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Research Collection Lee Kong Chian School Of Business

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Full-Text Articles in Finance and Financial Management

Joint Variance Ratio Tests Of The Martingale Hypothesis For Exchange Rates, Wai Mun Fong, Benedict Seng Kee Koh, Sam Ouliaris Jan 1997

Joint Variance Ratio Tests Of The Martingale Hypothesis For Exchange Rates, Wai Mun Fong, Benedict Seng Kee Koh, Sam Ouliaris

Research Collection Lee Kong Chian School Of Business

There is considerable interest in whether exchange rates behave like martingales. Liu and He tested the martingale hypothesis for exchange rates using the variance-ratio methodology of Lo and MacKinlay. They found that exchange rates have violated the martingale property since the inception of floating rates in 1973. Liu and He did not consider the joint implications of their tests, however. In this article, we reassess the martingale hypothesis for exchange rates using the joint tests developed by Hochberg and by Richardson and Smith. Contrary to the findings of Liu and He, the joint tests indicate that the martingale model worked …

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The Information Content Of Fdi Announcements: Evidence From An Emerging Market, David K. Ding, Qian Sun Jan 1997

The Information Content Of Fdi Announcements: Evidence From An Emerging Market, David K. Ding, Qian Sun

Research Collection Lee Kong Chian School Of Business

This study examines the stock return responses to the announcements of foreign direct investments (FDI) by Singaporean companies. A standard event study methodology is used to ascertain the abnormal returns around the announcement day (day 0). The study covers the period from 1989 to 1994 with a sample size of 70 events. The announcement effect is positive and significant around the announcement day. The average abnormal return is 0.4913 percent on day 0, and the two-day (days 0 and 1) cumulative abnormal return is 0.9642 percent. However, the abnormal return is unequally distributed across the sample firms. A cross-sectional analysis …

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Semiparametric Exploration Of Long Memory In Stock Prices, David K. C. Lee, Peter M. Robinson Mar 1996

Semiparametric Exploration Of Long Memory In Stock Prices, David K. C. Lee, Peter M. Robinson

Research Collection Lee Kong Chian School Of Business

New or modified methods for semiparametric analysis of fractional long memory in time series are described and applied to twenty-six stock prices and two stock indices. Evidence is found that some, but not all, of the stocks have long memory, while one of the indices exhibits mean reversion.

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The Vehicle Quota System In Singapore: An Assessment, Winston T. H. Koh, David K. C. Lee Jan 1994

The Vehicle Quota System In Singapore: An Assessment, Winston T. H. Koh, David K. C. Lee

Research Collection Lee Kong Chian School Of Business

This paper reviews the developments since the vehicle quota system was introduced in Singapore in May 1990. We discuss the bidding strategies for the certificates of entitlement (COE) under both the transferable and nontransferable auctions, as well as the equity of the present system and the desirability of transferable COEs. We argue that the COE auction should be made discriminatory and propose an alternative system of COE auction that we feel is both equitable and at the same time politically acceptable. We also survey developments in market competition in the car industry.

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Is A Bond Rating Downgrade Bad News, Good News, Or No News For Stockholders?, Choo Yong, Jeremy Goh, Louis H. Ederington Dec 1993

Is A Bond Rating Downgrade Bad News, Good News, Or No News For Stockholders?, Choo Yong, Jeremy Goh, Louis H. Ederington

Research Collection Lee Kong Chian School Of Business

We examine the reaction of common stock returns to bond rating changes. While recent studies find a significant negative stock response to downgrades, we argue that this reaction should not be expected for all downgrades because: (1) some rating changes are anticipated by market participants and (2) downgrades because of an anticipated move to transfer wealth from bondholders to stockholders should be good news for stockholders. We find that downgrades associated with deteriorating financial prospects convey new negative information to the capital market, but that downgrades due to changes in firms' leverage do not.

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Share-Price-Changes-Volume Relation On The Singapore Equity Market, David K. C. Lee, Mohamed Ariff Dec 1993

Share-Price-Changes-Volume Relation On The Singapore Equity Market, David K. C. Lee, Mohamed Ariff

Research Collection Lee Kong Chian School Of Business

A critical review of the literature on security-price-changes-volume research suggests that the published studies in the United States and one each in Hong Kong and Japan have largely ignored the impacts on the results from autocorrelation, non-normality of distributions, heteroscedasticity and non-linear functional forms. Therefore, the reported findings are not robust. In testing for this relation from a small sample of continuously traded shares in the Singapore share market, we find that consistent results may not be obtained because of violations of basic test conditions. A task that remains is an application of alternative test models with data transformation using …

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Auctions For Transferable Objects: Theory And Evidence From The Vehicle Quota System In Singapore, David K. C. Lee, Winston T. H. Koh Oct 1993

Auctions For Transferable Objects: Theory And Evidence From The Vehicle Quota System In Singapore, David K. C. Lee, Winston T. H. Koh

Research Collection Lee Kong Chian School Of Business

This paper studies the hypothesis that auctions with resale markets result in higher prices. The vehicle quota system introduced in Singapore in May 1990 provides the setting. The Certificates of Entitlement (COEs) necessary to purchase new cars were initially transferable for all quota categories. After October 1991, COEs for four major categories became non-transferable. Our results indicate that while the conversion to non-transferability eliminated speculation, it has also intensified competition among car distributors. Auctions for non-transferable COEs in fact led to higher COE prices in three of the four categories.

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Event-Study Methodology Under Conditions Of Event-Induced Variance, Ekkehart Boehmer, Jim Masumeci, Annette B. Poulsen Dec 1991

Event-Study Methodology Under Conditions Of Event-Induced Variance, Ekkehart Boehmer, Jim Masumeci, Annette B. Poulsen

Research Collection Lee Kong Chian School Of Business

Many authors have identified the hazards of ignoring event-induced variance in event studies. To determine the practical extent of the problem, we simulate an event with stochastic effects. We find that when an event causes even minor increases in variance, the most commonly-used methods reject the null hypothesis of zero average abnormal return too frequently when it is true, although they are reasonably powerful when it is false. We demonstrate that a simple adjustment to the cross-sectional techniques produces appropriate rejection rates when the null is true and equally powerful tests when it is false.

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Dividend Policy And Tax Structure, Kian Guan Lim Dec 1989

Dividend Policy And Tax Structure, Kian Guan Lim

Research Collection Lee Kong Chian School Of Business

We show that a certain class of progressive tax structure induces an optimal dividend policy which is autogressive in nature. The theoritical model is consistent with empirically observed dividend policies.

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A Direct Test Of Rock's Model Of The Pricing Of Unseasoned Issues, Francis Koh, Terry Walter Aug 1989

A Direct Test Of Rock's Model Of The Pricing Of Unseasoned Issues, Francis Koh, Terry Walter

Research Collection Lee Kong Chian School Of Business

Unique data availability and institutional arrangements for new issues in Singapore allow a direct test of the empirical implications of Rock's model of pricing unseasoned new issues. Our empirical results are consistent with the model. Specifically we find that the unseasoned new issues' anomaly disappears when the rationing associated with new issues is incorporated into the analysis. The winner's curse is evident in allocation patterns used in Singapore.

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