in finance has been developed in recent years. The textual analysis techniques and the increased availability of data have created the possibility of going deeper into an analysis of soft information, including newspaper articles and other media-generated content. This paper aims at putting forward knowledge about the media's role in finance, leveraging on a large variety of research from the field of finance, accounting, management, and economics. The goal and the contribution of this paper are to provide a response to these queries by leveraging on existing, but often unconnected, literature.
Author: Adam Marszk
Publisher: Academic Press
ISBN: 0128136391
Category : Business & Economics
Languages : en
Pages : 228
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Book Description
Exchange-Traded Funds in Europe provides a single point of reference on a diverse set of regional ETF markets, illuminating the roles ETFs can play in risk mitigation and speculation. Combining empirical data with models and case studies, the authors use diffusion models and panel/country-specific regressions-as well as graphical and descriptive analyses- to show how ETFs are more than conventional, passive investments. With new insights on how ETFs can improve market efficiency and how investors can benefit when using them as investment tools, this book reveals the complexity of the world's second largest ETF market and the ways that ETFs are transforming it. Identifies benefits and threats that ETFs bring to European financial markets Combines empirical data with a full, in-depth analysis of the topic and the special characteristics of Europe Examines the diffusion patterns of innovative financial products, the role of ICT, and the consequent effects of ETFs on the underlying European stock markets
