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Monolithic Integration Of Collimating Fresnel Lens For Beam Quality Enhancement In Tapered High Power Laser Diode, F. K. Lau, Chyng Wen Tee, X. Zhao, K. A. Williams, R. V. Penty, I. H. White, M. Calligaro, M. Lecomte, O. Parillaud, N. Michel, M. Krakowski Jan 2006

Monolithic Integration Of Collimating Fresnel Lens For Beam Quality Enhancement In Tapered High Power Laser Diode, F. K. Lau, Chyng Wen Tee, X. Zhao, K. A. Williams, R. V. Penty, I. H. White, M. Calligaro, M. Lecomte, O. Parillaud, N. Michel, M. Krakowski

Research Collection Lee Kong Chian School Of Business

We demonstrate, for the first time, a monolithic integrated lens for wide aperture gain-guided tapered laser beam quality enhancement by compensating the quadratic phase curvature. The 3mm long tapered laser with an output aperture of 170μm adopted in this design consists of a gain-guided tapered section and an index-guided ridge section and operated at 980nm. The lens design is implemented by focus ion beam etching (FIBE) technique, whereby the laser diode is mounted p-side up in order to facilitate the etching process. The lens is located 600μm away from the junction of the tapered and ridge sections, and is 40μm …

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Little Understood Knowledge Trap, Hans-Dieter Evers, Solvay Gerke, Thomas Menkhoff Jan 2006

Little Understood Knowledge Trap, Hans-Dieter Evers, Solvay Gerke, Thomas Menkhoff

Research Collection Lee Kong Chian School Of Business

As knowledge increases, we realise how much else we do not know. Successful research always results in new questions. Any knowledge economy must be aware of such unknowns if it is to expand further through research and development. Debate on bridging the digital divide does not take this factor into account. Many of the strategies currently preached are misplaced.

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Westernization Of Business Organizations In Japan And China. Continuity And Change, Wai Keung Chung Jan 2006

Westernization Of Business Organizations In Japan And China. Continuity And Change, Wai Keung Chung

Research Collection School of Social Sciences

No abstract provided.

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Democracy And Oversight, Riccardo Pelizzo, Rick Stapenhurst Jan 2006

Democracy And Oversight, Riccardo Pelizzo, Rick Stapenhurst

Research Collection School of Social Sciences

In the course of the past decade, political science has started paying increasing attention to the study of legislative oversight, which had been previously been described as an important but inadequately researched area of legislative activity (Lees, 1977). Lees’ comment is particularly true with regard to comparative analyses of oversight tools and practices. Some studies have recently discussed the instruments of legislative oversight (Maffio, 2002), other studies have instead investigated how legislative oversight relates to both political variables (Pennings, 2000; Damgaard, 2000; Pelizzo and Stapenhurst, 2004a) and socio-economic conditions (Pelizzo and Stapenhurst, 2004b). In spite of this renewed interest in …

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Ideological Orientation: Does It Still Make A Difference?, Riccardo Pelizzo Jan 2006

Ideological Orientation: Does It Still Make A Difference?, Riccardo Pelizzo

Research Collection School of Social Sciences

No abstract provided.

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Parliamentary Oversight For Government Accountability, Riccardo Pelizzo, Rick Stapenhurst, David Olson Jan 2006

Parliamentary Oversight For Government Accountability, Riccardo Pelizzo, Rick Stapenhurst, David Olson

Research Collection School of Social Sciences

No abstract provided.

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A Code Of Conduct For Indonesia: Problems And Perspectives, Riccardo Pelizzo, Bernice Ang Jan 2006

A Code Of Conduct For Indonesia: Problems And Perspectives, Riccardo Pelizzo, Bernice Ang

Research Collection School of Social Sciences

The purpose of the present paper is fairly straightforward. We want to show that institutional reforms, such as the adoption of a conduct code, represent a necessary albeit insufficient condition to curb corruption and promote good governance. As several scholars have pointed out the success of institutional reform in general and the success of codes of conduct in particular depends, among other things, on ideational conditions. With regard to codes of conduct, parliamentary ethics experts believe in fact that the success of a code of conduct depends on whether the individuals who are supposed to be regulated by the disposition …

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Culture And Counterfactuals: On The Importance Of Life Domains, Jing Chen, Chi-Yue Chiu, Neal J. Roese, Kim-Pong Tam, Ivy Yee-Man Lau Jan 2006

Culture And Counterfactuals: On The Importance Of Life Domains, Jing Chen, Chi-Yue Chiu, Neal J. Roese, Kim-Pong Tam, Ivy Yee-Man Lau

Research Collection School of Social Sciences

Past research, with its emphasis on affective regulatory processes, has failed to find cross-cultural differences in counterfactual thoughts. In the current study, the authors examine the tendency to generate additive counterfactuals (those that focus on the addition of new aspects that were not in fact present) and subtractive counterfactuals (those that focus on subtraction of factual aspects) among Mainland Chinese and European American university students in five life domains: schoolwork, romantic relationships, family relationships, friendships, and life in general. As in previous studies, the authors find an overall main effect, in which additive counterfactuals predominate over subtractive counterfactuals within both …

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Southeast Asian Warfare, 1300-1900, Handbook Of Oriental Studies, Section Three: South-East Asia, Volume 16 By Michael W. Charney [Book Review], Tobias Frederik Rettig Jan 2006

Southeast Asian Warfare, 1300-1900, Handbook Of Oriental Studies, Section Three: South-East Asia, Volume 16 By Michael W. Charney [Book Review], Tobias Frederik Rettig

Research Collection School of Social Sciences

No abstract provided.

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The Mirage Of Global Justice, Chandran Kukathas Jan 2006

The Mirage Of Global Justice, Chandran Kukathas

Research Collection School of Social Sciences

The political pursuit of global justice is not a worthy goal, and our aims in establishing international legal and political institutions should be more modest. The pursuit of justice in the international order is dangerous to the extent that it requires the establishment of powerful supranational agencies, or legitimizes greater and more frequent exercise of political, economic, and military power by strong states or coalitions. The primary concern in the establishment and design of all legal and political institutions should be not to secure justice but to limit power. It is a mistake to think that a distinction can be …

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Rights Of Culture, Rights Of Conscience, Chandran Kukathas Jan 2006

Rights Of Culture, Rights Of Conscience, Chandran Kukathas

Research Collection School of Social Sciences

In this contribution I take up a particularly troubling issue in the theory of human rights. It is the issue of intervention to defend or uphold — or re-assert and re-establish — human rights. The issue is a troubling one because intervention in the affairs of others is always something we should be wary of, not least because history is full of unhappy episodes of intervention, from the Spanish in the Americas to the Chinese in Tibet. Indeed, so difficult and complex are the issues raised that one might be tempted in a discussion of human rights simply to separate …

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Empirical Evidence On Jurisdictions That Adopt Ifrs, Ole-Kristian Hope, Justin Jin, Tony Kang Jan 2006

Empirical Evidence On Jurisdictions That Adopt Ifrs, Ole-Kristian Hope, Justin Jin, Tony Kang

Research Collection School Of Accountancy

International Financial Reporting Standards (IFRS) have recently been adopted in a number of jurisdictions, including the European Union. Despite the importance of IFRS in the context of global accounting standards harmonization, little is known regarding what institutional factors influence countries' decisions to voluntarily adopt IFRS. This issue is relevant to standard-setters because a better understanding of the motivations for adoption will enable them to promote IFRS more effectively to countries that currently do not employ IFRS. Consistent with bonding theory, we find that countries with weaker investor protection mechanisms are more likely to adopt IFRS. Our evidence also shows that …

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The Effects Of Intercorporate Networks On Corporate Social And Political Behaviour, Matthew Bond, Siana Glouharova, Nicholas Harrigan Jan 2006

The Effects Of Intercorporate Networks On Corporate Social And Political Behaviour, Matthew Bond, Siana Glouharova, Nicholas Harrigan

Research Collection School of Social Sciences

Large economic corporations play a central role in the economies of modern societies. Much of what we consume is produced and marketed by corporations, and many of us are employed by them. Our economic fates appear to be inextricably linked to their actions. Not for the first time, however, corporations are facing pressures to expand the scope of their concerns even further. Two cases neatly illustrate the nature of these pressures. First, movements promoting corporate social responsibility exert pressures on corporations to take account of the negative and positive consequences of their actions to third parties; they are requesting that …

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Accounting Restatements: Are They Always Bad News For Investors?, Dan Segal, Jeffrey L. Callen, Joshua Livnat Jan 2006

Accounting Restatements: Are They Always Bad News For Investors?, Dan Segal, Jeffrey L. Callen, Joshua Livnat

Research Collection School Of Accountancy

This study investigates a large sample of financial statement restatements over the period 1986-2001, and compares restatements caused by changes in accounting principles to those caused by errors. Typically, investors perceive restatements as negative signals due to three potential reasons: (a) the restatement indicates problems with the accounting system that may be manifestations of broader operational (and managerial) problems, (b) the restatement causes downward revisions in future cash flows expectations, and (c) the restatement indicates managerial attempts to cover up income decline through “cooking the books.” We provide evidence that market reactions to restatements due to errors are generally negative. …

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Public Accounts Committees, Riccardo Pelizzo, Rick Stapenhurst Jan 2006

Public Accounts Committees, Riccardo Pelizzo, Rick Stapenhurst

Research Collection School of Social Sciences

No abstract provided.

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Asymmetry Of Processing Trade In China : Theory And Empirics, Zhaopeng Xing Jan 2006

Asymmetry Of Processing Trade In China : Theory And Empirics, Zhaopeng Xing

Dissertations and Theses Collection (Open Access)

This paper studies decision of whether outsourcing or localization in China. Both strategies can enjoy low wage advantage. But outsourcing induces processing trade, while localization, which has additional localization cost can turn processing trade of some goods to ordinary trade. The asymmetric effect lies on that once localized, it is hard to return to outsourcing due to competition or fixed expenditures involved. If wage difference larger, it is more preferable to localized. Therefore, we can expect asymmetric effect of processing trade due to movement of relative wage difference, which was proved by econometrics on recent data by cointegrating analysis within …

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External Debt And Growth Dynamics, Si Chen Jan 2006

External Debt And Growth Dynamics, Si Chen

Dissertations and Theses Collection (Open Access)

Based on an extended growth model, this thesis further explores the joint dynamics between external debt and growth. The model explicitly expresses this growth dynamic mechanism incorporating external debt as an important explanatory variable with risk premium and other related structural factors. The interactions between external debt and growth are interpreted as directly and mainly through the channel of capital accumulation and indirectly through technology change. These constitute the functional form foundation to solve the main concern on the effect of external debt upon growth adjustment path. The numerical simulations of the model indicate that when external debt is assumed …

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Information Value Of Credit Ratings In Asia Ex-Japan Markets, Chen Zhou Jan 2006

Information Value Of Credit Ratings In Asia Ex-Japan Markets, Chen Zhou

Dissertations and Theses Collection (Open Access)

This study investigates the information value of credit ratings by exploring the relationship between ratings and security price. Unlike previous studies, we concentrate on the major markets ex-Japan in Asia. We begin with an investigation of rating reclassification as well as credit watch placement events by three leading international rating agencies. We show that markets with differing level of sophistication behave differently. Specifically, South Korea and Hong Kong are found to respond in a similar manner. Indonesia shows possible ign of information leakage. In the cases of Malaysia and Thailand, significant and positive equity price responses exist for upgrades, suggesting …

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The Information Efficiency Of The Corporate Bond Market, Cheng Ying Jan 2006

The Information Efficiency Of The Corporate Bond Market, Cheng Ying

Dissertations and Theses Collection (Open Access)

The link between asset prices and information fundamentals as embodied in news announcement effects is an extremely, if not the most, important area amongst current research in market microstructure. The lack of adequate transaction data posts an obstacle in this research. In this thesis, based on a valuable intraday transaction-by-transaction dataset for U.S. corporate bonds, we first examine the impact of public information contained in the macro-economic news and firm-specific information contained in corporate earnings annoucements on the prices of both corporate bonds and stocks. We find that both bonds and stocks react significantly to public news and firm-specific information, …

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Measuring Global Poverty Right: Mission Impossible?, M. G. Quibria Jan 2006

Measuring Global Poverty Right: Mission Impossible?, M. G. Quibria

Research Collection School Of Economics

The international community is committed to millennium development goals which postulate a vision of global development that makes eliminating poverty and sustaining development the overriding objective of global development efforts. In the hierarchy of the MDGs, the first and foremost goal is to reduce by half, between 1990–2015, the proportion of people whose income is less than a dollar a day (a widely used yardstick to measure extreme poverty). However, estimating such poverty across developing countries and globally is by no means a simple exercise nor has it yielded unambiguous results. This article provides a brief summary of the state …

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A Class Of Nonlinear Stochastic Volatility Models, Jun Yu, Zhenlin Yang Jan 2006

A Class Of Nonlinear Stochastic Volatility Models, Jun Yu, Zhenlin Yang

Research Collection School Of Economics

This paper proposes a class of nonlinear stochastic volatility models based on the Box-Cox transformation which offers an alternative to the one introduced in Andersen (1994). The proposed class encompasses many parametric stochastic volatility models that have appeared in the literature, including the well known lognormal stochastic volatility model, and has an advantage in the ease with which different specifications on stochastic volatility can be tested. In addition, the functional form of transformation which induces marginal normality of volatility is obtained as a byproduct of this general way of modeling stochastic volatility. The efficient method of moments approach is used …

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L S Penrose's Limit Theorem: Tests By Simulation, Pao Li Chang, Vincent Chua, Moshe Machover Jan 2006

L S Penrose's Limit Theorem: Tests By Simulation, Pao Li Chang, Vincent Chua, Moshe Machover

Research Collection School Of Economics

L S Penrose's Limit Theorem-which is implicit in Penrose (1952, p. 72) [Penrose, 1952. On the Objective Study of Crowd Behavior. H. K. Lewis and Co, London, p. 72] and for which he gave no rigorous proof-says that, in simple weighted voting games, if the number of voters increases indefinitely and the relative quota is pegged, then-under certain conditions-the ratio between the voting powers of any two voters converges to the ratio between their weights. Lindner and Machover (2004) [Lindner I., Machover M. 2004. L.S. Penrose's limit theorem: proof of some special cases. Mathematical Social Sciences 47, 37-49] prove some …

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Realized Variance And Market Microstructure Noise - Comment, Peter C. B. Phillips, Jun Yu Jan 2006

Realized Variance And Market Microstructure Noise - Comment, Peter C. B. Phillips, Jun Yu

Research Collection School Of Economics

No abstract provided.

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Modeling The Firm-Size Distribution Using Box-Cox Heteroscedastic Regression, Zhenlin Yang, Yiu Kuen Tse Jan 2006

Modeling The Firm-Size Distribution Using Box-Cox Heteroscedastic Regression, Zhenlin Yang, Yiu Kuen Tse

Research Collection School Of Economics

Using the Box-Cox regression model with heteroscedasticity (BCHR), we re-examine the size distribution of the Portuguese manufacturing firms studied by Machado and Mata () using the Box-Cox quantile regression (BCQR) method. We show that the BCHR model compares favourably against the BCQR method. In particular, the BCHR model can answer the key questions addressed by the BCQR method, with the advantage that the estimated quantile functions are monotonic. Furthermore, estimation of the BCHR model is straightforward and the confidence intervals of the BCHR regression quantiles are easy to compute.

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Financial Liberalization In A Small Open Economy, Haiping Zhang, Jürgen Von Hagen Jan 2006

Financial Liberalization In A Small Open Economy, Haiping Zhang, Jürgen Von Hagen

Research Collection School Of Economics

We address three related questions concerning financial liberalization in a small open economy. Does financial liberalization and the resulting capital inflow improve production efficiency in the domestic economy? Who benefits from financial liberalization in the long run and in the short run? Should financial liberalization be implemented gradually or hastily? Our main results are as follows. First, whether financial deregulation in one sector can improve production efficiency may depend on financial regulation in other sectors. Second, financial liberalization may have opposite welfare implications to domestic agents with different productivity in the long run. Third, although some domestic agents lose in …

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Semi-Parametric Inference In A Bivariate (Multivariate) Mixture Model, Denis H. Y. Leung, Jing Qin Jan 2006

Semi-Parametric Inference In A Bivariate (Multivariate) Mixture Model, Denis H. Y. Leung, Jing Qin

Research Collection School Of Economics

We consider estimation in a bivariate mixture model in which the component distributions can be decomposed into identical distributions. Previous approaches to estimation involve parametrizing the distributions. In this paper, we use a semi-parametric approach. The method is based on the exponential tilt model of Anderson (1979), where the log ratio of probability (density) functions from the bivariate components is linear in the observations. The proposed model does not require training samples, i.e., data with confirmed component membership. We show that in bivariate mixture models, parameters are identifiable. This is in contrast to previous works, where parameters are identifiable if …

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An Empirical Examination Of Ipo Underpricing In The Chinese A-Share Market, Ting Yu, Yiu Kuen Tse Jan 2006

An Empirical Examination Of Ipo Underpricing In The Chinese A-Share Market, Ting Yu, Yiu Kuen Tse

Research Collection School Of Economics

Research in the literature shows that initial public offerings (IPOs) of common stocks are systematically priced at a discount to their subsequent initial trading price. The large underpricing magnitude in the Chinese IPO market has attracted much attention. We consider three hypotheses that may explain the IPO underpricing in China. These are the winner's curse hypothesis, the ex ante uncertainty hypothesis and the signaling hypothesis. Among these hypotheses, the winner's curse hypothesis has not been tested in the Chinese market. Using IPO data for online fixed-price offerings from November 1995 to December 1998, our results show that the winner's curse …

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A Survey On Physical Delivery Versus Cash Settlement In Futures Contracts, Donald Lien, Yiu Kuen Tse Jan 2006

A Survey On Physical Delivery Versus Cash Settlement In Futures Contracts, Donald Lien, Yiu Kuen Tse

Research Collection School Of Economics

A futures contract may adopt physical delivery or cash settlement to liquidate open positions after the maturity day. While traditionally physical delivery specification is favored, exchanges have recently turned to examine cash settlement possibilities. This paper summarizes current literature on settlement specifications with emphases on market manipulation, cash index construction, and hedging effectiveness comparisons.

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Coalition Formation Theories Revisited: An Empirical Investigation Of Aumann's Hypothesis, Vincent Chua, Dan S. Felsenthal Jan 2006

Coalition Formation Theories Revisited: An Empirical Investigation Of Aumann's Hypothesis, Vincent Chua, Dan S. Felsenthal

Research Collection School Of Economics

In one of the earliest attempts to examine the effect of a priori voting power on actual political phenomena, Riker (1959) looked at changes in party affiliation in the French National Assembly in 1953–54, and used these data to test the hypothesis that deputies who switched parties were seeking thereby to increase their a priori voting power. His findings were negative, or at best inconclusive.

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Commune-Level Estimation Of Poverty Measure And Its Application In Cambodia, Tomoki Fujii Jan 2006

Commune-Level Estimation Of Poverty Measure And Its Application In Cambodia, Tomoki Fujii

Research Collection School Of Economics

Cambodia is still suffering from the legacy of civil conflict after more than a decade. With over one-third of the population living below the poverty line, poverty remains one of the most serious problems in Cambodia. A number of governmental bodies, local and international nongovernmental organizations (NGOs), and international organizations operating in Cambodia have made eradicating poverty a priority and have established many social programmes to this end. In designing such programmes, the efficient allocation of resources is essential for making poverty alleviation more cost-effective. Targeting is often helpful for this purpose because one can avoid wasting resources on the …

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