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Articles 5011 - 5040 of 9289

Full-Text Articles in Social and Behavioral Sciences

Efficient Community Maintenance For Dynamic Social Networks, Hongchao Qin, Ye Yuan, Feida Zhu, Guoren Wang Sep 2016

Efficient Community Maintenance For Dynamic Social Networks, Hongchao Qin, Ye Yuan, Feida Zhu, Guoren Wang

Research Collection School Of Computing and Information Systems

Community detection plays an important role in a wide range of research topics for social networks including personalized recommendation services and information dissemination. The highly dynamic nature of social platforms, and accordingly the constant updates to the underlying network, all present a serious challenge for efficient maintenance of the identified communities. How to avoid computing from scratch the whole community detection result in face of every update, which constitutes small changes more often than not. To solve this problem, we propose a novel and efficient algorithm to maintain the communities in dynamic social networks by identifying and updating only those …

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Microblogging Content Propagation Modeling Using Topic-Specific Behavioral Factors, Tuan Anh Hoang, Ee-Peng Lim Sep 2016

Microblogging Content Propagation Modeling Using Topic-Specific Behavioral Factors, Tuan Anh Hoang, Ee-Peng Lim

Research Collection School Of Computing and Information Systems

When a microblogging user adopts some content propagated to her, we can attribute that to three behavioral factors, namely, topic virality, user virality, and user susceptibility. Topic virality measures the degree to which a topic attracts propagations by users. User virality and susceptibility refer to the ability of a user to propagate content to other users, and the propensity of a user adopting content propagated to her, respectively. In this paper, we study the problem of mining these behavioral factors specific to topics from microblogging content propagation data. We first construct a three dimensional tensor for representing the propagation instances. …

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Is Only One Gps Position Sufficient To Locate You To The Road Network Accurately?, Hao Wu, Weiwei Sun, Baihua Zheng Sep 2016

Is Only One Gps Position Sufficient To Locate You To The Road Network Accurately?, Hao Wu, Weiwei Sun, Baihua Zheng

Research Collection School Of Computing and Information Systems

Locating only one GPS position to a road segment accurately is crucial to many location-based services such as mobile taxihailing service, geo-tagging, POI check-in, etc. This problem is challenging because of errors including the GPS errors and the digital map errors (misalignment and the same representation of bidirectional roads) and a lack of context information. To the best of our knowledge, no existing work studies this problem directly and the work to reduce GPS signal errors by considering hardware aspect is the most relevant. Consequently, this work is the first attempt to solve the problem of locating one GPS position …

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Human-Scale Economics: Economic Growth And Poverty Reduction In Northeastern Thailand, Joel D. Moore, John A. Donaldson Sep 2016

Human-Scale Economics: Economic Growth And Poverty Reduction In Northeastern Thailand, Joel D. Moore, John A. Donaldson

Research Collection School of Social Sciences

Under what conditions does economic growth benefit the poor? One way to answer this question is to identify and compare positive and negative outlier areas, those that experience greater and lesser poverty reduction, respectively, compared to what was anticipated given their levels of economic growth. The more similar these areas, the more leverage there is to unearth the factors that allow the poor to benefit from growth. In this paper, we employ an inductive approach to glean possible pathways out of poverty from two highly similar underdeveloped neighboring provinces in northeastern Thailand. Using extensive fieldwork and interviews, we explore factors …

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Sympathy Fuels Creativity: The Beneficial Effects Of Sympathy On Originality, Hwajin Yang, Sujin Yang Sep 2016

Sympathy Fuels Creativity: The Beneficial Effects Of Sympathy On Originality, Hwajin Yang, Sujin Yang

Research Collection School of Social Sciences

Sympathy is usually evoked by heightened awareness of and concern for others' suffering by perceiving or reacting to their distress or need. Sympathetic contexts appear to spur creative solutions, because those who react sympathetically to others' suffering tend to seek novel, desirable, and prosocial solutions that alleviate suffering and promote well-being. We conducted two studies to investigate whether sympathy enhances creativity. Study 1 tested the feasibility of using images of distressed elderly as an unobtrusive method to induce sympathy. Study 2 sought to determine whether induced sympathy promotes creativity, and whether individual differences in trait empathy moderate this effect. Results …

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A Review Of Knowledge Ltd: Towards A Social Logic Of The Derivative, Hiro Saito Sep 2016

A Review Of Knowledge Ltd: Towards A Social Logic Of The Derivative, Hiro Saito

Research Collection School of Social Sciences

California program for paid family leave.They find that higher-wage employees aremore likely to gain such benefits and to usethem, while low-wage workers are less likelyto have them available or know about themand are less likely to use them, because theprogram does not pay enough or providejob protection.

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How Agribusiness Can Win In Partnership With Small Farms, John A. Donaldson Sep 2016

How Agribusiness Can Win In Partnership With Small Farms, John A. Donaldson

Research Collection School of Social Sciences

Can large-scale agribusiness reduce costs and obtain less-expensive food while also reducing poverty and inequality by engaging small-scale farmers? Many conclude that such an attractive outcome is unimaginable, but innovative pilot projects hold promise that such a reality is within reach and replicable.

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Addressing The Implementation Gap: An Integrated Approach To Identifying Barriers And Facilitators To Flexi Work Arrangements In Singapore, Paulin Tay Straughan, Mindy E Tadai Sep 2016

Addressing The Implementation Gap: An Integrated Approach To Identifying Barriers And Facilitators To Flexi Work Arrangements In Singapore, Paulin Tay Straughan, Mindy E Tadai

Research Collection School of Social Sciences

This article addresses the implementation gap in the provision of work—life policies in Singapore. While both employers and government in principle endorse the ideology of flexibility in the work place, this has not yet translated into widely adopted policies. This study examines barriers and facilitators to part-time work, and highlights organisational and managerial factors contributing to the implementation gap. It is imperative in ageing societies with declining fertility rates that flexibility be mainstreamed to encourage optimum labour force participation. For both married women with childcare responsibilities and older adults, flexiwork is central to their continued economic participation. In particular, part-time …

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Elected Presidency Changes: It’S Not Just About The Politics, David Chan Sep 2016

Elected Presidency Changes: It’S Not Just About The Politics, David Chan

Research Collection School of Social Sciences

The debate about the elected presidency(EP) is driven not just by politics and the law,but by perceptions, values and notions offairness. Policymakers and the public need toengage on these for fruitful discussions.

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Sex Similarities Versus Gender Symmetry, Jose C. Yong, Norman P. Li Sep 2016

Sex Similarities Versus Gender Symmetry, Jose C. Yong, Norman P. Li

Research Collection School of Social Sciences

Men and women have similar and different mate preferences, which include preferences for type of relationship duration as well as the types of traits that are sought out within each mating duration. This entry covers some of the key similarities and differences in preferences for both mating context and partner traits within context.

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Managing Trade Conflicts In The Ict Industry: A Case Study Of Eu-Greater China Area, Han-Wei Liu, Shin-Yi Peng Sep 2016

Managing Trade Conflicts In The Ict Industry: A Case Study Of Eu-Greater China Area, Han-Wei Liu, Shin-Yi Peng

Research Collection Yong Pung How School Of Law

Trade policy is formulated through a rather complex decision-making process that involves two-way interactions between actors in public and private sectors. Such interactions are of particular importance in resolving trade controversies in the information and communication technology (ICT) sector. Focusing on the conflicts between the EU and its trading partners in the Greater China Area regarding certain innovation policies in this high-tech industry, this Article underscores how catch-up strategies adopted by latecomer economies in East Asia may implicate the world trade order in recent years. Loosely built upon the insights of public-private network theory, this Article identifies key variables—economic, legal, …

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Lessons For Singapore From Schooling’S Win, David Chan Sep 2016

Lessons For Singapore From Schooling’S Win, David Chan

Research Collection School of Social Sciences

Joseph Schooling’s gold medal win at theRio Olympics over the weekend highlightsthe achievements of human potential andthe indomitable spirit of human nature

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Exploring A New Frontier In Singapore's Private International Law: Im Skaugen Se V Man Diesel & Turbo Se [2016] Sghcr 6, Wei Yao, Kenny Chng Sep 2016

Exploring A New Frontier In Singapore's Private International Law: Im Skaugen Se V Man Diesel & Turbo Se [2016] Sghcr 6, Wei Yao, Kenny Chng

Research Collection Yong Pung How School Of Law

The establishment of the Singapore International Commercial Court (“SICC”) marks a significant development in Singapore’s private international law. This note leverages on the Singapore High Court decision of IM Skaugen SE v MAN Diesel & Turbo SE [2016] SGHCR 6 to discuss two key issues raised by the SICC: the relationship between the Singapore High Court’s and the SICC’s jurisdictional rules, and the applicable test for the exercise of the SICC’s jurisdiction. This note argues that the possibility of a transfer to the SICC should influence the High Court’s exercise of its international jurisdiction, and that the SICC should not …

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Registered Replication Report: Study 1 From Finkel, Rusbult, Kumashiro, & Hannon (2002), I Et Al. Cheung Sep 2016

Registered Replication Report: Study 1 From Finkel, Rusbult, Kumashiro, & Hannon (2002), I Et Al. Cheung

Research Collection School of Social Sciences

Finkel, Rusbult, Kumashiro, and Hannon (2002, Study 1) demonstrated a causal link between subjective commitment to a relationship and how people responded to hypothetical betrayals of that relationship. Participants primed to think about their commitment to their partner (high commitment) reacted to the betrayals with reduced exit and neglect responses relative to those primed to think about their independence from their partner (low commitment). The priming manipulation did not affect constructive voice and loyalty responses. Although other studies have demonstrated a correlation between subjective commitment and responses to betrayal, this study provides the only experimental evidence that inducing changes to …

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Market Failure And Reemergence: A Study Of Chinese Firms Listed In The Us., Hai Lu, Hai Lu, Wei Luo Sep 2016

Market Failure And Reemergence: A Study Of Chinese Firms Listed In The Us., Hai Lu, Hai Lu, Wei Luo

Research Collection School Of Accountancy

Our study documents a “Lemons” market failure of Chinese firms listed in the US in 2011 and a subsequent rebound by 2013. Our tests reveal that there was little difference in ex ante observable characteristics of fraudulent and non-fraudulent Chinese firms listed in the US prior to 2011 while entrepreneurs appear to have known their type. We document substantial costs of dishonesty and the failure of traditional market signaling mechanisms such as auditor or underwriter quality. We also show a return of Chinese firms after US and Chinese regulatory intervention in 2013 although this intervention was insufficient to fundamentally change …

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Between Judicial Oligarchy And Parliamentary Supremacy: Understanding The Court's Dilemma In Constitutional Judicial Review, Seow Hon Tan Sep 2016

Between Judicial Oligarchy And Parliamentary Supremacy: Understanding The Court's Dilemma In Constitutional Judicial Review, Seow Hon Tan

Research Collection Yong Pung How School Of Law

This article considers the dilemma that constitutional judicial review presents to the most well-meaning of judges — that of navigating the narrow and difficult road between parliamentary supremacy and judicial oligarchy. It examines the Singapore Court of Appeal’s delineation of legal and extra-legal considerations in view of Ronald Dworkin’s theory of adjudication in determining the constitutionality of section 377A of the Penal Code in Lim Meng Suang v. Attorney General. It proposes an alternative natural law approach to constitutional judicial review based on Radbruch’s formula, which helps courts to avoid the pitfalls of judicial idiosyncrasies and usurpation of legislative mandate …

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Reserved Election: Boost For Multiracialism?, Tan K. B. Eugene Sep 2016

Reserved Election: Boost For Multiracialism?, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

Singapore is on the threshold of the most significant re-engineering to its constitutional architecture since the introduction of the Elected Presidency (EP) in 1991.

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Asset Pricing With Financial Bubble Risk, Ji Hyung Lee, Peter C. B. Phillips Sep 2016

Asset Pricing With Financial Bubble Risk, Ji Hyung Lee, Peter C. B. Phillips

Research Collection School Of Economics

This paper characterizes systematic risk stemming from the possible occurrence of price bubbles and measures the impact of this additional risk factor on asset prices. Historical stock market behavior and recent empirical experience have led economists and policy makers to acknowledge that price bubbles in financial markets do occur and need to be accounted for in risk analysis. New econometric tools for analyzing mildly explosive behavior (Phillips and Magdalinos, 2007; Phillips et al., 2011) have made it possible to detect the presence of bubbles in data and to date stamp their origination and collapse, providing empirical confirmation of such episodes …

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Associationistic Luce Rule, Jiangtao Li, Rui Tang Sep 2016

Associationistic Luce Rule, Jiangtao Li, Rui Tang

Research Collection School Of Economics

We develop an extension of Luce’s random choice model that incorporates a role forthe association of alternatives. Each alternative is characterized by a salience value, aLuce value, and its associated alternatives. The salience value captures the alternative’sability to attract the decision maker’s attention, and the Luce value measures thealternative’s desirability. The decision maker is first attracted by some alternativeaccording to a salience-based Luce-type formula, and then chooses among its associatedalternatives according to another desirability-based Luce-type formula. While retainingthe simplicity of the Luce rule, the theory accommodates some well-known behavioralphenomena in individual choice, such as the attraction effect (violations of regularity),and …

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Did Bp Atone For Its Transgressions? Expanding Theory Of “Ethical Apology In Crisis Communication, Audra Diers-Lawson, Augustine Pang Sep 2016

Did Bp Atone For Its Transgressions? Expanding Theory Of “Ethical Apology In Crisis Communication, Audra Diers-Lawson, Augustine Pang

Research Collection Lee Kong Chian School Of Business

Ethical communication during crisis response is often assessed by external perceptions of the organization's intentions, rather than an assessment of the organization's communicative behaviors. This can easily lead researchers to draw editorial conclusions about an organization's ethics in crisis response rather than accurately describing its communicative behaviors. The case of BP's 2010 oil spill in the Gulf of Mexico provides a prime example for the importance of accurately assessing the ethical content of an organization's crisis response because the ethics of BP's response have been discussed in news and academic sources; yet little direct examination of the ethical content in …

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Incense Burning During Pregnancy And Birth Weight And Head Circumference Among Term Births: The Taiwan Birth Cohort Study, Le-Yu Chen, Christine Ho Sep 2016

Incense Burning During Pregnancy And Birth Weight And Head Circumference Among Term Births: The Taiwan Birth Cohort Study, Le-Yu Chen, Christine Ho

Research Collection School Of Economics

Incense burning for rituals or religious purposes is an important tradition in many countries. However, incense smoke contains particulate matter and gas products such as carbon monoxide, sulfur and nitrogen dioxide, which are potentially harmful to health. We analyzed the relationship between prenatal incense burning and birth weight and head circumference at birth using the Taiwan Birth Cohort Study. We performed multivariate regression analysis on a sample of 15,773 Taiwanese babies born in 2005 and controlled extensively for factors that may be correlated with incense burning and birth outcomes. Prenatal incense burning environment was associated with lower birth weight and …

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Textual Analysis And Machine Leaning: Crack Unstructured Data In Finance And Accounting, Li Guo, Feng Shi, Jun Tu Sep 2016

Textual Analysis And Machine Leaning: Crack Unstructured Data In Finance And Accounting, Li Guo, Feng Shi, Jun Tu

Research Collection Lee Kong Chian School Of Business

In finance and accounting, relative to quantitative methods traditionally used, textual analysis becomes popular recently despite of its substantially less precise manner. In an overview of the literature, we describe various methods used in textual analysis, especially machine learning. By comparing their classification performance, we find that neural network outperforms many other machine learning techniques in classifying news category. Moreover, we highlight that there are many challenges left for future development of textual analysis, such as identifying multiple objects within one single document.

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Modeling Speculative Bubbles With Diverse Investor Expectations, Peter C. B. Phillips Sep 2016

Modeling Speculative Bubbles With Diverse Investor Expectations, Peter C. B. Phillips

Research Collection School Of Economics

We construct a model of asset market exuberance, collapse and recovery using subjective investor-based rational expectations about the impact of fundamentals on the market price. Investors are assumed to have heterogeneous market sentiments, allowing them to be exuberant, cautious, or fundamentalist via boundary conditions that describe their respective views of the market impact of the same economic fundamentals. Equilibrium solution paths of the model take varying forms, depending on the parameter settings that reflect the importance of each type of market participant. This rational expectations model of asset pricing is shown to be consistent with a simple explosive continuous time …

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What 100,000 Tweets About The Volkswagen Scandal Tell Us About Angry Customers, Vanitha Swaminathan, Suyun Mah Sep 2016

What 100,000 Tweets About The Volkswagen Scandal Tell Us About Angry Customers, Vanitha Swaminathan, Suyun Mah

Research Collection Lee Kong Chian School Of Business

In September 2015 the Environmental Protection Agency found that many Volkswagen cars sold in the United States were equipped with software that could falsely improve the performance of diesel engines on emissions tests. This cheating was subsequently acknowledged by the car maker.Among the many issues at stake for the company was one of public perception. Anecdotal evidence at the time of the incident suggested irreparable harm to the Volkswagen brand. So could Volkswagen recover in the short term in this regard? And, the broader question, how can you measure brand perception in times of scandal, particularly in an era where …

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Asymptotic Theory For Estimating The Persistent Parameter In The Fractional Vasicek Model, Weilin Xiao, Jun Yu Sep 2016

Asymptotic Theory For Estimating The Persistent Parameter In The Fractional Vasicek Model, Weilin Xiao, Jun Yu

Research Collection School Of Economics

This paper develops the asymptotic theory for the least squares (LS) estimator of the persistent parameter in the fractional Vasicek model when a continuous record of observations is available. The fractional Vasicek model is assumed to be driven by the fractional Brownian motion with a known Hurst parameter greater than or equal to one half. It is shown that the asymptotic properties depend on the sign of the persistent parameter, corresponding to the stationary case, the explosive case and the null recurrent case. The strong consistency and the asymptotic distribution are obtained in all three cases.

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Climate Change And Vulnerability To Poverty: An Empirical Investigation In Rural Indonesia, Tomoki Fujii Sep 2016

Climate Change And Vulnerability To Poverty: An Empirical Investigation In Rural Indonesia, Tomoki Fujii

Research Collection School Of Economics

Scientists estimate that anthropogenic climate change leads to increased surface temperature, sea-level rise, more frequent and significant extreme weather and climate events, among others. In this study, we investigate how climate change can potentially change the vulnerability to poverty using a panel data set in Indonesia. We focus on the effect of drought and flood, two of the commonly observed disasters there. Our simulation results indicate that vulnerability to poverty may increase substantially as a result of climate change in Indonesia.

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Concepts And Measurement Of Vulnerability To Poverty And Other Issues: A Review Of Literature, Tomoki Fujii Sep 2016

Concepts And Measurement Of Vulnerability To Poverty And Other Issues: A Review Of Literature, Tomoki Fujii

Research Collection School Of Economics

This paper reviews the growing body of literature on vulnerability. We first provide a survey of existing studies on the concepts and measurements of vulnerability to poverty by classifying them into welfarist, expected poverty, and axiomatic approaches. We then review a number of empirical studies on vulnerability to poverty in Asia and elsewhere. This review shows that poverty and vulnerability are related, but different, and that key determinants of vulnerability often include education and location. We also briefly review other areas of vulnerability analysis such as vulnerability to climate change and offer various policy implications arising from vulnerability analysis.

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Asset Pricing With Financial Bubble Risk, Ji Hyung Lee, Peter C. B. Phillips Sep 2016

Asset Pricing With Financial Bubble Risk, Ji Hyung Lee, Peter C. B. Phillips

Research Collection School Of Economics

This paper characterizes systematic risk stemming from the possible occurrence of price bubbles and measures the impact of this additional risk factor on asset prices. Historical stock market behavior and recent empirical experience have led economists and policy makers to acknowledge that price bubbles in financial markets do occur and need to be accounted for in risk analysis. New econometric tools for analyzing mildly explosive behavior (Phillips and Magdalinos, 2007; Phillips et al., 2011) have made it possible to detect the presence of bubbles in data and to date stamp their origination and collapse, providing empirical confirmation of such episodes …

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Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide Sep 2016

Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide

Research Collection School Of Economics

It is costly to collect the household- and individual-level data that underlies official estimates of poverty and health. For this reason, developing countries often do not have the budget to update their estimates of poverty and health regularly, even though these estimates are most needed there. One way to reduce the financial burden is to substitute some of the real data with predicted data. An approach referred to as double sampling collects the expensive outcome variable for a sub-sample only while collecting the covariates used for prediction for the full sample. The objective of this study is to determine if …

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Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide Sep 2016

Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide

Research Collection School Of Economics

It is costly to collect the household- andindividual-level data that underlies official estimates of poverty and health. Forthis reason, developing countries often do not have the budget to update their estimatesof poverty and health regularly, even though these estimates are most neededthere. One way to reduce the financial burden is to substitute some of the realdata with predicted data. An approach referred to as double sampling collectsthe expensive outcome variable for a sub-sample only while collecting thecovariates used for prediction for the full sample. The objective of this studyis to determine if this would indeed allow for realizing meaningful reductionsin …

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