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An Issue Of Absolution: Section 391 Of The Companies Act, Pearlie Koh Sep 2003

An Issue Of Absolution: Section 391 Of The Companies Act, Pearlie Koh

Research Collection Yong Pung How School Of Law

There is an obvious tension in the imposition of directors’ duties. Whilst directors being the management, and therefore the eyes, ears and brain of the corporate person, must be given sufficient discretion to take on entrepreneurial (and hence risky) ventures with a view to profit maximisation, there is also the need to curb excesses, as the potential or opportunity for mismanagement, negligence and fraud is omnipresent. [T]his short article considers section 391 of the Companies Act (Cap 50), arguably the statutory nemesis of directors’ duties. Section 391 gives jurisdiction to the court hearing the case to relieve an officer from …

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Analysis Of Private Transfers With Panel Fixed Effect Censored Model Estimator, Sung Jin Kang, Myoung-Jae Lee Aug 2003

Analysis Of Private Transfers With Panel Fixed Effect Censored Model Estimator, Sung Jin Kang, Myoung-Jae Lee

Research Collection School Of Economics

Understanding private transfer is important for safety-net policies because private transfer provides economic benefits similar to those of public programs such as unemployment insurance and pension. Applying Honoré’s [Econometrica 60 (1992) 533] panel fixed-effect censored model estimator to Korean data, we show that private transfer is altruistically motivated and there is a strong crowding-out effect of public transfer on private transfer. We also find that low-income people suffered to different degrees during the financial crisis period of 1997 to 1998. This finding and the crowding-out effect may be taken as failures of the Korean public transfer programs during the period.

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Open Versus Sealed-Bid Auctions: Testing For Revenue Equivalence Under Singapore's Vehicle Quota System, Winston T. H. Koh, Roberto S. Mariano, Yiu Kuen Tse Aug 2003

Open Versus Sealed-Bid Auctions: Testing For Revenue Equivalence Under Singapore's Vehicle Quota System, Winston T. H. Koh, Roberto S. Mariano, Yiu Kuen Tse

Research Collection School Of Economics

Using data from the auction of vehicle quota licenses in Singapore, we study if revenue equivalence holds when the auction format was switched from a sealed-bid format (May 1990 to June 2001) to an open bidding format since July 2001. Our econometric analysis indicates the change in auction format led to a change in bidding behavior. On average, the quota license premium under the open bidding format is about US$1,000 (about 7.5% of the Category E license price in June 2001) lower, compared to the forecast level that would have prevailed if there had been no change in the auction …

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Solving Multi-Objective Multi-Constrained Optimization Problems Using Hybrid Ants System And Tabu Search, Hoong Chuin Lau, Min Kwang Lim, Wee Chong Wan, Hui Wang, Xiaotao Wu Aug 2003

Solving Multi-Objective Multi-Constrained Optimization Problems Using Hybrid Ants System And Tabu Search, Hoong Chuin Lau, Min Kwang Lim, Wee Chong Wan, Hui Wang, Xiaotao Wu

Research Collection School Of Computing and Information Systems

Many real-world optimization problems today are multi-objective multi-constraint generalizations of NP-hard problems. A classic case we study in this paper is the Inventory Routing Problem with Time Windows (IRPTW). IRPTW considers inventory costs across multiple instances of Vehicle Routing Problem with Time Windows (VRPTW). The latter is in turn extended with time-windows constraints from the Vehicle Routing Problem (VRP), which is extended with optimal fleet size objective from the single-objective Traveling Salesman Problem (TSP). While single-objective problems like TSP are solved effectively using meta-heuristics, it is not obvious how to cope with the increasing complexity systematically as the problem is …

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Information Systems Requirements Determination And Analysis: A Mental Modeling Approach, Keng Siau, X. Tan Aug 2003

Information Systems Requirements Determination And Analysis: A Mental Modeling Approach, Keng Siau, X. Tan

Research Collection School Of Computing and Information Systems

Regardless of the system development methodology adopted, being able to understand users’ informationrequirements is vital to the success of an information systems project. The intrinsic communications obstaclesexist within an individual user, among users, and between users and systems analysts. Different requirementsdetermination and analysis (RDA) techniques have been widely used with different outcomes. Some limitations of these techniques can be identified. In this paper, we propose a mental modeling approach to support RDA. Popular in other disciplines, mental modeling techniques have some distinct advantages to overcome some intrinsic communication obstacles in RDA, and to complement other techniques.

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Role Of Government In Attracting And Inviting Investment From The Private Sector: Extrapolations From The Singapore Experience, Caroline Yeoh, Siang Yeung Wong, Adeline Li Feng Kwan Aug 2003

Role Of Government In Attracting And Inviting Investment From The Private Sector: Extrapolations From The Singapore Experience, Caroline Yeoh, Siang Yeung Wong, Adeline Li Feng Kwan

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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A Study On Tolerable Waiting Time: How Long Are Web Users Willing To Wait?, Fiona Fui-Hoon Nah Aug 2003

A Study On Tolerable Waiting Time: How Long Are Web Users Willing To Wait?, Fiona Fui-Hoon Nah

Research Collection School Of Computing and Information Systems

The WWW has become an important channel for information access, electronic commerce, and publication. With an exponential increase in the number of Web users and the popularity of multimedia technology, users often face a long waiting time for downloading Web pages. Although various technologies and techniques have been implemented to alleviate the situation and to comfort the impatient users, little research has been done to assess what constitutes an acceptable and tolerable waiting time for Web users. This research reviews the literature on computer response time and users’ waiting time, and assesses Web users’ tolerable waiting time in information retrieval. …

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Performance Sensitivity And Fairness Of Ecn-Aware 'Modified Tcp', Archan Misra, Teunis Ott Aug 2003

Performance Sensitivity And Fairness Of Ecn-Aware 'Modified Tcp', Archan Misra, Teunis Ott

Research Collection School Of Computing and Information Systems

The paper discusses how Explicit Congestion Notification (ECN) can be used to devise a congestion control mechanism for the Internet, which is more rapidly reactive and allows best-effort flows to rapidly adjust to fluctuations in available capacity. Our ECN-mod protocol involves simple modifications to TCP behavior and leverages more aggressive marking-based router feedback.Simulations show that ECN-mod is better than TCP NewReno even for Web-style intermittent traffic sources, and makes the link utilization significantly less sensitive to the variation in the number of active flows. Simulations also show that, while ECN-mod flows obtain a larger portion of the available capacity than …

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Adrenocortical Adenoma And Carcinoma: Histopathological And Molecular Comparative Analysis, A. Stojadinovic, M. F. Brennan, A. Hoos, A. Omeroglu, Denis H. Y. Leung, M. Dudas, A. Nissan, C. Cordon-Cardo, R.A. Ghossein Aug 2003

Adrenocortical Adenoma And Carcinoma: Histopathological And Molecular Comparative Analysis, A. Stojadinovic, M. F. Brennan, A. Hoos, A. Omeroglu, Denis H. Y. Leung, M. Dudas, A. Nissan, C. Cordon-Cardo, R.A. Ghossein

Research Collection School Of Economics

We compared histomorphological features and molecular expression profiles of adrenocortical adenomas (ACAd) and carcinomas (ACCa). A critical histopathological review (mean, 11 slides per patient) was conducted of 37 ACAd and 67 ACCa. Paraffin-embedded tissue cores of ACAd (n = 33) and ACCa (n = 38) were arrayed in triplicate on tissue microarrays. Expression profiles of p53, mdm-2, p21, Bcl-2, cyclin D1, p27, and Ki-67 were investigated by immunohistochemistry and correlated with histopathology and patient outcome using standard statistical methodology. Median follow-up period was 5 years. Tumor necrosis, atypical mitoses, and >1 mitosis per 50 high-power fields were factors that were …

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Dictatorial Domains, Navin Aswal, Shurojit Chatterji, Arunava Sen Aug 2003

Dictatorial Domains, Navin Aswal, Shurojit Chatterji, Arunava Sen

Research Collection School Of Economics

In this paper, we introduce the notion of a linked domain and prove that a non-manipulable social choice function defined on such a domain must be dictatorial. This result not only generalizes the Gibbard-Satterthwaite Theorem but also demonstrates that the equivalence between dictatorship and non-manipulability is far more robust than suggested by that theorem. We provide an application of this result in a particular model of voting. We also provide a necessary condition for a domain to be dictatorial and use it to characterize dictatorial domains in the cases where the number of alternatives is three.

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The Effect Of Domain Knowledge On Icon Visualization, Keng Siau, Fiona Fui-Hoon Nah Aug 2003

The Effect Of Domain Knowledge On Icon Visualization, Keng Siau, Fiona Fui-Hoon Nah

Research Collection School Of Computing and Information Systems

Iconic interfaces are now the de facto interface for most computer systems. Despite the popularity of iconic interfaces and the widespread belief that iconic interfaces are easier to comprehend than non-iconic interfaces, we have not come across any published study that has examined the effect of domain knowledge on end users’ interpretation of icons. An understanding of the relationship between domain knowledge and its effect on interpretation will enable us to design better icons to not only facilitate end users’ interpretation but also reduce misinterpretations of icons. This paper reports on an experimental study that investigates the effect of domain …

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Erp Implementation: Chief Information Officers’ Perceptions Of Critical Success Factors, Fiona Fui-Hoon Nah, Kathryn M. Zuckweiler, Janet Lee-Shang Lau Aug 2003

Erp Implementation: Chief Information Officers’ Perceptions Of Critical Success Factors, Fiona Fui-Hoon Nah, Kathryn M. Zuckweiler, Janet Lee-Shang Lau

Research Collection School Of Computing and Information Systems

This article reports the results of a survey of Chief Information Officers (CIOs) from Fortune 1000 companies on their perceptions of the critical success factors in Enterprise Resource Planning (ERP) implementation. Through a review of the literature, 11 critical success factors were identified , with underlying subfactors, for successful ERP implementation. The degree of criticality of each of these factors were assessed in a survey administered to the CIOs. The 5 most critical factors identified by the CIOs were top management support, project champion, ERP teamwork and composition, project management, and change management program and culture. The importance of each …

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Factors Influencing The Adoption Of E-Marketplaces By Small Organizations: An Empirical Investigation, Xin Tan, Fiona Fui-Hoon Nah, Charalambos Iacovou, Jaekyung. Kim Aug 2003

Factors Influencing The Adoption Of E-Marketplaces By Small Organizations: An Empirical Investigation, Xin Tan, Fiona Fui-Hoon Nah, Charalambos Iacovou, Jaekyung. Kim

Research Collection School Of Computing and Information Systems

The emergence of mobile computing combined with the increased popularity of the Internet is changing our daily lives. The increasing use of small portable computers, wireless networks and satellites un folds the new technology of mobile computing, which allows transmis sion of data to computers that are not physically linked to a network. As a result, people can communicate on the move. Mobile devices with new input and output methods and form factors are dramatically different from traditional desktop computers (Rodden et al., 1998). These technological changes make increasing demands on both the quality of user interface and the functionality …

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Towards A Role-Based Metadata Scheme For Educational Digital Libraries: A Case Study In Singapore, Dian Melati Md Ismail, Ming Yin, Yin-Leng Theng, Dion Hoe-Lian Goh, Ee Peng Lim Aug 2003

Towards A Role-Based Metadata Scheme For Educational Digital Libraries: A Case Study In Singapore, Dian Melati Md Ismail, Ming Yin, Yin-Leng Theng, Dion Hoe-Lian Goh, Ee Peng Lim

Research Collection School Of Computing and Information Systems

In this paper, we describe the development of an appropriate metadata scheme for GeogDL, a Web-based digital library application containing past-year examination resources for students taking a Singapore national examination in geography. The new metadata scheme was developed from established metadata schemes on education and e-learning. Initial evaluation showed that a role-based approach would be more viable, adapting to the different roles of teachers/educators and librarians contributing geography resources to GeogDL. The paper concludes with concrete implementation of the role-based metadata schema for GeogDL.

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A Generic Object-Oriented Tabu Search Framework, Hoong Chuin Lau, Wee Chong Wan, Xiaomin Jia Aug 2003

A Generic Object-Oriented Tabu Search Framework, Hoong Chuin Lau, Wee Chong Wan, Xiaomin Jia

Research Collection School Of Computing and Information Systems

Presently, most tabu search designers devise their applications without considering the potential of design and code reuse, which consequently prolong the development of subsequent applications. In this paper, we propose a software solution known as Tabu Search Framework (TSF), which is a generic C++ software framework for tabu search implementation. The framework excels in code recycling through the use of a welldesigned set of generic abstract classes that clearly define their collaborative roles in the algorithm. Additionally, the framework incorporates a centralized process and control mechanism that enhances the search with intelligence. This results in a generic framework that is …

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Operationalizing Technology Improvements In Product Development Decision-Making, Shantanu Bhattacharya, V. Krishnan, Vijay Mahajan Aug 2003

Operationalizing Technology Improvements In Product Development Decision-Making, Shantanu Bhattacharya, V. Krishnan, Vijay Mahajan

Research Collection Lee Kong Chian School Of Business

Achieving competitive advantage and price premiums in many technology-based markets requires the incorporation of current technology in new products. To do so, firms in hyper-competitive environments increasingly plan and design their products concurrent with the independent development and validation of underlying technologies. Simultaneous validation of a core technology has important implications for a company's product positioning and launch sequence decisions making these traditional marketing decisions relevant to operations managers. Prior research has shown that to minimize cannibalization in the absence of such improvements in technology, a firm should not launch low-end products before high-end products. However, concurrent evolution of technology …

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Broadcast Scheduling For Mobile Advertising, Bert De Reyck, Zeger Degraeve Aug 2003

Broadcast Scheduling For Mobile Advertising, Bert De Reyck, Zeger Degraeve

Research Collection Lee Kong Chian School Of Business

We describe a broadcast scheduling system developed for a precision marketing firm specialized in location-sensitive permission-based mobile advertising using SMS (Short Message Service) text messaging. Text messages containing advertisements were sent to registered customers when they were shopping in one of two shopping centers in the vicinity of London. The ads typically contained a limited-time promotional offer. The company's problem was deciding which ads to send out to which customers at what particular time, given a limited capacity of broadcast time slots, while maximizing customer response and revenues from retailers paying for each ad broadcast. We solved the problem using …

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Antecedents Of Consumer Trust In B-To-C Electronic Commerce, Dan J. Kim, Donald L. Ferrin, H. Raghav Rao Aug 2003

Antecedents Of Consumer Trust In B-To-C Electronic Commerce, Dan J. Kim, Donald L. Ferrin, H. Raghav Rao

Research Collection Lee Kong Chian School Of Business

Despite the importance of trust in electronic commerce, there is insufficient theory and evidence concerning the determinants of consumer trust about an Internet vendor’s trustworthiness, and the influence of consumer trust on the consumer’s purchasing intention. The purpose of this study is to: i) develop a theoretical framework identifying the antecedents of a consumer’s trust and purchase intention, ii) test the proposed model using Structural Equation Modeling, analyzing Internet consumer behavior data collected via a Web survey, and iii) provide theoretical and managerial implications. The results of the study show that consumers’ disposition to trust, privacy protection, security protection, consumers’ …

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Singapore Management University’S “First Graduates” Secure Jobs With Top Employers Well In Advance Of August Graduation, Singapore Management University Jul 2003

Singapore Management University’S “First Graduates” Secure Jobs With Top Employers Well In Advance Of August Graduation, Singapore Management University

SMU Press Releases and News

No abstract provided.

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Spread, Depth, And Order Flow Patterns Of Warrants And Their Underlying Stocks On The Stock Exchange Of Thailand, Charlie Charoenwong, Nuttawat Visaltanachoti, David K. Ding Jul 2003

Spread, Depth, And Order Flow Patterns Of Warrants And Their Underlying Stocks On The Stock Exchange Of Thailand, Charlie Charoenwong, Nuttawat Visaltanachoti, David K. Ding

Research Collection Lee Kong Chian School Of Business

This study compared the trading characteristics of warrants and their underlying stocks. The Stock Exchange of Thailand provided a good platform for comparing the trading characteristics of warrants and their underlying stocks because both these securities are traded in the same market venue and have identical trading rules. Hence, the impact of trading protocol on intraday variation and an informed trader's decision to buy warrants or stocks was controlled. The paper found that they have a similar downward sloping pattern of spreads, adverse selection component, and liquidity immediacy, U-shaped for volatility and trading volume, and upward-sloping for depth and market …

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Detection Of Documentary Scene Changes By Audio-Visual Fusion, Atulya Velivelli, Chong-Wah Ngo, Thomas S. Huang Jul 2003

Detection Of Documentary Scene Changes By Audio-Visual Fusion, Atulya Velivelli, Chong-Wah Ngo, Thomas S. Huang

Research Collection School Of Computing and Information Systems

The concept of a documentary scene was inferred from the audio-visual characteristics of certain documentary videos. It was observed that the amount of information from the visual component alone was not enough to convey a semantic context to most portions of these videos, but a joint observation of the visual component and the audio component conveyed a better semantic context. From the observations that we made on the video data, we generated an audio score and a visual score. We later generated a weighted audio-visual score within an interval and adaptively expanded or shrunk this interval until we found a …

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Trifocal Morphing, Angus M. K. Siu, Ada S. K. Wan, Rynson W. H. Lau, Chong-Wah Ngo Jul 2003

Trifocal Morphing, Angus M. K. Siu, Ada S. K. Wan, Rynson W. H. Lau, Chong-Wah Ngo

Research Collection School Of Computing and Information Systems

Image morphing allows smooth transition between 2D images. However, one of the limitations of existing image morphing techniques is the lack of interaction - the viewpoints of the interpolated images are restrained to the line joining the optical centers of the source and the destination images. Another limitation of existing image morphing techniques is that shape warping often causes distortion due to barycentric mapping. In this paper, we present our trifocal morphing technique to address these problems. The new technique allows a user to change the viewpoint of the output images, i.e., increasing the degrees of freedom of interaction, and …

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People, Politics, Policy: The (Im)Possibilities Of Institutional Collaborations, Lily Kong Jul 2003

People, Politics, Policy: The (Im)Possibilities Of Institutional Collaborations, Lily Kong

Research Collection School of Social Sciences

The university is among the oldest and most durable institutions in the world, surviving over 900 years. Until relatively recently, universities were small institutions, catering to slight proportions of the general population. They were elite institutions. Educating these small groups was the remit of universities. However, the reach, roles, and expectations of universities have changed especially in the last century and a half. While still catering to a select group, the proportions of many societies which have access to university education have grown. Further, whereas education was previously the sole function of universities, research expectations appeared about 150 years ago. …

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Singapore Management University’S Pioneer Cohort Of Masters Studentsgraduates, Singapore Management University Jul 2003

Singapore Management University’S Pioneer Cohort Of Masters Studentsgraduates, Singapore Management University

SMU Press Releases and News

No abstract provided.

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Transborder Industrialization And Singapore's 'Clones' In Indonesia, China And Vietnam: A Strategy Reconsidered, Caroline Yeoh, Chee Sin Koh, Julian Ching Wei Wee Jul 2003

Transborder Industrialization And Singapore's 'Clones' In Indonesia, China And Vietnam: A Strategy Reconsidered, Caroline Yeoh, Chee Sin Koh, Julian Ching Wei Wee

Research Collection Lee Kong Chian School Of Business

The idea of exporting Singapore’s expertise in infrastructure development took hold, in the early 1990s, as part of a larger regionalization strategy. Singapore’s positive reputation with multinational corporations for the efficiency of its industrial infrastructure and its stable, corrupt-free investment environment underscored this strategy. Led by Singapore’s government-linked companies, industrial parks were established in several Asian countries. Their progress is a test of Singapore’s ability to export its efficiency in industrial park development and management outside its borders. This paper finds that the initial optimism with which the flagship projects were unveiled has not been justified.

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Video Clip Retrieval By Maximal Matching And Optimal Matching In Graph Theory, Yu-Xin Peng, Chong-Wah Ngo, Qing-Jie Dong, Zong-Ming Guo, Jian-Guo Xiao Jul 2003

Video Clip Retrieval By Maximal Matching And Optimal Matching In Graph Theory, Yu-Xin Peng, Chong-Wah Ngo, Qing-Jie Dong, Zong-Ming Guo, Jian-Guo Xiao

Research Collection School Of Computing and Information Systems

In this paper, a novel approach for automatic matching, ranking and retrieval of video clips is proposed. Motivated by the maximal and optimal matching theories in graph analysis, a new similarity measure of video clips is defined based on the representation and modeling of bipartite graph. Four different factors: visual similarity, granularity, interference and temporal order of shots are taken into consideration for similarity ranking. These factors are progressively analyzed in the proposed approach. Maximal matching utilizes the granularity factor to efficiently filter false matches, while optimal matching takes into account the visual, granularity and interference factors for similarity measure. …

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What Has Luck Got To Do With Economic Development? An Interpretation Of Resurgent Asia's Growth Experience, Hing-Man Leung, Swee Liang Tan, Zhenlin Yang Jul 2003

What Has Luck Got To Do With Economic Development? An Interpretation Of Resurgent Asia's Growth Experience, Hing-Man Leung, Swee Liang Tan, Zhenlin Yang

Research Collection School Of Economics

This paper critically reexamines the belief, currently gathering strength in the literature, that economic development depends on good luck rather than on good policy, and that Prometheus is “unchained by chance”. While it is impossible to disprove the role of luck in growth, we argue that luck is endogenous, and good luck is a function of good policy. Luck favours those who strive. Again contrary to common belief, we show that resurgent Asian economies have endured more, not less, than their fair share of economic volatility. They learned their lessons by success and failures, and luck is endogenous through learning-by-investing.

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Transformation Approaches For The Construction Of Weibull Prediction Interval, Zhenlin Yang, Stanley P. See, Min Xie Jul 2003

Transformation Approaches For The Construction Of Weibull Prediction Interval, Zhenlin Yang, Stanley P. See, Min Xie

Research Collection School Of Economics

Two methods of transforming the Weibull data to near normality, namely the Box-Cox method and Kullback-Leibler (KL) information method, are discussed and contrasted. A simple prediction interval (PI) based on the better KL information method is proposed. The asymptotic property of this interval is established. Its small sample behavior is investigated using Monte Carlo simulation. Simulation results show that this simple interval is close to the existing complicated PI where the percentage points of the reference distribution have to be either simulated or approximated.

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A New Coincident Index Of Business Cycles Based On Monthly And Quarterly Series, Roberto S. Mariano, Yasutomo Murasawa Jul 2003

A New Coincident Index Of Business Cycles Based On Monthly And Quarterly Series, Roberto S. Mariano, Yasutomo Murasawa

Research Collection School Of Economics

Popular monthly coincident indices of business cycles, e.g. the composite index and the Stock-Watson coincident index, have two shortcomings. First, they ignore information contained in quarterly indicators such as real GDP. Second, they lack economic interpretation; hence the heights of peaks and the depths of troughs depend on the choice of an index. This paper extends the Stock-Watson coincident index by applying maximum likelihood factor analysis to a mixed-frequency series of quarterly real GDP and monthly coincident business cycle indicators. The resulting index is related to latent monthly real GDP. [PUBLICATION ABSTRACT]

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A Novel Scheme For Video Similarity Detection, Steven Hoi, Wei Wang, Michael R. Lyu Jul 2003

A Novel Scheme For Video Similarity Detection, Steven Hoi, Wei Wang, Michael R. Lyu

Research Collection School Of Computing and Information Systems

In this paper, a new two-phase scheme for video similarity detection is proposed. For each video sequence, we extract two kinds of signatures with different granularities: coarse and fine. Coarse signature is based on the Pyramid Density Histogram (PDH) technique and fine signature is based on the Nearest Feature Trajectory (NFT) technique. In the first phase, most of unrelated video data are filtered out with respect to the similarity measure of the coarse signature. In the second phase, the query video example is compared with the results of the first phase according to the similarity measure of the fine signature. …

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