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Singapore Management University

2013

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Articles 31 - 43 of 43

Full-Text Articles in Finance and Financial Management

Enforcing Secure And Privacy-Preserving Information Brokering In Distributed Information Sharing, Fengjun Li, Bo Luo, Peng Liu, Dongwon Lee, Chao-Hsien Chu Jun 2013

Enforcing Secure And Privacy-Preserving Information Brokering In Distributed Information Sharing, Fengjun Li, Bo Luo, Peng Liu, Dongwon Lee, Chao-Hsien Chu

Research Collection School Of Computing and Information Systems

Today’s organizations raise an increasing need for information sharing via on-demand access. Information brokering systems (IBSs) have been proposed to connect large-scale loosely federated data sources via a brokering overlay, in which the brokers make routing decisions to direct client queries to the requested data servers. Many existing IBSs assume that brokers are trusted and thus only adopt server-side access control for data confidentiality. However, privacy of data location and data consumer can still be inferred from metadata (such as query and access control rules) exchanged within the IBS, but little attention has been put on its protection. In this …

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Diversification In Hedge Fund Portfolios, Melvyn Teo Apr 2013

Diversification In Hedge Fund Portfolios, Melvyn Teo

Research Collection BNP Paribas Hedge Fund Centre

We explore the diversification benefits of increasing the number of hedge funds in an investment portfolio. Conventional wisdom suggests that investors should construct a portfolio of 20 to 30 hedge funds in order to achieve a reasonably low portfolio variance. We show using Monte Carlo simulations that the marginal benefit of including an additional hedge fund in a fund portfolio diminishes significantly once the number of hedge funds increases beyond ten. Specifically, the annualized standard deviation of a fund portfolio diminishes from 16.55 percent to 7.40 percent as we increase the number of funds from one to ten. However, the …

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Ratings & Downgrades: Opportunities In A Spooked Market, Singapore Management University Apr 2013

Ratings & Downgrades: Opportunities In A Spooked Market, Singapore Management University

Perspectives@SMU

The ratings downgrades that are spooking many of the developed economies might hold promise for Asia in the long-term, although some of the region’s newer economies will need to get their political houses in order to get a credit rating, says Professor Annie Koh.

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Uncovering Hedge Fund Skill From The Portfolio Holdings They Hide, Vikas Agarwal, Wei Jiang, Yuehua Tang, Baozhong Yang Apr 2013

Uncovering Hedge Fund Skill From The Portfolio Holdings They Hide, Vikas Agarwal, Wei Jiang, Yuehua Tang, Baozhong Yang

Research Collection Lee Kong Chian School Of Business

This paper studies the “confidential holdings” of institutional investors, especially hedge funds, where the quarter-end equity holdings are disclosed with a delay through amendments to Form 13F and are usually excluded from the standard databases. Funds managing large risky portfolios with nonconventional strategies seek confidentiality more frequently. Stocks in these holdings are disproportionately associated with information-sensitive events or share characteristics indicating greater information asymmetry. Confidential holdings exhibit superior performance up to 12 months, and tend to take longer to build. Together the evidence supports private information and the associated price impact as the dominant motives for confidentiality.

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Can Us Economic Variables Predict Chinese Stock Market?, Jeremy C. Goh, Fuwei Jiang, Jun Tu, Yuchen Wang Apr 2013

Can Us Economic Variables Predict Chinese Stock Market?, Jeremy C. Goh, Fuwei Jiang, Jun Tu, Yuchen Wang

Research Collection Lee Kong Chian School Of Business

In the last few decades, we observed a significant increase in global economic activities and these activities may have an impact on both China’s economy and stock market. Given the potential impact, we empirically examine whether US economic variables are leading indicators of the Chinese stock market. Prior to China joining the World Trade Organization (WTO) in the end of 2001, we find no statistical relationship between US economic variables and the Chinese stock market returns. However, we find US economic variables have statistically significant predictive power for periods after China's admission into the WTO. In addition, we show that …

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Confidence Weighted Mean Reversion Strategy For Online Portfolio Selection, Bin Li, Steven C. H. Hoi, Peilin Zhao, Vivekanand Gopalkrishnan Mar 2013

Confidence Weighted Mean Reversion Strategy For Online Portfolio Selection, Bin Li, Steven C. H. Hoi, Peilin Zhao, Vivekanand Gopalkrishnan

Research Collection School Of Computing and Information Systems

Online portfolio selection has been attracting increasing attention from the data mining and machine learning communities. All existing online portfolio selection strategies focus on the first order information of a portfolio vector, though the second order information may also be beneficial to a strategy. Moreover, empirical evidence shows that relative stock prices may follow the mean reversion property, which has not been fully exploited by existing strategies. This article proposes a novel online portfolio selection strategy named Confidence Weighted Mean Reversion (CWMR). Inspired by the mean reversion principle in finance and confidence weighted online learning technique in machine learning, CWMR …

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A New Look At The Corporate Social-Financial Performance Relationship: The Moderating Roles Of Temporal And Inter-Domain Consistency In Corporate Social Performance, Heli Wang, Jaepil Choi Feb 2013

A New Look At The Corporate Social-Financial Performance Relationship: The Moderating Roles Of Temporal And Inter-Domain Consistency In Corporate Social Performance, Heli Wang, Jaepil Choi

Research Collection Lee Kong Chian School Of Business

The authors develop the argument that the establishment of good stakeholder relations is influenced not only by a firm’s having a high level of corporate social performance but also by its ability to deliver consistent social performance. Therefore, both level and consistency in corporate social performance should have significant financial implications. More specifically, the authors suggest that level and two types of consistency in corporate social performance—temporal consistency and interdomain consistency—interact positively to influence a firm’s financial performance. Using a sample of 622 firms and 2,365 firm-year observations based on the Kinder, Lydenberg, Domini, & Co. data, the authors found …

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Momentum Strategies In Futures Markets And Trend Following Funds, Akindynos-Nikolaos Baltas, Robert Kosowski Jan 2013

Momentum Strategies In Futures Markets And Trend Following Funds, Akindynos-Nikolaos Baltas, Robert Kosowski

Research Collection BNP Paribas Hedge Fund Centre

In this paper, we rigorously establish a relationship between time-series momentum strategies in futures markets and commodity trading advisors (CTAs) and examine the question of capacity constraints in trend-following investing. First, we construct a very comprehensive set of time-series momentum benchmark portfolios. Second, we provide evidence that CTAs follow time-series momentum strategies, by showing that such benchmark strategies have high explanatory power in the time-series of CTA index returns. Third, we do not find evidence of statistically significant capacity constraints based on two different methodologies and several robustness tests. Our results have important implications for hedge fund studies and investors.

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Not All That Glitters Is Gold: The Effect Of Attention And Blogs On The Investors' Investing Behaviors, Nan Hu, Yi Dong, Ling Liu, Lee J. Yao Jan 2013

Not All That Glitters Is Gold: The Effect Of Attention And Blogs On The Investors' Investing Behaviors, Nan Hu, Yi Dong, Ling Liu, Lee J. Yao

Research Collection School Of Computing and Information Systems

This article investigates the relationship between a firm’s visibility in blogspaces, termed blog exposure, and the cross-sectional stock returns. We show that blog exposure is fundamentally different from the traditional media coverage, and securities with low blog exposure earn higher returns than stocks with high blog exposure. We further illustrate that such an effect is more prominent for stocks with low institutional ownership. Contrary to traditional media coverage, the return premium associated with blog exposure cannot be explained by either the illiquidity hypothesis or the investor recognition hypothesis based on the rational-agent framework. Instead, our results suggest that blog effect …

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The Aftermarket Performance Of Initial Public Offerings, Chiyachantana N. Chiraphol, Theerawat Pinta, Nareerat Taechapiroontong, Anantaporn Wongkham Jan 2013

The Aftermarket Performance Of Initial Public Offerings, Chiyachantana N. Chiraphol, Theerawat Pinta, Nareerat Taechapiroontong, Anantaporn Wongkham

Research Collection Lee Kong Chian School Of Business

This paper examines the aftermarket performance of initial public offerings (IPOs) and explores the underpricing of IPOs in an Asian emerging equity market using a comprehensive sample of IPOs. Our findings suggest that there exist a significant underpricing. Specifically, new issues have been offered at an average market-adjusted discount of about 20%. The magnitude of IPO underpricing is significantly larger for large firms, older firms and firms with small offering size.

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Reference Point Adaptation And Disposition Effect, Chiraphol New Chiyachantana, Zongfei Yang Jan 2013

Reference Point Adaptation And Disposition Effect, Chiraphol New Chiyachantana, Zongfei Yang

Research Collection Lee Kong Chian School Of Business

This paper investigates the importance of reference point adaptation in the analysis of the disposition effect. We consider two exogenous factors pertinent to reference point adaptation: prior outcome and recent expectation of future outcome. We show that the incidence of the disposition effect varies in a manner consistent with reference point adaptation. Both prior outcome and recent expectation of future outcome affect the location of the reference point and have a large and significant impact on the incidence of the disposition effect. First, the disposition effect can largely be explained by investors’ inability to sufficiently adapt the reference point in …

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The Effect Of Information Disclosure On Information Asymmetry, Chiraphol New Chiyachantana, Neeranuch Nuengwang, Nareerat Taechapiroontong, Pakpoom Thanarung Jan 2013

The Effect Of Information Disclosure On Information Asymmetry, Chiraphol New Chiyachantana, Neeranuch Nuengwang, Nareerat Taechapiroontong, Pakpoom Thanarung

Research Collection Lee Kong Chian School Of Business

This study investigates the relation among information disclosure, firm characteristics and information asymmetry. The authors find evidence consistent with the notion that increasing corporate disclosure and transparency reduces the asymmetric information between informed and uninformed investors. The findings indicate a strong relation between firm characteristics and level of information disclosure. Larger firms, firms with high growth opportunity and superior performance are associated with higher level of information disclosure. With respect to type of information, large firms, firms with superior operating performance, high growth opportunity are likely to disclose the investment and structural change as well as legal and miscellaneous information. …

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Firm Strategy And The Internet In U.S. Commercial Banking, K. H. Goh, Robert J. Kauffman Jan 2013

Firm Strategy And The Internet In U.S. Commercial Banking, K. H. Goh, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

As information technology (IT) becomes more accessible, sustaining any competitive advantage from it becomes challenging. This has caused some critics to dismiss IT as a less valuable resource. We argue that, in addition to being able to generate strategic advantage, IT should also be viewed as a strategic necessity that prevents competitive disadvantage in rapidly changing business environments. We test a set of hypotheses on strategic advantage and strategic necessity in the context of Internet banking investments among the entire population of the United States Federal Deposit Insurance Corporation (FDIC) banks from 2003 to 2005. We seek to understand whether …

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