Social and Behavioral Sciences Commons^™

A Smoothed Q-Learning Algorithm For Estimating Optimal Dynamic Treatment Regime, Yanqin Fan, Ming He, Liangjun Su, Xiao-Hua Zhou

Research Collection School Of Economics

In this paper we propose a smoothed Q-learning algorithm for estimating optimal dynamic treatment regimes. In contrast to the Q-learning algorithm in which non-regular inference is involved, we show that under assumptions adopted in this paper, the proposed smoothed Q-learning estimator is asymptotically normally distributed even when the Q-learning estimator is not and its asymptotic variance can be consistently estimated. As a result, inference based on the smoothed Q-learning estimator is standard. We derive the optimal smoothing parameter and propose a data-driven method for estimating it. The finite sample properties of the smoothed Q-learning estimator are studied and compared with …

Early Birds, Short Tenures, And The Double Squeeze: How Gender And Age Intersect With Parliamentary Representation, Devin K. Joshi, Malliga Och

Research Collection School of Social Sciences

The gender and age composition of a parliament impacts who is descriptively represented and marginalized and what types of policy ideas and solutions are brought forward or excluded. While important for both descriptive and substantive representation, scholarship on the intersection of gender and age in parliaments has thus far been limited. To broaden our understanding, we conducted a large-scale cross-sectional analysis of the gender and ages of over 20,000 representatives from 78 national assemblies. We identified four types of gender-age patterns depending on whether women enter legislatures younger than men (“early birds”) or have served in parliament for a shorter …

There And Back Again: What The Cold War For Southeast Asia Can Teach Us About Sino-Us Competition In The Region Today, Wen-Qing Ngoei

Research Collection School of Social Sciences

Expert commentary today typically focuses on the agendas and actions of the two big powers, the United States and China, which misses the bigger picture. During the Cold War, leaders of ASEAN (Association of Southeast Asian Nations) played a critical role in containing Chinese influence, shaping the terms of Sino-U.S. competition and rapprochement, and deepening the U.S. presence in Southeast Asia. The legacy of ASEAN’s foreign relations during and since the Cold War militates against the popular notion that Chinese hegemony in Asia is inevitable.

Commoning Mobility: Towards A New Politics Of Mobility Transitions, Anna Nikolaeva, Peter Adey, Tim Cresswell, Jane Yeonjae Lee, Andre Nóvoa, Cristina Temenos

Research Collection School of Social Sciences

Scholars have argued that transitions to more sustainable and just mobilities require moving beyond technocentrism to rethink the very meaning of mobility in cities, communities, and societies. This paper demonstrates that such rethinking is inherently political. In particular, we focus on recent theorisations of commoning practices that have gained traction in geographic literatures. Drawing on our global comparative research of low‐carbon mobility transitions, we argue that critical mobilities scholars can rethink and expand the understanding of mobility through engagement with commons–enclosure thinking. We present a new concept, “commoning mobility,” a theorisation that both envisions and shapes practices that develop fairer …

What An Election Poster Can Tell Us About Thai Election Campaigns, Jacob I. Ricks

Research Collection School of Social Sciences

In the runup to Thailand’s 2019 national elections, the country has been awash with election posters. This simple form of campaign communication remains a staple of Thai campaigns, despite the advent of various Internet platforms and communication devices. But although election posters are often discussed by journalists and the general public, they are rarely analyzed in academic research. This is surprising and unfortunate, since their wealth of textual and visual information can tell us a lot about campaigns.

Buscope: Fusing Individual & Aggregated Mobility Behavior For" Live" Smart City Services, Lakmal Meegahapola, Thivya Kandappu, Kasthuri Jayarajah, Leman Akoglu, Shili Xiang, Archan Misra

Research Collection School Of Computing and Information Systems

While analysis of urban commuting data has a long and demonstrated history of providing useful insights into human mobility behavior, such analysis has been performed largely in offline fashion and to aid medium-to-long term urban planning. In this work, we demonstrate the power of applying predictive analytics on real-time mobility data, specifically the smart-card generated trip data of millions of public bus commuters in Singapore, to create two novel and “live” smart city services. The key analytical novelty in our work lies in combining two aspects of urban mobility: (a) conformity: which reflects the predictability in the aggregated flow of …

Political Discussions In Homogeneous And Cross-Cutting Communication Spaces, Qatar Computing Research Institute, Haewoon Kwak, Universität Bamberg

Research Collection School Of Computing and Information Systems

Online platforms, such as Facebook, Twitter, and Reddit, provide users with a rich set of features for sharing and consuming political information, expressing political opinions, and exchanging potentially contrary political views. In such activities, two types of communication spaces naturally emerge: those dominated by exchanges between politically homogeneous users and those that allow and encourage crosscutting exchanges in politically heterogeneous groups. While research on political talk in online environments abounds, we know surprisingly little about the potentially varying nature of discussions in politically homogeneous spaces as compared to cross-cutting communication spaces. To fill this gap, we use Reddit to explore …

View, Like, Comment, Post: Analyzing User Engagement By Topic At 4 Levels Across 5 Social Media Platforms For 53 News Organizations, Kholoud K. Aldous, Jisun An, Bernard J. Jansen

Research Collection School Of Computing and Information Systems

We evaluate the effects of the topics of social media posts on audiences across five social media platforms (i.e., Facebook, Instagram, Twitter, YouTube, and Reddit) at four levels of user engagement. We collected 3,163,373 social posts from 53 news organizations across five platforms during an 8month period. We analyzed the differences in news organization platform strategies by focusing on topic variations by organization and the corresponding effect on user engagement at four levels. Findings show that topic distribution varies by platform, although there are some topics that are popular across most platforms. User engagement levels vary both by topics and …

Entrans: Leveraging Kinetic Energy Harvesting Signal For Transportation Mode Detection, Guohao Lan, Weitao Xu, Dong Ma, Sara Khalifa, Mahbub Hassan, Wen Hu

Research Collection School Of Computing and Information Systems

Monitoring the daily transportation modes of an individual provides useful information in many application domains, such as urban design, real-time journey recommendation, as well as providing location-based services. In existing systems, accelerometer and GPS are the dominantly used signal sources for transportation context monitoring which drain out the limited battery life of the wearable devices very quickly. To resolve the high energy consumption issue, in this paper, we present EnTrans, which enables transportation mode detection by using only the kinetic energy harvester as an energy-efficient signal source. The proposed idea is based on the intuition that the vibrations experienced by …

Is Liberal Democracy In Decline?, Singapore Management University

Perspectives@SMU

The apparent decline of Western liberal democracy affords nations, especially those in ASEAN, the chance to forge a path without siding with a rising China or a stuttering America

Keep Calm And Collaborate For Impact, Gulcin Cribb

Research Collection Library

No abstract provided.

Small Data, Small Steps: Lessons From Assessing The Investment Studio, Jiaxin Low

Research Collection Library

Singapore Management University’s (SMU) Li Ka Shing Library was renovated in 2014. During the renovation, the Investment Studio was created within the library to house high-end financial databases such as Bloomberg and Thomson Reuters (now Refinitiv). Usage of the space was assessed using quantitative and qualitative data, comparing the first academic terms across two academic years, 2017 and 2018. The data provided evidence to support anecdotal evidence and library staff’s knowledge and observation. The assessment resulted recommendations for further action. It also provided opportunity to engage with users and stakeholders of this unique space.

The Modern Library And Its Roles In Publishing And Research Support: An Example From Singapore Management University, Pin Pin Yeo

Research Collection Library

Modern libraries face challenges in playing roles and how they can show value in the research cycle of their institution. The presentation will show how the Singapore Management University (SMU) Libraries play a part in publishing and research support services. The Library is the owner of the SMU research publications system and it showcases SMU publications and also provides the full text where possible in the SMU repository called InK. Some examples of how the information is used and what faculty think about having their publications in InK will be shared. The Library is also involved in assessment by providing …

Infiltrating The Business School … How We Lounged Our Way!, Sumita Govindan, Redzuan Abdullah, Rajendra Munoo

Research Collection Library

The Business Librarians Team at SMU Libraries tested out embedded librarianship at the School of Business. The objectives were to: a. Bring closer support for faculty, especially in research productivity, teaching and information needs to where they are and when they need help. b. Be available for face-to-face consultation with faculty, staff and postgraduate students. c. Build a closer working relationship with the LKCSB community.

The Quest For Replicability: A Review Of Research Data Policies In Economics Journals, Melody Chin, Danping Dong

Research Collection Library

Research data openness serves as best practice and plays a critical role in facilitating the replicability and reproducibility of published research. In the field of Economics, journal data policies have been instrumental in encouraging the sharing of data and code, especially when the requirements are strict and enforceable. It is also evident that in recent years, increasing number of journals now has some form of research data policy in place. This paper attempts to analyze the data policies of the 74 general and field-specific Economics journals listed in the ranking database as part of the Tilburg University Top 100 Worldwide …

Women In Innovation: Challenges And Opportunities, Mengzi Jin

Dissertations and Theses Collection (Open Access)

Innovation and creativity are the engines of social and economic progress. What roles do women play in innovation? Emerging evidence reveals that fewer women than men enter and succeed in innovation-related fields. Tackling gender inequality at work has always been one of the grand societal challenges, however little is known about gender issues specific to innovation achievements. This dissertation attempts to explain gender gaps in the innovation and creativity context. Innovation typically involves generating multiple novel and useful ideas, selecting the most promising one for implementation, and persistently championing the idea through implementation. I theorize and unpack the gender effect …

Shared Leadership And Team Motivation: An Exploratory Study, Yufeng Chi

Dissertations and Theses Collection (Open Access)

Despite the importance of team innovation for organizations, the conditions that foster team innovation are still not well understood. In this dissertation, I propose a theoretical model in which the impact of shared leadership on team innovation is mediated by information sharing and team potency. I utilize a two-wave longitudinal, multi-method and multi-source research design to examine the research hypotheses. I argue that shared leadership not only improves a team’s information sharing and team potency, but also generates cognitive and motivational advantages that are conducive to innovation. In addition, I show that the relationship between shared leadership and team innovation …

Distilling Managerial Insights And Lessons From Ai Projects At Singapore's Changi Airport (Part 2), Steve Lee, Steven M. Miller

Asian Management Insights

Since 2017, Changi Airport group (CAG) has initiated a host of pilot projects that use connective and intelligent technologies to enable its move towards digital transformation and SMART Airport Vision. This has resulted in a first wave of deployment of AI and Machine Learning-enabled applications across various functions that can better sense, analyse, predict, and interact with people.

Ai Gets Real At Singapore's Changi Airport (Part 1), Steve Lee, Steven M. Miller

Asian Management Insights

Ranked as the best airport for seven consecutive years, Singapore’s Changi Airport is lauded the world over for the efficient, safe, pleasurable and seamless service it offers the millions of passengers that pass through its facilities annually. Much of Changi Airport’s success can be attributed to the organisation’s customer-oriented business focus and deeply embedded culture of service excellence, combined with a host of advanced technologies operating invisibly in the background. The framework for this technology enablement is Changi Airport Group’s (CAG’s) SMART Airport Vision—an enterprise-wide approach to connective technologies that leverages sensors, data fusion, data analytics, and artificial intelligence (AI), …

A Better Economy By "Design", Lawrence Chong

Asian Management Insights

The air was still, and I was going nowhere with the session until I asked the participants about their kids instead of talking more about the bank. The conversations soon turned chirpy as the mothers in the group spoke over one another, sharing their hearts out about their children and their hopes for them. I felt I had unlocked something new, even though this should have been obvious as this is a very family-oriented country. This experience was part of our transformation project for a Southeast Asian bank that would reshape its digital, brand and customer engagement strategy through a …

Three Essays On Information Diffusion And Market Friction, Li Guo

Dissertations and Theses Collection (Open Access)

How markets impound information into asset prices is one of the most important concerns of financial economics. Due to behavioural bias and transaction friction, information could be mispriced in the real world, thus driving market anomalies and return predictability of behavioural factors. My dissertation contributes to the literature by investigating how information can be quantified, acquired, disseminated and priced in the financial market with the existence of market frictions.

In Chapter 2, we propose an efficient method based on machine learning and textual analysis to quantify cross industry news and shed light on how news travels across different industries. The …

Research On Extreme Poverty Governance Based On Social Network Analysis, Wenyong Lei

Dissertations and Theses Collection (Open Access)

In this dissertation, the author goes inside some of China's most remote and poorest villages and tries to reveal the determinants, correlates and strategies to address the gap of existing poverty governance system and the complexity and diversity of poor population. He offers in-depth insights into what the poor people think about poverty with two major indicators, identifies evidence on the feasibility of duel-network embedding strategy to reduce poverty, and explains how diverse groups hit by extreme poverty could develop entrepreneurship relationship with diversified market and available social economic resources. Drawing on examples that take place in Xide County, a …

To Thank Or Not To Thank: Understanding The Differences Between Gratitude And Indebtedness After Receiving A Favor Through Emotion Appraisals, Motivations And Behaviors, Ze Ling Nai

Dissertations and Theses Collection (Open Access)

Objective: This study aimed to distinguish between daily experiences of gratitude and indebtedness through three stages - emotional appraisals, motivations to reciprocate and behavioural tendencies. Through these three stages, I aimed to gain a better insight into the emotional process involved before and after receiving favours. Method: 196 participants were recruited from Singapore Management University to take part in a 14-day diary study. Every two days, participants were asked to report a favour they received over the past two days and evaluate the favour based on their appraisals of the experience. They were also asked to report their motivation to …

Regulatory Focus And Female Leadership Development: How Male Leaders Modify The Self-Regulating Focus Of Mid-Career Female Followers To Motivate Their Pursuit Of Future Career Progress, Vinika Devasar Rao

Dissertations and Theses Collection (Open Access)

Inadequate representation of women in the upper corporate echelons remains a worldwide problem, in spite of seemingly concerted efforts by organizations to counter it. While progress has been made in terms of entry level percentages of women, the numbers continue to fall with growth up the corporate ladder. Asia is no exception to this phenomenon. Analysis of literature and secondary data reveals that academic writing on the subject is generally declining but practitioner literature abounds with reports on the still low number of women in leadership positions.

This research study uses a discovery-oriented grounded theory approach based on qualitative analysis …

Three Essays On Nonstationary Time-Series Analysis And Network Dynamics, Yubo Tao

Dissertations and Theses Collection (Open Access)

My dissertation consists of three essays which contribute new theoretical results to nonstationary time-series analysis and network dynamics.

Chapter 2 examines the limit properties of information criteria (such as AIC, BIC, HQIC) for distinguishing between the unit root model and the various kinds of explosive models. The explosive models include the local-to-unit-root model, the mildly explosive model and the regular explosive model. Initial conditions with different orders of magnitude are considered. Both the OLS estimator and the indirect inference estimator are studied. It is found that BIC and HQIC, but not AIC, consistently select the unit root model when data …

Building Safe, Secure And Sustainable Futures In The South China Sea, Michelle Mei Ling Lim

Research Collection Yong Pung How School Of Law

This essay argues that by framing security in the South China Sea through the lens of territorial claims and power relations the bigger picture of a safe, secure and sustainable South China Sea is neglected. The essay reflects on a photograph from my childhood on the shores of the South China Sea. In the photograph, I have a little red bucket in my hands and a wide grin on my face as I prepare to build a sandcastle. In the intervention, I recall how it feels to be truly secure. By returning to the joys of childhood experienced on the …

Public Cleanliness Satisfaction Survey [2018], Paulin Straughan, Mathews Mathew

Research Collection School of Social Sciences

The Singapore Management University undertook the second wave of the Public Cleanliness Satisfaction Survey (PCSS) with over 2000 Singapore resident respondents.

The 2018 wave of the PCSS continued to reflect the overall satisfaction with public cleanliness in Singapore. There was a slight increase in the proportion of Singaporeans satisfied with the overall cleanliness of public areas which they had recently used (82% in 2017 vs. 84% in 2018).

Significantly more Singaporeans are satisfied with the cleanliness of spaces after public events (63% in 2017 vs. 74% in 2018).

Satisfaction with the cleanliness of food outlets is still the lowest among …

Being Sensitive To Positives Has Its Negatives: An Approach/Avoidance Perspective On Reactivity To Ostracism, Ferris D. Lance, Shereen Fatimah, Ming Yan, Lindie H. Liang, Huiwen Lian, Douglas J. Brown

Research Collection Lee Kong Chian School Of Business

Workplace mistreatment is typically conceptualized as being exposed to a negative stimulus – for example, a threat, verbal abuse, or other forms of harassment. Consequently, we expect workplace mistreatment will have the greatest effect on individuals who are sensitive to the presence and absence of negative stimuli – or those with a strong avoidance temperament. Although this may be the rule for most mistreatment constructs, we argue that ostracism may be the exception. Using an approach/avoidance framework to highlight unique elements of ostracism, we build on the definition of ostracism as being the absence of an expected positive stimulus (i.e., …

Constructed Response Formats And Their Effects On Minority-Majority Differences And Validity, Filip Lievens, Paul R. Sackett, Jeffrey Dahlke, Janneke Oostrom, Britt De Soete

Research Collection Lee Kong Chian School Of Business

The inflow of immigrants challenges organizations to consider alternative selection procedures that reduce potential minority (immigrants)-majority (natives) differences, while maintaining valid predictions of performance. To deal with this challenge, this paper proposes response format as a practically and theoretically relevant factor for situational judgment tests (SJTs). We examine a range of response format categories (from traditional multiple-choice formats to more innovative constructed response formats) and conceptually link these response formats to mechanisms underlying minority-majority differences. Two field experiments are conducted with SJTs. Study 1 (274 job seekers) contrasts minority-majority differences in scores on a multiple-choice versus a written constructed response …

Humility Breeds Authenticity: How Authentic Leader Humility Shapes Follower Vulnerability And Felt Authenticity, Burak Oc, Michael A. Daniels, James M. Diefendorff, Michael Ramsay Bashshur, Gary John Greguras

Research Collection Lee Kong Chian School Of Business

Integrating existing work that considers the self through an interpersonal lens with theories pertaining to leader humility and authenticity, we develop a moderated mediation model that theorizes how and under what circumstances leader humility relates to follower felt authenticity. We argue that followers feel less vulnerable when their leaders express humility and further that this relation becomes weaker as the authenticity of leader humility decreases. We also theorize that follower vulnerability is the mechanism explaining the interactive effect of leader humility and its authenticity on follower felt authenticity at work. Our theoretical model was supported across four studies employing both …