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Full-Text Articles in Business

Determinants Of Intra-Day Stock Price Change And Asymmetric Information, Christopher Hian Ann Ting Dec 2005

Determinants Of Intra-Day Stock Price Change And Asymmetric Information, Christopher Hian Ann Ting

Research Collection Lee Kong Chian School Of Business

This paper presents a synthesized model of asymmetric information. An empirical analysis of more than 1,400 NYSE common stocks shows that trade direction is more important than volume in revealing the asymmetry. There is also evidence to suggest that signed duration reflects informed trading activity. We use the proposed measure of information asymmetry to study daily changes in the level of informed trading and find that earnings announcements narrow the information gap between the informed and the uninformed. On average, information asymmetry is largest at the beginning of the trading day and it decreases monotonically toward the closing bell. More …


Calibration Of The Structural Model Of Corporate Bond Spreads, Lerner Peter, Chunchi Wu Oct 2005

Calibration Of The Structural Model Of Corporate Bond Spreads, Lerner Peter, Chunchi Wu

Research Collection Lee Kong Chian School Of Business

No abstract provided.


The Choice Of Trading Venue And Relative Price Impact Of Institutional Trading: Adrs Versus The Underlying Securities In Their Local Markets, Chakravarty Sugato, Christine X. Jiang, Chiraphol New Chiyachantana Oct 2005

The Choice Of Trading Venue And Relative Price Impact Of Institutional Trading: Adrs Versus The Underlying Securities In Their Local Markets, Chakravarty Sugato, Christine X. Jiang, Chiraphol New Chiyachantana

Research Collection Lee Kong Chian School Of Business

No abstract provided.


The Implied Jump Risk Of Libor Rates, Kian Guan Lim, Christopher Ting, Mitch Warachka Oct 2005

The Implied Jump Risk Of Libor Rates, Kian Guan Lim, Christopher Ting, Mitch Warachka

Research Collection Lee Kong Chian School Of Business

This paper examines implied parameters from options on LIBOR futures. Jump-diffusion models are found to offer superior in-sample and out-of-sample performance when compared to their pure diffusion counterpart. The need to incorporate stochastic jump magnitudes into LIBOR dynamics is also documented. In addition, empirical evidence reveals that the jump component in LIBOR rates is important for pricing their derivatives. Furthermore, variation in jump risk often coincides with Federal Open Market Committee (FOMC) decisions and a small subset of macroeconomic announcements.


A Dynamic Model For The Forward Curve, Choong Tze Chua, Foster Dean, Krishna Ramaswamy, Robert Stine Aug 2005

A Dynamic Model For The Forward Curve, Choong Tze Chua, Foster Dean, Krishna Ramaswamy, Robert Stine

Research Collection Lee Kong Chian School Of Business

This paper develops and estimates a dynamic arbitrage-free model for the current forward curve as the sum of (i) an unconditional component, (ii) a maturity-specific component and (iii) a date-specific component. The model combines features of the Preferred Habitat model,the Expectation Hypothesis and affine yield curve models. We show how to construct alternative parametric examples of the three components from a sum of exponential functions, verify that the resulting forward curves satisfy the Heath-Jarrow-Morton conditions, and derive the risk-neutral dynamics for the purpose of pricing interest rate derivatives. We select a model from alternative affine examples that are fitted to …


Profiting From Mean-Reverting Yield Curve Trading Strategies, Choong Tze Chua, Winston T. H. Koh, Krishna Ramaswamy Aug 2005

Profiting From Mean-Reverting Yield Curve Trading Strategies, Choong Tze Chua, Winston T. H. Koh, Krishna Ramaswamy

Research Collection Lee Kong Chian School Of Business

A large class of fixed income trading strategies focuses on opportunities offered by the interest rate term structure. This paper studies a set of yield curve trading strategies that are based on the view that the yield curve mean-reverts to an unconditional curve. These mean-reverting trading strategies exploit deviations in the level, slope and curvature of the yield curve from historical norms. We consider cash-neutral trades with one-month holding periods. Some mean-reverting strategies were found to be highly profitable, and outperform, on a risk-adjusted basis before transaction costs, alternative strategies of an investment in the Lehman Brothers Bond index (by …


Implied Measures Of Relative Fund Performance, Steve Hogan, Mitchell Craig Warachka Aug 2005

Implied Measures Of Relative Fund Performance, Steve Hogan, Mitchell Craig Warachka

Research Collection Lee Kong Chian School Of Business

We evaluate the relative performance of funds by conditioning their returns on the cross-section of portfolio characteristics across fund managers. Our implied procedure circumvents the need to specify benchmark returns or peer funds. Instead, fund-specific benchmarks for measuring selection and market timing ability are constructed. This technique is robust to herding as well as window dressing and mitigates survivorship bias. Empirically, the conditional information contained in portfolio weights defined by industry sectors, assets and geographical regions is critically important to the assessment of fund management. For each set of portfolio characteristics, we identify funds with success at either selecting securities …


On The Intertemporal Risk-Return Relation: A Bayesian Model Comparison Perspective, Leping Wang Jul 2005

On The Intertemporal Risk-Return Relation: A Bayesian Model Comparison Perspective, Leping Wang

Research Collection Lee Kong Chian School Of Business

The existing empirical studies indicate that inferences on the intertemporal relation between expected return and volatility are highly sensitive to empirical specifications of return dynamics. Glosten, Jagannathan, and Runkle (1993) attempt to resolve this confusing situation by examining several generalizations of the standard GARCH-M model. They conclude a negative risk-return relation solely based on the models that are identified in the first step through a variety of diagnostic tests as relatively “better” models. However, it has not been shown in their study whether the evidence supporting their first-step model selection decision is significant or not. To the extent the strength …


Corporate Divestitures And Spinoffs In Singapore, Francis Koh, Winston T. H. Koh, Benedict S. K. Koh Mar 2005

Corporate Divestitures And Spinoffs In Singapore, Francis Koh, Winston T. H. Koh, Benedict S. K. Koh

Research Collection Lee Kong Chian School Of Business

This paper discusses the different forms of corporate divestitures, the motives for this corporate activity, and the empirical findings about their economic outcomes. A sample of corporate divestitures is also used to identify the main motivations in the Singapore context. We conclude that divestitures are carried out to achieve operational efficiency and gain incremental profitability and liquidity. Using share price data around the event-dates, we show that announcements of divestitures generally lead to significant increases in the returns of the parent company. The positive abnormal returns are related to the relative size of the divestitures and the computed accounting gains. …


Is Stellar Hedge Fund Performance For Real?, Robert Kosowski, Narayan Y. Naik, Melvyn Teo Feb 2005

Is Stellar Hedge Fund Performance For Real?, Robert Kosowski, Narayan Y. Naik, Melvyn Teo

Research Collection Lee Kong Chian School Of Business

We apply a robust bootstrap to evaluate the performance of a large universe of hedge funds. Our bootstrap estimates indicate that the performance of the top hedge funds cannot be attributed to chance alone. This is true even after adjusting for back fill bias, serial correlation, and structural breaks. Also, we find that hedge fund alpha differences persist over three year horizons. However, an investment strategy designed around this will run into difficulties as the persistence is often confined to small funds that are effectively closed to new inflows. Moreover, Bayesian estimates suggest that standard alphas may be overestimated by …


Statistical Arbitrage And Market Efficiency: Enhanced Theory, Robust Tests And Further Applications, Robert A. Jarrow, Melvyn Teo, Yiu Kuen Tse, Mitch Warachka Feb 2005

Statistical Arbitrage And Market Efficiency: Enhanced Theory, Robust Tests And Further Applications, Robert A. Jarrow, Melvyn Teo, Yiu Kuen Tse, Mitch Warachka

Research Collection Lee Kong Chian School Of Business

Statistical arbitrage enables tests of market efficiency which circumvent the joint-hypotheses dilemma. This paper makes several contributions to the statistical arbitrage framework. First, we enlarge the set of statistical arbitrage opportunities in Hogan, Jarrow, Teo, and Warachka (2004) to avoid penalizing incremental trading profits with positive deviations from their expected value. Second, we provide a statistical methodology to remedy the lack of consistency and statistical power in their Bonferroni approach. In addition, this procedure allows for autocorrelation and non-normality in trading profits. Third, we apply our tests to a wide range of trading strategies based on stock momentum, stock value, …