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Articles 4741 - 4770 of 9289

Full-Text Articles in Social and Behavioral Sciences

How To Describe Objects?, Liu Peng Mar 2017

How To Describe Objects?, Liu Peng

Research Collection School Of Economics

This paper addresses the problem of randomly allocating n indivisible objects to n agents where each object can be evaluated according to a set of characteristics. The planner chooses a subset of characteristics and a ranking of them. Then she describes each object as a list of values according to the ranking of those chosen characteristics. Being informed of such a description, each agent figures out her preference that is lexicographically separable according to the characteristics chosen and ranked by the planner. Hence a description of the objects induces a collection of admissible preferences. We call a description good if …

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Determinants Of Urban Land Supply In China: How Do Political Factors Matter?, Wen-Tai Hsu, Xiaolu Li, Yang Tang, Jing Wu Mar 2017

Determinants Of Urban Land Supply In China: How Do Political Factors Matter?, Wen-Tai Hsu, Xiaolu Li, Yang Tang, Jing Wu

Research Collection School Of Economics

This paper explores two political factors for their potential effects on urban land supply in China: corruption, and competition for promotion. We find that standard urban economic predictions hold in the sense that both population and income increases are strongly significant determinants for the increase in urban land supply. Conditional on these demand-side factors, we find that the usage of two-stage auctions (as a proxy for corruption) is highly correlated with the increase in land supply. The corruption effects are strongest for commercial land, followed by residential land and then industrial land. To shed light on the competition motives among …

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Lag Length Selection In Panel Autoregression, Chirok Han, Peter C. B. Phillips, Donggyu Sul Mar 2017

Lag Length Selection In Panel Autoregression, Chirok Han, Peter C. B. Phillips, Donggyu Sul

Research Collection School Of Economics

Model selection by BIC is well known to be inconsistent in the presence of incidental parameters. This article shows that, somewhat surprisingly, even without fixed effects in dynamic panels BIC is inconsistent and overestimates the true lag length with considerable probability. The reason for the inconsistency is explained, and the probability of overestimation is found to be 50% asymptotically. Three alternative consistent lag selection methods are considered. Two of these modify BIC, and the third involves sequential testing. Simulations evaluate the performance of these alternative lag selection methods in finite samples.

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Joint Spatial Time Series Epidemiological Analysis Of Malaria And Cutaneous Leishmaniasis Infection, O. A. Adegboye, M. Al-Saghir, Denis H. Y. Leung Mar 2017

Joint Spatial Time Series Epidemiological Analysis Of Malaria And Cutaneous Leishmaniasis Infection, O. A. Adegboye, M. Al-Saghir, Denis H. Y. Leung

Research Collection School Of Economics

Malaria and leishmaniasis are among the two most important health problems of many developing countries especially in the Middle East and North Africa. It is common for vector-borne infectious diseases to have similar hotspots which may be attributed to the overlapping ecological distribution of the vector. Hotspot analyses were conducted to simultaneously detect the location of local hotspots and test their statistical significance. Spatial scan statistics were used to detect and test hotspots of malaria and cutaneous leishmaniasis (CL) in Afghanistan in 2009. A multivariate negative binomial model was used to simultaneously assess the effects of environmental variables on malaria …

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Econometric Reviews Honors Esfandiar Maasoumi, Peter C. B. Phillips, Aman Ullah Mar 2017

Econometric Reviews Honors Esfandiar Maasoumi, Peter C. B. Phillips, Aman Ullah

Research Collection School Of Economics

This Special Issue of Econometric Reviews (ER) is a tribute to Esfandiar Maasoumi for his longstanding contributions to the econometrics profession as an outstanding researcher, a revered teacher and supervisor, and a journal editor of three decades, all of which manifests his extraordinary devotion to the discipline of econometrics and to its growing community of students and scholars. Essie, as he is universally known to his friends, colleagues, and the international community, took on the editorship of ER in 1987. At that point, as (very) senior members of the profession will remember, the journal had a paperback cover, no formal …

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Reduced Forms And Weak Instrumentation, Peter C. B. Phillips Mar 2017

Reduced Forms And Weak Instrumentation, Peter C. B. Phillips

Research Collection School Of Economics

This paper develops exact finite sample and asymptotic distributions for a class of reduced form estimators and predictors, allowing for the presence of unidentified or weakly identified structural equations. Weak instrument asymptotic theory is developed directly from finite sample results, unifying earlier findings and showing the usefulness of structural information in making predictions from reduced form systems in applications. Asymptotic results are reported for predictions from models with many weak instruments. Of particular interest is the finding that, in unidentified and weakly identified structural models, partially restricted reduced form predictors have considerably smaller forecast mean square errors than unrestricted reduced …

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The Selection And Causal Effects Of Work Incentives On Labor Productivity: Evidence From A Two Stage Randomized Controlled Trial In Malawi, Hyuncheol Bryant Kim, Seonghoon Kim, Thomas T. Kim Mar 2017

The Selection And Causal Effects Of Work Incentives On Labor Productivity: Evidence From A Two Stage Randomized Controlled Trial In Malawi, Hyuncheol Bryant Kim, Seonghoon Kim, Thomas T. Kim

Research Collection School Of Economics

Incentives are essential to promote labor productivity. We implemented a two-stage field experiment to measure effects of career and wage incentives on productivity through self-selection and causal effect channels. First, workers were hired with either career or wage incentives. After employment, a random half of workers with career incentives received wage incentives and a random half of workers with wage incentives received career incentives. We find that career incentives attract higher-performing workers than wage incentives but do not increase productivity for existing workers. Instead, wage incentives increase productivity for existing workers. Observable characteristics are limited in explaining the selection effect.

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Vu Khoan [Vietnam, Deputy Prime Minister], Vu Khoan Feb 2017

Vu Khoan [Vietnam, Deputy Prime Minister], Vu Khoan

Digital Narratives of Asia

Vu Khoan, former Deputy Prime Minister for Vietnam, shares with DNA how he joined the foreign services, and then took charge of economic reform, where every assignment was a challenge that caused him to grow. He led Vietnam from political isolation to normalizing her international relations, especially with ASEAN countries. Interview and transcript in English and Vietnamese.

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Communicating Leadership, Singapore Management University Feb 2017

Communicating Leadership, Singapore Management University

Perspectives@SMU

Organisations should invest on its leaders’ communication skills to manage ‘organisational alignment’ – what it and its employees communicate

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Isetan: Adapting To The New Global Retail Landscape, Singapore Management University Feb 2017

Isetan: Adapting To The New Global Retail Landscape, Singapore Management University

Perspectives@SMU

Department stores need to rethink their traditional business model and deliver value to shoppers, and it must be done with speed and imagination

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Decoding Chinese Foreign Policy, Singapore Management University Feb 2017

Decoding Chinese Foreign Policy, Singapore Management University

Perspectives@SMU

States need to understand Beijing’s practice of ‘false dilemmas’ and its revanchist narrative, and stand firm without provoking China unnecessarily

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Sorry Guys, But Women Make Better Investors Than Men, Singapore Management University Feb 2017

Sorry Guys, But Women Make Better Investors Than Men, Singapore Management University

Perspectives@SMU

New research confirms a superior performance by female traders. Women have had a pretty bad reputation in global financial markets. As investors, the perception is that they joined the game too late, they saved too little and they invested too conservatively.

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Recharge On The Go For The Busy Bee, Singapore Management University Feb 2017

Recharge On The Go For The Busy Bee, Singapore Management University

Perspectives@SMU

Human interactions can be energising and bring vitality to employees

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Leveraging On Data Visualisation And Analytics For Assessment And Innovation, Salihin Mohammed Ali Feb 2017

Leveraging On Data Visualisation And Analytics For Assessment And Innovation, Salihin Mohammed Ali

Research Collection Library

No abstract provided.

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Leveraging On Data Visualisation & Analytics For Assessment & Innovation, Salihin Mohammed Ali Feb 2017

Leveraging On Data Visualisation & Analytics For Assessment & Innovation, Salihin Mohammed Ali

Research Collection Library

Singapore Management University (SMU) Libraries embarked on its ‘Culture of Assessment’ journey in 2013, geared towards demonstrating fiscal accountability and driving a higher degree of stakeholder engagement. With more than 80% of library staff trained in the use of Lean Six Sigma for business process improvements, it was only natural that the library started putting in place procedures and systems to continuously assess and improve services. For effective decision making, the challenge lies in the normalization, consolidation and visualization of data from the varied library services into a single coherent platform that could be used for making decisions that are …

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Modeling Adoption Dynamics In Social Networks, Minh Duc Luu Feb 2017

Modeling Adoption Dynamics In Social Networks, Minh Duc Luu

Dissertations and Theses Collection

This dissertation studies the modeling of user-item adoption dynamics where an item can be an innovation, a piece of contagious information or a product. By “adoption dynamics” we refer to the process of users making decision choices to adopt items based on a variety of user and item factors. In the context of social networks, “adoption dynamics” is closely related to “item diffusion”. When a user in a social network adopts an item, she may influence her network neighbors to adopt the item. Those neighbors of her who adopt the item then continue to trigger more adoptions. As this progress …

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Benefits And Burdens: The Role Of Trait Gratitude In Positive And Negative Exchanges In Friendships, Ze Ling Nai Feb 2017

Benefits And Burdens: The Role Of Trait Gratitude In Positive And Negative Exchanges In Friendships, Ze Ling Nai

Dissertations and Theses Collection

Objective: This study examined the effects of trait gratitude on relationship satisfaction amongst friends through two potential mechanisms – perceived fulfillment of positive expectations and perceived burden of negative exchanges. The study also aimed to examine whether grateful people over-perceive the benefits received from friends. Method: 101 pairs of same-sex friends were recruited from Singapore Management University to take part in a dyad study. Participants were asked to rate their relationship expectations, and the benefits received and performed for their partner. Participants were also asked to rate their tolerance, and the burdens caused by and imposed on their partner. Results: …

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Collective Multiagent Sequential Decision Making Under Uncertainty, Duc Thien Nguyen, Akshat Kumar, Hoong Chuin Lau Feb 2017

Collective Multiagent Sequential Decision Making Under Uncertainty, Duc Thien Nguyen, Akshat Kumar, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Multiagent sequential decision making has seen rapid progress with formal models such as decentralized MDPs and POMDPs. However, scalability to large multiagent systems and applicability to real world problems remain limited. To address these challenges, we study multiagent planning problems where the collective behavior of a population of agents affects the joint-reward and environment dynamics. Our work exploits recent advances in graphical models for modeling and inference with a population of individuals such as collective graphical models and the notion of finite partial exchangeability in lifted inference. We develop a collective decentralized MDP model where policies can be computed based …

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Discovering Burst Patterns Of Burst Topic In Twitter, Guozhong Dong, Wu Yang, Feida Zhu, Wei Wang Feb 2017

Discovering Burst Patterns Of Burst Topic In Twitter, Guozhong Dong, Wu Yang, Feida Zhu, Wei Wang

Research Collection School Of Computing and Information Systems

Twitter has become one of largest social networks for users to broadcast burst topics. There have been many studies on how to detect burst topics. However, mining burst patterns in burst topics has not been solved by the existing works. In this paper, we investigate the problem of mining burst patterns of burst topic in Twitter. A burst topic user graph model is proposed, which can represent the topology structure of burst topic propagation across a large number of Twitter users. Based on the model, hierarchical clustering is applied to cluster burst topics and reveal burst patterns from the macro …

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Harnessing Twitter To Support Serendipitous Learning Of Developers, Abhabhisheksh Sharma, Yuan Tian, Agus Sulistya, David Lo, Aiko Yamashita Feb 2017

Harnessing Twitter To Support Serendipitous Learning Of Developers, Abhabhisheksh Sharma, Yuan Tian, Agus Sulistya, David Lo, Aiko Yamashita

Research Collection School Of Computing and Information Systems

Developers often rely on various online resources, such as blogs, to keep themselves up-to-date with the fast pace at which software technologies are evolving. Singer et al. found that developers tend to use channels such as Twitter to keep themselves updated and support learning, often in an undirected or serendipitous way, coming across things that they may not apply presently, but which should be helpful in supporting their developer activities in future. However, identifying relevant and useful articles among the millions of pieces of information shared on Twitter is a non-trivial task. In this work to support serendipitous discovery of …

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Dynamic Repositioning To Reduce Lost Demand In Bike Sharing Systems, Supriyo Ghosh, Pradeep Varakantham, Yossiri Adulyasak, Patrick Jaillet Feb 2017

Dynamic Repositioning To Reduce Lost Demand In Bike Sharing Systems, Supriyo Ghosh, Pradeep Varakantham, Yossiri Adulyasak, Patrick Jaillet

Research Collection School Of Computing and Information Systems

Bike Sharing Systems (BSSs) are widely adopted in major cities of the world due to concerns associated with extensive private vehicle usage, namely, increased carbon emissions, traffic congestion and usage of nonrenewable resources. In a BSS, base stations are strategically placed throughout a city and each station is stocked with a pre-determined number of bikes at the beginning of the day. Customers hire the bikes from one station and return them at another station. Due to unpredictable movements of customers hiring bikes, there is either congestion (more than required) or starvation (fewer than required) of bikes at base stations. Existing …

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The K-Sf-42: A New Short Form Of The Arizona Life History Battery, Aurelio José Figueredo, Rafael Antonio Garcia, J Michael Menke, Norman P. Li Feb 2017

The K-Sf-42: A New Short Form Of The Arizona Life History Battery, Aurelio José Figueredo, Rafael Antonio Garcia, J Michael Menke, Norman P. Li

Research Collection School of Social Sciences

The purpose of the present article is to propose an alternative short form for the 199-item Arizona Life History Battery (ALHB), which we are calling the K-SF-42, as it contains 42 items as compared with the 20 items of the Mini-K, the short form that has been in greatest use for the past decade. These 42 items were selected from the ALHB, unlike those of the Mini-K, making direct comparisons of the relative psychometric performance of the two alternative short forms a valid and instructive exercise. A series of secondary data analyses were performed upon a recently completed five-nation cross- …

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Labour Protection For The Vulnerable: An Evaluation Of The Salary And Injury Claims System For Migrant Workers In Singapore, Tamera Fillinger, Nicholas Harrigan, Stephanie Chok, Amirah Amirrudin, Patricia Meyer, Meera Rajah, Debbie Fordyce Feb 2017

Labour Protection For The Vulnerable: An Evaluation Of The Salary And Injury Claims System For Migrant Workers In Singapore, Tamera Fillinger, Nicholas Harrigan, Stephanie Chok, Amirah Amirrudin, Patricia Meyer, Meera Rajah, Debbie Fordyce

Research Collection School of Social Sciences

This research seeks to review and analyze the protections afforded to migrant workers in Singapore who bring salary and injury claims to the Ministry of Manpower for resolution. Our focus is male Work Permit holders from Bangladesh, China, and India who make up the majority of the workforce in Singapore’s construction and marine sectors. Work Permit holders are the lowest wage category of foreign workers and comprise nearly a third of the overall workforce. While these workers play an important role in building the nation, they face workplace issues that many would not associate with a modern economy.

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Going Green In Thailand: Upgrading In Global Organic Value Chains, John A. Donaldson, Joel D. Moore Feb 2017

Going Green In Thailand: Upgrading In Global Organic Value Chains, John A. Donaldson, Joel D. Moore

Research Collection School of Social Sciences

Under what conditions are small-scale farmers able to overcome significant barriers to shift into producing organic rice? In a global context, the answers are vital. Rice – as with other staple goods – in many areas of the developing world has become dependent on chemical fertilizers, causing rapid deterioration in the natural environment. Rice grown with chemical fertilizers is less safe to consume. While the global environmental imperative justifies conversion (or in most cases, reconversion) to the production of organic (or at least safer) rice, the local impact of the overuse of chemical fertilizers is just as crucial. Chemical fertilizers …

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Industry-University Partnership Through Experiential Project-Based Learning: A Singapore Case Study, Gary Pan, Gan Hup Tan, Yvonne Tan Feb 2017

Industry-University Partnership Through Experiential Project-Based Learning: A Singapore Case Study, Gary Pan, Gan Hup Tan, Yvonne Tan

Research Collection School Of Accountancy

A radical approach to preparing university students with future work skills, by combining academic with experiential learning through real projects faced by client partners. Learn how a university can create opportunities for collaborative learning and a tripartite learning relationship for academia, students and industry. Outcomes and impact of the case Post-module feedback surveys conducted over AY2015/16 showed that over 80% of the students who took an SMU-X module reported enhanced problem-solving, analytical, reasoning and communication skills, all of which were skills highly valued by employers. These results also dovetailed with SMU-X’s learning outcomes. More than 85% felt that the SMU-X …

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What Case Studies Can Teach Us In International Public Relations, Gregor Halff Feb 2017

What Case Studies Can Teach Us In International Public Relations, Gregor Halff

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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International Volatility Risk And Chinese Stock Return Predictability, Jian Chen, Fuwei Jiang, Yangshu Liu, Jun Tu Feb 2017

International Volatility Risk And Chinese Stock Return Predictability, Jian Chen, Fuwei Jiang, Yangshu Liu, Jun Tu

Research Collection Lee Kong Chian School Of Business

This paper investigates the predictive ability of international volatility risks for the daily Chinese stock market returns. We employ the innovations in implied volatility indexes of seven major international markets as our international volatility risk proxies. We find that international volatility risks are negatively associated with contemporaneous Chinese daily overnight stock returns, while positively forecast next-day Chinese daytime stock returns. The US volatility risk (ΔVIX) is particularly powerful in forecasting Chinese stock returns, and plays a dominant role relative to the other six international volatility measures. ΔVIX's forecasting power remains strong after controlling for Chinese domestic volatility and is robust …

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Drones, Ai And Getting Undergrads Ready For Great Disruption, Tan K. B. Eugene, Thomas Menkhoff, Siew Ning Kan Feb 2017

Drones, Ai And Getting Undergrads Ready For Great Disruption, Tan K. B. Eugene, Thomas Menkhoff, Siew Ning Kan

Research Collection Yong Pung How School Of Law

In a joint commentary, SMU Academic Director (MSc in Innovation) and Professor of Organisational Behaviour and Human Resources (Education) Thomas Menkhoff; SMU Associate Professor of Law Eugene Tan; and SMU LKCSB Adjunct Faculty Kan Siew Ning, highlighted that the University recently launched an inter-disciplinary course on emerging technology, focusing on unmanned aerial vehicles (UAV or drones), robotics, and artificial intelligence (AI). One key learning outcome is to enable students to appreciate, in a multi-disciplinary setting, the huge business potential of emerging technology in diverse areas - such as logistics, supply chain management, transportation, search and rescue, military, and scientific studies. …

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More Public Education Needed On Changes To Ep System, Tan K. B. Eugene Feb 2017

More Public Education Needed On Changes To Ep System, Tan K. B. Eugene

Research Collection Yong Pung How School Of Law

The office of Singapore’s Elected President is often misunderstood. Although it has been part of our system of institutional checks and balances since 1991, a popular misconception is that the President is a centre of political power unto itself.

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Multinational Firms And Cash Holdings: Evidence From China, Weijun Wu, Yang Yang, Sili Zhou Feb 2017

Multinational Firms And Cash Holdings: Evidence From China, Weijun Wu, Yang Yang, Sili Zhou

Research Collection Lee Kong Chian School Of Business

To adapt to globalization, Chinese multinational firms have more exploitation of cash. This paper shows that Chinese multinational corporations (MNCs) do not hold significantly more cash relative to domestic firms unless these multinationals heavily relay on the foreign sales. In addition, the multinationals of non-State-Owned Enterprises (Non-SOEs) exhibit the insignificant difference in cash holdings for non-multinationals. We also find that Chinese MNCs invest more but are less profitable, especially in non-SOE subsample. Overall, we conclude that the need of cash liquidity of multinational corporations in China is different from those in U.S.

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