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Articles 7291 - 7320 of 8024

Full-Text Articles in Social and Behavioral Sciences

On Leverage In A Stochastic Volatility Model, Jun Yu Aug 2005

On Leverage In A Stochastic Volatility Model, Jun Yu

Research Collection School Of Economics

This paper is concerned with the specification for modelling financial leverage effect in the context of stochastic volatility (SV) models. Two alternative specifications co-exist in the literature. One is the Euler approximation to the well-known continuous time SV model with leverage effect and the other is the discrete time SV model of Jacquier et al. (J. Econometrics 122 (2004) 185). Using a Gaussian nonlinear state space form with uncorrelated measurement and transition errors, I show that it is easy to interpret the leverage effect in the conventional model whereas it is not clear how to obtain and interpret the leverage …

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Estimating Party Policy Positions: Japan In Comparative Context, Michael Laver, Kenneth Benoit Aug 2005

Estimating Party Policy Positions: Japan In Comparative Context, Michael Laver, Kenneth Benoit

Research Collection School of Social Sciences

This paper first reviews a number of epistemological and methodological issues relating to the estimation of party policy positions, particularly in a comparative context, with special reference to the methodology of ‘expert surveys’. It is argued that expert surveys, as systematic summaries of the views of country specialists, have a particular role in assessing the content validity of other types of estimates of party policy positions. The paper moves on to analyze the positions of Japanese political parties in a comparative context, using results from a new 47-country expert survey. Attention is paid both to the substantive policy content of …

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The 2004 Global Labour Survey: Working Institution And Practices Around The World, Davin Chor, Richard B. Freeman Aug 2005

The 2004 Global Labour Survey: Working Institution And Practices Around The World, Davin Chor, Richard B. Freeman

Research Collection School Of Economics

The 2004 Global Labor Survey (GLS) is an Internet-based survey that seeks to measure de facto labor practices in countries around the world, covering issues such as freedom of association, the regulation of work contracts, employee benefits and the prevalence of collective bargaining. To find out about de facto practices, the GLS invited labor practitioners, ranging from union officials and activists to professors of labor law and industrial relations, to report on conditions in their country. Over 1,500 persons responded, which allowed us to create indices of practices in ten broad areas for 33 countries. The GLS' focus on de …

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Protection For Sale Under Monopolistic Competition, Pao Li Chang Aug 2005

Protection For Sale Under Monopolistic Competition, Pao Li Chang

Research Collection School Of Economics

This paper proposes a general empirical framework to estimate the protection-for-sale model, where the protection regime shifts according to a sector's market structure (perfectly or monop-olistically competitive). We base the protection structure on Grossman and Helpman (1994) for the subset of perfectly competitive sectors and on Chang (2005) for the subset of monop- olistically competitive sectors. The two protection regimes are simultaneously estimated with joint constraints. The results of the J-test consistently reject the homogeneous (perfect compe- tition) protection-for-sale model often adopted in previous literature and suggest a direction of improvement toward the proposed heterogeneous protection structure model.

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Religious Schools: For Spirit, (F)Or Nation, Lily Kong Aug 2005

Religious Schools: For Spirit, (F)Or Nation, Lily Kong

Research Collection School of Social Sciences

In this paper I draw attention to the study of 'unofficially sacred' sites in geographies of religion, which provide significant insights into the construction of religious identity and community, and the intersections of sacred and secular. I show that such sites deserve as much attention as places of worship (the more conventional focus in the geographical study of religion) in our understanding of the place of religion in contemporary urban society. In particular, using the case of Islamic religious schools in Singapore, I examine how Muslim identities and community are negotiated within multicultural and multireligious contexts, and particularly within one …

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Geogdl: A Web-Based Approach To Geography Examination, Ee Peng Lim, Dion Hoe-Lian Goh, Yin-Leng Theng Aug 2005

Geogdl: A Web-Based Approach To Geography Examination, Ee Peng Lim, Dion Hoe-Lian Goh, Yin-Leng Theng

Research Collection School Of Computing and Information Systems

The traditional educational approach with students as passive recipients has been the subject of criticism. A constructivist learner-centered approach towards education has been argued to produce greater internalization and application of knowledge compared to the traditional teacher-centered, transmission-oriented approach. Nevertheless, contemporary instructional design models argue for the use and integration of both approaches especially in complex learning tasks. This paper describes GeogDL, a Web-based application developed above a digital library of geographical resources for Singapore students preparing to take a national examination in geography. GeogDL is unique in that it not only provides an environment for active learning, it also …

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Dispatching Vehicles In A Mega Container Terminal, Ebru K. Bish, Frank Y. Chen, Thin Yin Leong, Barry L. Nelson, Jonathan W. C. Ng, David Simchi-Levi Aug 2005

Dispatching Vehicles In A Mega Container Terminal, Ebru K. Bish, Frank Y. Chen, Thin Yin Leong, Barry L. Nelson, Jonathan W. C. Ng, David Simchi-Levi

Research Collection School Of Computing and Information Systems

We consider a container terminal discharging and uploading containers to and from ships. The discharged containers are stored at prespecified storage locations in the terminal yard. Containers are moved between the ship area and the yard using a fleet of vehicles, each of which can carry one container at a time. The problem is to dispatch vehicles to the containers so as to minimize the total time it takes to serve a ship, which is the total time it takes to discharge all containers from the ship and upload new containers onto the ship. We develop easily implementable heuristic algorithms …

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Report Of The Law Reform Committee On Pre- And Post-Judgement Interest, Tiong Min Yeo, Wai Yee Wan, Joyce Chao, Julie Huan, Vincent Leow, Sriram Chakravarthi Aug 2005

Report Of The Law Reform Committee On Pre- And Post-Judgement Interest, Tiong Min Yeo, Wai Yee Wan, Joyce Chao, Julie Huan, Vincent Leow, Sriram Chakravarthi

Research Collection Yong Pung How School Of Law

No abstract provided.

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The Smu City Campus On Schedule For Move In August 2005, Singapore Management University Jul 2005

The Smu City Campus On Schedule For Move In August 2005, Singapore Management University

SMU Press Releases

No abstract provided.

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Smu Celebrates Second Batch Of 520 Graduates, Singapore Management University Jul 2005

Smu Celebrates Second Batch Of 520 Graduates, Singapore Management University

SMU Press Releases

No abstract provided.

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The City To Pulse With A New Heartbeat As Smu Arrives! – Bukit Timah Campus Vacated After A Solemn Flag Lowering Ceremony, Singapore Management University Jul 2005

The City To Pulse With A New Heartbeat As Smu Arrives! – Bukit Timah Campus Vacated After A Solemn Flag Lowering Ceremony, Singapore Management University

SMU Press Releases

No abstract provided.

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The Korean Language And The Effects Of Its Honorifics System In Advertising: Deferential Vs. Informal Speech As Regulatory Prime On Persuasive Impact, Jin K. Han, Yong Seok Sohn, Kun Woo Yoo Jul 2005

The Korean Language And The Effects Of Its Honorifics System In Advertising: Deferential Vs. Informal Speech As Regulatory Prime On Persuasive Impact, Jin K. Han, Yong Seok Sohn, Kun Woo Yoo

Research Collection Lee Kong Chian School Of Business

A very prominent feature of the Korean language is its extensive honorifics system, where the speaker is obliged to adopt a level of speech (deferential vs. informal) befitting the status of the target audience. As the context for using deferential (informal) speech parallels the setting for prevention (promotion) focus, we set out to examine whether the Korean honorifics system itself functions as a natural prime for regulatory orientation. In Study 1, we find that deferential (informal) speech style activates prevention (promotion) focus in the addressee. Accordingly, we show that ad copies in deferential (informal) speech style resulted in regulatory fit …

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Regret In Cancer-Related Decisions, Terry Connolly, Jochen Reb Jul 2005

Regret In Cancer-Related Decisions, Terry Connolly, Jochen Reb

Research Collection Lee Kong Chian School Of Business

Decision-related regret is a negative emotion associated with thinking about a past or future choice. The thinking component generally takes the form of a wish that things were otherwise and involves a comparison of what actually did or will take place with some better alternative--a counterfactual thought. For predecisional (anticipated) regret, the thinking involves a mental simulation of the outcomes that might result from different choice options. Prior research has focused on regret associated with decision outcomes, addressing especially (a) the comparison outcome selected and (b) whether the outcome resulted from action or inaction. More recent research examines regret associated …

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Staying Ahead Of The Competition: Insights From Singapore's Manufacturing Enclave In Vietnam, Caroline Yeoh, Di Kun Goh, Wilfred Pow Ngee How Jul 2005

Staying Ahead Of The Competition: Insights From Singapore's Manufacturing Enclave In Vietnam, Caroline Yeoh, Di Kun Goh, Wilfred Pow Ngee How

Research Collection Lee Kong Chian School Of Business

The apparent success of Singapore-styled industrial parks in attracting foreign investments into the emerging Asian economies to capitalize on cheap and abundant resources has led, pari passu, to a mushrooming of similarly-patterned competitor parks in close proximity to the flagship projects. Many of the competitor parks offer either similar or comparable facilities, lower rates, or, in some cases, both. The ensuing dynamic competitive interactions between the competitor parks and the Singapore-styled parks have forced a re-examination of the viability of the Singapore advantage in navigating the economics of competition, and in sustaining competitive advantage. The Vietnam-Singapore Industrial Park (VSIP), unsurprisingly, …

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Social Network Discovery By Mining Spatio-Temporal Events, Hady Lauw, Ee Peng Lim, Hwee Hwa Pang, Teck-Tim Tan Jul 2005

Social Network Discovery By Mining Spatio-Temporal Events, Hady Lauw, Ee Peng Lim, Hwee Hwa Pang, Teck-Tim Tan

Research Collection School Of Computing and Information Systems

Knowing patterns of relationship in a social network is very useful for law enforcement agencies to investigate collaborations among criminals, for businesses to exploit relationships to sell products, or for individuals who wish to network with others. After all, it is not just what you know, but also whom you know, that matters. However, finding out who is related to whom on a large scale is a complex problem. Asking every single individual would be impractical, given the huge number of individuals and the changing dynamics of relationships. Recent advancement in technology has allowed more data about activities of individuals …

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Intraday Stock Prices, Volume, And Duration: A Nonparametric Conditional Duration Analysis, Anthony Tay Jul 2005

Intraday Stock Prices, Volume, And Duration: A Nonparametric Conditional Duration Analysis, Anthony Tay

Research Collection School Of Economics

We investigate the distribution of high-frequency price changes, conditional on trading volume and duration between trades, on four stocks traded on the New York Stock Exchange. The conditional probabilities are estimated nonparametrically using local polynomial regression methods. We find substantial skewness in the distribution of price changes, with the direction of skewness dependent on the sign of trade. We also find that the probability of larger price changes increases with volume, but only for trades that occur with longer durations. The distribution of price changes vary with duration primarily when volume is high.

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Micro-Level Estimation Of Child Malnutrition Indicators And Its Application In Cambodia, Tomoki Fujii Jul 2005

Micro-Level Estimation Of Child Malnutrition Indicators And Its Application In Cambodia, Tomoki Fujii

Research Collection School Of Economics

One of the major limitations in addressing child malnutrition is lack of information that could be used to target resources. By combining demographic and health survey (DHS) and population census data, the author disaggregates the estimates of the prevalence of child malnutrition in Cambodia from currently available 17 DHS strata into 1,594 communes. The methodology is built on the small-area estimation technique developed by Elbers, Lanjouw, and Lanjouw. The author extends it to jointly estimate multiple indicators and to allow for a richer structure of error terms. Average standard errors for the commune-level estimates in this study were about 4 …

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Protection For Sale Under Monopolistic Competition, Pao Li Chang Jul 2005

Protection For Sale Under Monopolistic Competition, Pao Li Chang

Research Collection School Of Economics

This paper broadens the protection for sale model of Grossman and Helpman (1994) by incorporating the Krugman–Dixit–Stiglitz model of monopolistic competition, given its importance in explaining the prevalence of intraindustry trade. Several new results arise in this paper. First, the endogenous import tariff will never fall below zero, even in unorganized sectors. Second, the endogenous export policy for organized sectors is not necessarily an export subsidy, and can be an export tax as in unorganized sectors. Third, the level of import protection varies inversely with the degree of import penetration, regardless of whether the sector is organized or not.

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Re-Engineering Economic Space: The Case Of Singapore's Transborder Industrialization 'Experiments' In Asia, Caroline Yeoh, Wilfred Pow Ngee How, Di Kun Goh Jul 2005

Re-Engineering Economic Space: The Case Of Singapore's Transborder Industrialization 'Experiments' In Asia, Caroline Yeoh, Wilfred Pow Ngee How, Di Kun Goh

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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Enclaves For Enterprise: An Empirical Study Of Singapore's Industrial Parks In Indonesia, Vietnam And China, Caroline Yeoh, Wilfred Pow Ngee How, Ai Lin Leong Jul 2005

Enclaves For Enterprise: An Empirical Study Of Singapore's Industrial Parks In Indonesia, Vietnam And China, Caroline Yeoh, Wilfred Pow Ngee How, Ai Lin Leong

Research Collection Lee Kong Chian School Of Business

The dynamics of globalization have prompted governments to re-examine accustomed policies, and search for alternative strategies, in order to re-position their economies for the future. This paper explores the spatial context of state involvement in the new economics of competition, with the focus on Singapore’s much publicized, and controversial, orchestration of its state enterprise network to encapsulate economic space for Singapore-based firms to expand into the Asian region. This strategic initiative is promulgated on the exportability of Singapore’s ‘state credibility’, systemic and operational efficiencies, and technological competencies, to locations where these attributes are less certain. A logit model is applied …

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An Informatization Of Society Approach To E-Government: Analyzing Singapore’S E-Government Efforts, Calvin M. L. Chan, Yi Meng Lau Jul 2005

An Informatization Of Society Approach To E-Government: Analyzing Singapore’S E-Government Efforts, Calvin M. L. Chan, Yi Meng Lau

Research Collection School Of Computing and Information Systems

Despite the much publicized benefits of e-government, many countries are experiencing difficulty in yielding success in their e-government initiatives. Studies which adopt the national e-government initiatives as the unit of analysis remain largely rare. This paper aspires to provide an analysis of Singapore’s widely acclaimed success in the e-government effort at the national level to allow other countries to learn and gain from its experience. Using the ‘Conceptual Framework for the Informatization of Society’ in facilitating the data analysis, implications are drawn to offer insights for the considerations of e-government practitioners. Theoretical implications are also derived through positing that the …

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Landmark City Campus Officially Handed Over - Smu To Launch Year-Long Celebratory Programme, Singapore Management University Jun 2005

Landmark City Campus Officially Handed Over - Smu To Launch Year-Long Celebratory Programme, Singapore Management University

SMU Press Releases

No abstract provided.

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Optimal Sequential Decision Architectures And The Robustness Of Hierarchies And Polyarchies, Winston T. H. Koh Jun 2005

Optimal Sequential Decision Architectures And The Robustness Of Hierarchies And Polyarchies, Winston T. H. Koh

Research Collection School Of Economics

This paper studies collective decision making in the context of a project selection model. We derive the optimal decision architecture in the presence of marginal decision costs, and investigate the circumstances under which the hierarchy and polyarchy emerge as optimal sequential architectures. Our analysis extends previous results on optimal organizational decision-making to a sequential setting, and further demonstrates the fragility of the hierarchy and polyarchy as optimal architectures.

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Learning Outcomes Oriented Assessment Methods In An Active Learning Environment, Arcot Desai Narasimhalu Jun 2005

Learning Outcomes Oriented Assessment Methods In An Active Learning Environment, Arcot Desai Narasimhalu

Research Collection School Of Computing and Information Systems

Singapore Management University uses interactive seminar style teaching in class rooms. Most of its students hail from Singapore and are generally new to active learning and constructive participation in the seminar style classes. This paper reports findings from a freshmen first term course titled IS 101: Seminar for ISM Majors.

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Trade, Capital Accumulation And Structural Unemployment: An Empirical Study Of The Singapore Economy, Hiau Looi Kee, Hian Teck Hoon Jun 2005

Trade, Capital Accumulation And Structural Unemployment: An Empirical Study Of The Singapore Economy, Hiau Looi Kee, Hian Teck Hoon

Research Collection School Of Economics

This paper studies the factors responsible for the secular decline of Singapore's unemployment rate over the period 1966-2000 in an environment of low and stable inflation rates. We introduce wage bargaining and unions into a specific-factors, two-sector economy with an export sector and a non-tradable sector to obtain an endogenous natural unemployment rate. Increases in the relative export price and capital stock in the export sector are predicted to reduce structural unemployment. These hypotheses could not be rejected based on structural estimations and co-integration regressions. Empirically, capital accumulation in the export sector explains most of the decline in Singapore's unemployment …

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Jackknifing Bond Option Prices, Peter C. B. Phillips, Jun Yu Jun 2005

Jackknifing Bond Option Prices, Peter C. B. Phillips, Jun Yu

Research Collection School Of Economics

Prices of interest rate derivative securities depend crucially on the mean reversion parameters of the underlying diffusions. These parameters are subject to estimation bias when standard methods are used. The estimation bias can be substantial even in very large samples and much more serious than the discretization bias, and it translates into a bias in pricing bond options and other derivative securities that is important in practical work. This article proposes a very general and computationally inexpensive method of bias reduction that is based on Quenouille's (1956; Biometrika, 43, 353-360) jackknife. We show how the method can be applied directly …

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Mapping The Irish Policy Space: Voter And Party Spaces In Preferential Elections, Kenneth Benoit, Michael Laver Jun 2005

Mapping The Irish Policy Space: Voter And Party Spaces In Preferential Elections, Kenneth Benoit, Michael Laver

Research Collection School of Social Sciences

In this note we map the Irish policy space, locating both voters and parties on the most salient policy dimensions in Ireland. Estimates of the voter locations are based on the Irish National Election Survey (INES), conducted in 2002. Estimates of the party positions are based on an expert survey of party positions conducted by the authors in late 2002. We show that respondent self-placements on a priori policy scales are highly biased and difficult to interpret, and we rely instead on building scale positions for respondents from their answers to relevant attitude questions in the INES. The results provide …

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Exporting Expertise: Singapore's Gambit In Vietnam Revisited, Caroline Yeoh, Ai Lin Leong, Xun Cai Jun 2005

Exporting Expertise: Singapore's Gambit In Vietnam Revisited, Caroline Yeoh, Ai Lin Leong, Xun Cai

Research Collection Lee Kong Chian School Of Business

Infrastructure can be unreliable and administration subject to corruption in Asia’s rapidly emerging economies. This context presented Singapore with unique opportunities to export its expertise to locations where these attributes are less certain, through the provision of superior infrastructure, the ability to negotiate investment concessions and, where existing, through the links to influential business groups in the investment location. This strategic initiative is further premised on the perception that Singapore’s positive reputation with multinationals, as well as ‘guanxi’, or connections, with Asian business networks, will give the industrial-township projects a marketing advantage. Their progress is a litmus test of Singapore’s …

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On Assigning Place Names To Geography Related Web Pages, Wenbo Zong, Dan Wu, Aixin Sun, Ee Peng Lim, Dion Hoe-Lian Goh Jun 2005

On Assigning Place Names To Geography Related Web Pages, Wenbo Zong, Dan Wu, Aixin Sun, Ee Peng Lim, Dion Hoe-Lian Goh

Research Collection School Of Computing and Information Systems

In this paper, we attempt to give spatial semantics to web pages by assigning them place names. The entire assignment task is divided into three sub-problems, namely place name extraction, place name disambiguation and place name assignment. We propose our approaches to address these sub-problems. In particular, we have modified GATE, a well-known named entity extraction software, to perform place name extraction using a US Census gazetteer. A rule-based place name disambiguation method and a place name assignment method capable of assigning place names to web page segments have also been proposed. We have evaluated our proposed disambiguation and assignment …

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Evaluating G-Portal For Geography Learning And Teaching, Chew-Hung Chang, John G. Hedberg, Yin-Leng Theng, Ee Peng Lim, Tiong-Sa Teh, Dion Hoe-Lian Goh Jun 2005

Evaluating G-Portal For Geography Learning And Teaching, Chew-Hung Chang, John G. Hedberg, Yin-Leng Theng, Ee Peng Lim, Tiong-Sa Teh, Dion Hoe-Lian Goh

Research Collection School Of Computing and Information Systems

This paper describes G-Portal, a geospatial digital library of geographical assets, providing an interactive platform to engage students in active manipulation and analysis of information resources and collaborative learning activities. Using a G-Portal application in which students conducted a field study of an environmental problem of beach erosion and sea level rise, we describe a pilot study to evaluate usefulness and usability issues to support the learning of geographical concepts, and in turn teaching.

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