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Articles 6331 - 6360 of 8706
Full-Text Articles in Entire DC Network
Designing And Implementing An Evaluation Of A National Work Support Program, Kong Weng Ho, Irene Y. H. Ng, Thartmalingam Nesamani, Alex Lee, Tee Liang Ngiam
Designing And Implementing An Evaluation Of A National Work Support Program, Kong Weng Ho, Irene Y. H. Ng, Thartmalingam Nesamani, Alex Lee, Tee Liang Ngiam
Research Collection School Of Economics
Welfare reforms in the 1990s have shifted governments around the world towards financial assistance conditional on work. While large-scale rigorous research on welfare-to-work programs has demonstrated effectiveness towards employment in other countries, no such micro-level evaluation of a policy has ever been conducted in Singapore. This article describes the process of developing a large experimental evaluation of the Work Support Program, which the Ministry of Community Development, Youth and Sports started in 2006. The lessons learned from planning and implementing the research can be helpful to future researchers in negotiating long-term rigorous evaluations in an environment where collaborators lack sufficient …
The Party's Over: The Role Of Earnings Guidance In Resolving Sentiment-Driven Overvaluation, Nicholas Seybert, Holly I. Yang
The Party's Over: The Role Of Earnings Guidance In Resolving Sentiment-Driven Overvaluation, Nicholas Seybert, Holly I. Yang
Research Collection School Of Accountancy
This paper shows that an important link between investor sentiment and firm over valuation is optimistic earnings expectations, and that management earnings guidance helps resolve sentiment-driven overvaluation. Using previously identified firm characteristics, we find that most of the negative returns to uncertain firms in months following high-sentiment periods fall within the three-day window around the issuance of management earnings guidance. Comparisons of guidance months to nonguidance months show that guidance issuance affects the magnitude and not just the daily distribution of negative returns. There is also some evidence of negative returns around earnings announcements for firms that previously issued guidance, …
Mitigating The True Cost Of Advertisement-Supported "Free" Mobile Applications, Azeem J. Khan, Vigneshwaran Subbaraju, Archan Misra, Srinivasan Seshan
Mitigating The True Cost Of Advertisement-Supported "Free" Mobile Applications, Azeem J. Khan, Vigneshwaran Subbaraju, Archan Misra, Srinivasan Seshan
Research Collection School Of Computing and Information Systems
The dominant, "ad-supported free application" model for consumer-oriented mobile computing is seemingly imperiled by the growing global adoption of metered data pricing plans by mobile operators. In this paper, we explore the opportunities for addressing this emerging conflict by enabling more intelligent ad delivery to such mobile devices. One especially promising path is leveraging the increasing availability of heterogeneous wireless access technologies (e.g., WiFi, femtocells) that offer less restrictive and more energy-efficient transport substrates for such data traffic. To understand the possibilities that exist, we first profile the advertisement traffic characteristics for some of the most popular advertisement-supported consumer applications, …
Revisiting The Dragon: The State Of Singapore’S Regionalization Into China, Caroline Yeoh, Wilfred Pow Ngee How, Febbry Lasgon
Revisiting The Dragon: The State Of Singapore’S Regionalization Into China, Caroline Yeoh, Wilfred Pow Ngee How, Febbry Lasgon
Research Collection Lee Kong Chian School Of Business
Many years on, with the main thrust of Singapore's internationalization efforts now pointed elsewhere, the current state of Singapore's state-enterprise network in previous main regions of interest, most notably ever-developing China, remains an area of interest for the purpose of evaluating the city-state's determined efforts to encapsulate economic space for its businesses on foreign soil – perhaps with lessons of relevance to the city-state's latest areas of focus, and certainly of relevance to efforts in the long-term. As a study related to our papers on this topic, we revisit the sprawling sub-continent and the operations of Singapore businesses located therein. …
Summarizing Rushes Videos By Motion, Object, And Event Understanding, Feng Wang, Chong-Wah Ngo
Summarizing Rushes Videos By Motion, Object, And Event Understanding, Feng Wang, Chong-Wah Ngo
Research Collection School Of Computing and Information Systems
Rushes footages are considered as cheap gold mine with the potential for reuse in broadcasting and filmmaking industries. However, mining "gold" from unedited videos such as rushes is challenging as the reusable segments are buried in a large set of redundant information. In this paper, we propose a unified framework for stock footage classification and summarization to support video editors in navigating and organizing rushes videos. Our approach is composed of two steps. First, we employ motion features to filter the undesired camera motion and locate the stock footage. A hierarchical hidden Markov model (HHMM) is proposed to model the …
Sino-Speak: Chinese Exceptionalism And The Politics Of History, William A. Callahan
Sino-Speak: Chinese Exceptionalism And The Politics Of History, William A. Callahan
Research Collection School of Social Sciences
This article examines how recent books by academics and public intellectuals reshaping the discourse of the rise of China. While earlier trends argued th China was being socialized into the norms of international society, many text now proclaim that due to its unique civilization, China will follow its own path to modernity. Such books thus look to the past - Chinas imperial history- for clues to not only Chinas future, but also the worlds future. This discourse which could be called " Sino-speak," presents an essentialized Chinese civilizati that is culturally determined to rule Asia, if not the world. The …
Vulnerability To Extreme Heat In Metropolitan Phoenix: Spatial, Temporal, And Demographic Dimensions, Winston T. L. Chow, Wen-Ching Chuang, Patricia Gober
Vulnerability To Extreme Heat In Metropolitan Phoenix: Spatial, Temporal, And Demographic Dimensions, Winston T. L. Chow, Wen-Ching Chuang, Patricia Gober
Research Collection School of Social Sciences
This study assessed the spatial distribution of vulnerability to extreme heat in 1990 and 2000 within metropolitan Phoenix based on an index of seven equally weighted measures of physical exposure and adaptive capacity. These measures were derived from spatially interpolated climate, normalized differential vegetation index, and U.S. Census data. From resulting vulnerability maps, we also analyzed population groups living in areas of high heat vulnerability. Results revealed that landscapes of heat vulnerability changed substantially in response to variations in physical and socioeconomic factors, with significant alterations to spatial distribution of vulnerability especially between eastern and western sectors of Phoenix. These …
From Clay Tablets To Ajax: Replicating Writing And Documents In Internet Transactions, Eliza Mik
From Clay Tablets To Ajax: Replicating Writing And Documents In Internet Transactions, Eliza Mik
Research Collection Yong Pung How School Of Law
This article addresses the absence of paper and the challenges of transposing the traditional legal concepts of “writing” and “document” into an environment consisting of interactive and interconnected files. Both “writing” and “documents” are concepts that rely on tangible carriers, such as paper. [FN1] Accordingly, legal principles involving either concept presume not only a certain durability, but also the stability and confinement of the information conveyed. What happens when writing is no longer contained on paper? Can writing exist without documents? Is it correct to speak of a “document” if its contents are transient and its scope is difficult to …
Bayesian Hypothesis Testing In Latent Variable Models, Yong Li, Jun Yu
Bayesian Hypothesis Testing In Latent Variable Models, Yong Li, Jun Yu
Research Collection School Of Economics
Hypothesis testing using Bayes factors (BFs) is known not to be well defined under the improper prior. In the context of latent variable models, an additional problem with BFs is that they are difficult to compute. In this paper, a new Bayesian method, based on the decision theory and the EM algorithm, is introduced to test a point hypothesis in latent variable models. The new statistic is a by-product of the Bayesian MCMC output and, hence, easy to compute. It is shown that the new statistic is appropriately defined under improper priors because the method employs a continuous loss function. …
Testing For Common Trends In Semi-Parametric Panel Data Models With Fixed Effects, Yonghui Zhang, Liangjun Su, Peter C. B. Phillips
Testing For Common Trends In Semi-Parametric Panel Data Models With Fixed Effects, Yonghui Zhang, Liangjun Su, Peter C. B. Phillips
Research Collection School Of Economics
This paper proposes a non-parametric test for common trends in semi-parametric panel data models with fixed effects based on a measure of non-parametric goodness-of-fit (R2). We first estimate the model under the null hypothesis of common trends by the method of profile least squares, and obtain the augmented residual which consistently estimates the sum of the fixed effect and the disturbance under the null. Then we run a local linear regression of the augmented residuals on a time trend and calculate the non-parametric R2 for each cross-section unit. The proposed test statistic is obtained by averaging all cross-sectional non-parametric R2s, …
Void Marriages, Maintenance, And Matrimonial Assets: Adp V Adq [2012] Sgca 6, Siyuan Chen
Void Marriages, Maintenance, And Matrimonial Assets: Adp V Adq [2012] Sgca 6, Siyuan Chen
Research Collection Yong Pung How School Of Law
Do Singapore courts have jurisdiction under the Women’s Charter to order maintenance and the division of matrimonial assets when a marriage has been declared void? This was the novel issue presented in ADP v ADQ, and the Court of Appeal answered in the affirmative.
On Limitations Of Designing Usable Leakage-Resilient Password Systems: Attacks, Principles And Usability, Qiang Yan, Jin Han, Yingjiu Li, Huijie, Robert Deng
On Limitations Of Designing Usable Leakage-Resilient Password Systems: Attacks, Principles And Usability, Qiang Yan, Jin Han, Yingjiu Li, Huijie, Robert Deng
Research Collection School Of Computing and Information Systems
The design of leakage-resilient password systems (LRPSes) in the absence of trusted devices remains a challenging problem today despite two decades of intensive research in the security community. In this paper, we investigate the inherent tradeoff between security and usability in designing LRPS. First, we demonstrate that most of the existing LRPS systems are subject to two types of generic attacks - brute force and statistical attacks, whose power has been underestimated in the literature. Second, in order to defend against these two generic attacks, we introduce five design principles that are necessary to achieve leakage resilience in the absence …
Does Complexity Deter Customer-Focus?, Sendil K. Ethiraj, Narayanasamy Ramasubbu, M. S. Krishnan
Does Complexity Deter Customer-Focus?, Sendil K. Ethiraj, Narayanasamy Ramasubbu, M. S. Krishnan
Research Collection School Of Computing and Information Systems
Economic models suggest that firms use a simple cost-benefit calculation to evaluate customer requests for new product features, but an extensive organizational literature shows the decision to implement innovation is more nuanced. We address this theoretical tension by studying how firms respond to customer requests for incremental product innovations, and how these responses change when the requested innovation is complex. Using large sample empirical analyses combined with detailed qualitative data drawn from interviews, we find considerable variance in the relationship between customer demands, complexity, and investments in incremental innovations. The qualitative study revealed the importance of organization structures, competitive pressures, …
Formal Modeling And Validation Of Stateflow Diagrams, Chunqing Chen, Jun Sun, Yang Liu, Jin Song Dong, Manchun Zheng
Formal Modeling And Validation Of Stateflow Diagrams, Chunqing Chen, Jun Sun, Yang Liu, Jin Song Dong, Manchun Zheng
Research Collection School Of Computing and Information Systems
Stateflow is an industrial tool for modeling and simulating control systems in model-based development. In this paper, we present our latest work on automatic verification of Stateflow using model-checking techniques. We propose an approach to systematically translate Stateflow diagrams to a formal modeling language called CSP# by precisely following Stateflow’s execution semantics, which is described by examples. A translator is developed inside the Process Analysis Toolkit (PAT) model checker to automate this process with the support of various Stateflow advanced modeling features. Formal analysis can be conducted on the transformed CSP# with PAT’s simulation and model-checking power. Using our approach, …
Towards A Crisis Pre-Emptive Image Management Model, Augustine Pang
Towards A Crisis Pre-Emptive Image Management Model, Augustine Pang
Research Collection Lee Kong Chian School Of Business
Purpose ‐ A good corporate image is important to organizations. However, little is elaborated on how organizations can work on their images. This study seeks to explicate the types of image management before, during, and after a crisis through the development of the crisis pre-emptive image management model. Design/methodology/approach ‐ Integrating insights from communication and marketing literature, this paper uses cases from the USA, Europe and Asia to make the concepts come alive. Findings ‐ At each stage of Wilcox and Cameron's crisis life cycle, different types of image management can take place. At the proactive stage are image creation …
Deckard - A Tree-Based, Scalable, And Accurate Code Clone Detection Tool (Version 1.2.3), Lingxiao Jiang, Ghassan Misherghi, Zhendong Su, Stephane Glondu
Deckard - A Tree-Based, Scalable, And Accurate Code Clone Detection Tool (Version 1.2.3), Lingxiao Jiang, Ghassan Misherghi, Zhendong Su, Stephane Glondu
SMU Research Data
Deckard is a tree-based, scalable, and accurate code clone detection tool. It is also capable of reporting clone-related bugs. For more information, pls refer to readme.txt. The latest version is available from Deckard repository on Github. https://github.com/skyhover/Deckard
Broadening Boards: How Directorships Should Adapt For Challenging Times, Singapore Management University
Broadening Boards: How Directorships Should Adapt For Challenging Times, Singapore Management University
Perspectives@SMU
"Will good governance lead to greater profitability and business sustainability?" This was the question that framed the lively panel discussion that involved talk on a broad range of issues, from gender diversity to boardroom theatrics.
Broadening Boards: How Directorships Should Adapt For Challenging Times, Knowledge@Smu
Broadening Boards: How Directorships Should Adapt For Challenging Times, Knowledge@Smu
Knowledge@SMU
Not only do Boards have a hand in the long term success of organisations, they are often expected to be the guardians of management – providing guidance and strategic inputs. Yet, names like Olympus, Enron, MF Global, News Corp and Hewlett Packard have turned the value of directorships on its head. To what extent should stakeholders trust Boards to look out for their interests, and is can diversity at the top really guard against the dangers of group-think? These questions were discussed at a panel discussion organised by SMU’s Office of Executive Education.
Purging Healthcare Of Conventional "Wisdom" - An Interview With Liak Teng Lit, Lien Centre For Social Innovation
Purging Healthcare Of Conventional "Wisdom" - An Interview With Liak Teng Lit, Lien Centre For Social Innovation
Social Space
Liak Teng Lit is known for his iconoclastic views and for pushing the envelope on healthcare and other social causes. Social Space visits the maverick in his award-winning Khoo Teck Puat Hospital for some wake-up calls.
Getting The Foundations Right: The Social Protection Floor Initiative, Braema Mathi
Getting The Foundations Right: The Social Protection Floor Initiative, Braema Mathi
Social Space
For a serious shot at reducing poverty, Braema Mathi urges societies, especially those in Asia, to implement the Social Protection Floor Initiative.
Expecting The Right Thing: The Imperative For Recognising Substantive Legitimate Expectations In Singapore, Siraj Aziz Shaik, Yi Siong Sui
Expecting The Right Thing: The Imperative For Recognising Substantive Legitimate Expectations In Singapore, Siraj Aziz Shaik, Yi Siong Sui
2008 Asian Business & Rule of Law initiative
Recognition of a legitimate expectation for a substantive benefit has long been fraught with controversy both within jurisdictions that do and do not adopt the doctrine. This article seeks to assess the validity and utility of the doctrine of substantive legitimate expectations as it has developed in common law jurisdictions and extrapolate a conclusion which would be of guidance as to what the Singapore position on the doctrine ought to be. This article argues that on balance the doctrine of substantive legitimate expectations is a welcome addition to the landscape of administrative law in Singapore, and that the seminal case …
The Arts As A Social Cause, Felicia Low
The Arts As A Social Cause, Felicia Low
Social Space
The arts may be quietly making waves, says Felicia Low, but much more can be done to support the movement and effect real change.
Building Situational Stimuli In Assessment Center Exercises: Do Specific Exercise Instructions And Role-Player Prompts Increase The Observability Of Behavior?, Eveline Schollaert, Filip Lievens
Building Situational Stimuli In Assessment Center Exercises: Do Specific Exercise Instructions And Role-Player Prompts Increase The Observability Of Behavior?, Eveline Schollaert, Filip Lievens
Research Collection Lee Kong Chian School Of Business
Little is known about how assessment center exercises might be designed to better elicit job-relevant behavior. This study uses trait activation theory as a theoretical lens for increasing the number of behaviors that can be observed in assessment centers. Two standardized exercise stimuli (specific exercise instructions and role-player prompts) are proposed, and their effects on the observability of candidate behavior are examined. Results showed a significant effect of role-player prompts in increasing both the general number of behavioral observations and the number of behavioral observations related to three out of four dimensions. Specific exercise instructions did not have effects on …
Accounting Flexibility And Managers’ Forecast Behavior Prior To Seasoned Equity Offerings, Jae Bum Kim
Accounting Flexibility And Managers’ Forecast Behavior Prior To Seasoned Equity Offerings, Jae Bum Kim
Research Collection School Of Accountancy
This study examines the effect of accounting flexibility on managers’ forecasting behavior prior to seasoned equity offerings(SEO). While SEO firms have strong incentives to convey optimistic information to boost the pre-SEO stock price, they also face enhanced litigation risk arising from SEO-related regulations. Thus, I hypothesize that managers of SEO firms will release optimistic forecasts prior to an SEO only if they have the accounting flexibility to manage subsequent reported earnings to meet or exceed their forecasts. I find that managers with greater accounting flexibility are more likely to issue a forecast prior to the SEO and their forecasts are …
Information Systems Procurement Process Risk And Control: Insights From A Public Sector Organization, Gary Pan, Manjari Mehta, Poh Sun Seow
Information Systems Procurement Process Risk And Control: Insights From A Public Sector Organization, Gary Pan, Manjari Mehta, Poh Sun Seow
Research Collection School Of Accountancy
This case highlights the specific risks and issues that may be encountered in the information systems (IS) procurement process in a country where bribery and corruption are more common. PSO is a large Indian public sector organization involved in energy-related business. Being financially deprived, PSO relied on government funding to build its infrastructures. Besides the funding support, PSO also inherited the bureaucratic structure and the corruption practices. Lately, PSO was involved in several IS infrastructure and applications upgrading projects and wanted to review its IS procurement process. Does PSO understand the process risks in public IS procurement? Does PSO have …
An Analytical And Empirical Measure Of The Degree Of Conditional Conservatism, Dan Segal, Jeffrey L. Callen
An Analytical And Empirical Measure Of The Degree Of Conditional Conservatism, Dan Segal, Jeffrey L. Callen
Research Collection School Of Accountancy
There is a profound gap between models of accounting conservatism and the proxies for conditional conservatism currently used by the empirical literature. Not one of the proxies employed by the empirical literature to date obtains from a rigorous definition of conditional conservatism. In contrast, this study defines conditional conservatism in terms of truncated distributions and derives analytically a nonlinear relation between revisions to returns and earnings news for the conservative firm. This nonlinear relation is shown to be mathematically equivalent to two linear relations conditioned on the firm's degree of conservatism. From these relations, we derive a model-based proxy of …
The Effects Of Political Connections On The Level And Value Of Cash Holdings: International Evidence, Yuanto Kusnadi, K.C. John Wei
The Effects Of Political Connections On The Level And Value Of Cash Holdings: International Evidence, Yuanto Kusnadi, K.C. John Wei
Research Collection School Of Accountancy
In this paper, we examine the role of political connections on corporate liquidity policies and their consequences in an international setting. We find that managers of politically connected firms have a tendency to hoard more cash than their non-connected counterparts. Moreover, presence of political connections reduces the value of cash holdings. Further analysis reveals that our main findings are more pronounced for firms in emerging markets as well as for firms in countries with weak legal protection of investors and high levels of corruption. Overall, our empirical results corroborate previous findings on the agency cost explanation for corporate cash holdings.
Crisis Response Information Networks, Shan L. Pan, Gary Pan, Dorothy Leidner
Crisis Response Information Networks, Shan L. Pan, Gary Pan, Dorothy Leidner
Research Collection School Of Accountancy
In the past two decades, organizational scholars have focused significant attention on how organizations manage crises. While most of these studies concentrate on crisis prevention, there is a growing emphasis on crisis response. Because information that is critical to crisis response may become outdated as crisis conditions change, crisis response research recognizes that the management of information flows and networks is critical to crisis response. Yet despite its importance, little is known about the various types of crisis information networks and the role of IT in enabling these information networks. Employing concepts from information flow and social network theories, this …
Investor Sentiment, Disagreement, And The Breadth Return Relationship, Hai Lu, Ling Cen, Liyan Yang
Investor Sentiment, Disagreement, And The Breadth Return Relationship, Hai Lu, Ling Cen, Liyan Yang
Research Collection School Of Accountancy
We extend the theory and empirics in Chen, Hong, and Stein (2002) by assuming that investors subject to market sentiment hold a biased belief in the aggregate. With a dynamic multi-asset model, we predict that the breadth-return relationship can be either positive or negative depending on the relative strength of two offsetting forces — disagreement and sentiment. Using the sentiment index developed in Baker and Wurgler (2006, 2007), we find evidence consistent with our predictions. The breadth-return relationship is positive when the sentiment effect is small. However, the relationship becomes negative when (i) the time-series variation of market-wide sentiment is …
Tweets And Votes: A Study Of The 2011 Singapore General Election, Marko M. Skoric, Nathaniel D. Poor, Palakorn Achananuparp, Ee Peng Lim, Jing Jiang
Tweets And Votes: A Study Of The 2011 Singapore General Election, Marko M. Skoric, Nathaniel D. Poor, Palakorn Achananuparp, Ee Peng Lim, Jing Jiang
Research Collection School Of Computing and Information Systems
This study focuses on the uses of Twitter during the elections, examining whether the messages posted online are reflective of the climate of public opinion. Using Twitter data obtained during the official campaign period of the 2011 Singapore General Election, we test the predictive power of tweets in forecasting the election results. In line with some previous studies, we find that during the elections the Twitter sphere represents a rich source of data for gauging public opinion and that the frequency of tweets mentioning names of political parties, political candidates and contested constituencies could be used to make predictions about …