Social and Behavioral Sciences Commons^™

Improving Estimation Efficiency Via Regression-Adjustment In Covariate-Adaptive Randomizations With Imperfect Compliance, Liang Jiang, Oliver B. Linton, Haihan Tang, Yichong Zhang

Research Collection School Of Economics

We study how to improve efficiency via regression adjustments with additional covariates under covariate-adaptive randomizations (CARs) when subject compliance is imperfect. We first establish the semiparametric efficiency bound for the local average treatment effect (LATE) under CARs. Second, we develop a general regression-adjusted LATE estimator which allows for parametric, nonparametric, and regularized adjustments. Even when the adjustments are misspecified, our proposed estimator is still consistent and asymptotically normal, and their inference method still achieves the exact asymptotic size under the null. When the adjustments are correctly specified, our estimator achieves the semiparametric efficiency bound. Third, we derive the optimal linear …

A Research On The Innovative Performance Of Clustering Enterprises In Industrial Parks: Evidence From Shenzhen, China, Jiangong Bai

Dissertations and Theses Collection (Open Access)

How about the innovation performance of enterprises clustered in the industrial parks? This is the core question of this study. Based on the thinking and evolution of the question, this study will focus on the impact of industrial agglomeration on enterprise innovation performance with enterprise relations and informal institution as intermediate variables.

In this study, Shenzhen, as a city of innovation, is selected as the research area where sample parks and enterprises can be investigated to obtain data. This study constructs and measures the strength of informal institution and enterprise innovation performance through grounded theory and fuzzy matter-element method, evaluates …

The Industry Expertise Of Sell-Side Equity Analysts, Matthew Louis Dearth

Dissertations and Theses Collection (Open Access)

Institutional investors, the most important consumer of analyst research, consistently rank industry knowledge as the most important attribute of analysts. Despite this, little is known about how investors measure industry knowledge since analyst output which can be evaluated objectively is usually associated with firm-level outcomes such as earnings forecasts or price targets. Comprehensive data are recently available for analyst forecasts of key performance indicators (“KPIs”), firm-performance metrics specific to a particular industry. Whereas reactions to earnings forecasts and other firm-level outputs only inform us about analyst skill in firm-level predictions, stock-price reactions to forecast revisions of industryspecific KPIs can proxy …

Media And Peer Culture: Young People Sharing Norms And Collective Identities With And Through Media, Sun Sun Lim

Research Collection College of Integrative Studies

When young people interact, they absorb the peer culture that underpins and sustains their relationships with each other. Peer culture encompasses norms and conventions, shared interests and activities, and the unique modes of communication deployed in the afore-mentioned elements. The ways in which young people integrate their media consumption into their peer culture is the focus of this chapter. Specifically, it examines how young people incorporate media content into their peer interactions and appropriate a variety of communication platforms to socialize with their peers, thus generating distinctive traits, norms, practices, codes and shared identities that make up their unique peer …

Wages For Climate Stewardship?, Sayd Randle

Research Collection College of Integrative Studies

IN 1996, environmental historian Richard White published an essay with a title borrowed from a pissed-off bumper sticker: “Are You an Environmentalist or Do You Work for a Living?” White used the frictions between loggers and spotted owl advocates in the Pacific Northwest to show readers exactly how US-based environmentalism had come to be seen as orthogonal to productive labor. “Work,” he asserted, is in fact “where we should begin” when we talk about environmentalism. Set aside idealized images of natural spaces as best suited for leisure, he counseled. It’s only “[i]n taking responsibility for our own lives and work, …

The Effects Of Dangerous World Beliefs On Covid-19 Preventive Behaviors In Singapore: The Moderating Role Of Public Health Communication, Su Lin Yeo, Desiree Y. Phua, Ying-Yi Hong

Research Collection Lee Kong Chian School Of Business

This research purposes to examine the role of strategic communication, specifically the effectiveness of government's crisis communication mes-sages at the onset of COVID-19 pandemic in Singapore, on disease preven-tive behaviors. It employed a mixed method research approach by first carrying out a content analysis of 7128 news headlines on COVID-19 to confirm our presupposition that the media may be communicating mes-sages that the world order is being threatened. Informed by our findings that 90% of news reports were framed to suggest a dangerous world, we sur-veyed 453 respondents in the main study, and tested if people's beliefs in a dangerous …

Does A District Mandate Matter For The Behavior Of Politicians? An Analysis Of Roll-Call Votes And Parliamentary Speeches, Andreas Born, Aljoscha Janssen

Research Collection School Of Economics

In most democracies, members of parliament (MPs) are elected either through a party list or by a district. We use a discontinuity in the German electoral system to investigate the causal effect of a district election on an MP’s conformity with the party line. A district election does not affect roll-call voting behavior causally, possibly due to overall high adherence to party-line voting. Analyzing the parliamentary speeches of each MP allows us to overcome the high party-line discipline with regard to parliamentary voting. Using textual analysis and machine learning techniques, we create two measures of closeness of an MP’s speeches …

Jue Insight: Migration, Transportation Infrastructure, And The Spatial Transmission Of Covid-19 In China, Bingjing Li, Lin Ma

Research Collection School Of Economics

This paper evaluates the impacts of migration flows and transportation infrastructure on the spatial transmission of COVID-19 in China. Prefectures with larger bilateral migration flows and shorter travel distances with Hubei, the epicenter of the outbreak, experienced a wider spread of COVID-19. In addition, richer prefectures with higher incomes were better able to contain the virus at the early stages of community transmission. Using a spatial general equilibrium model, we show that around 28% of the infections outside Hubei province can be explained by the rapid development in transportation infrastructure and the liberalization of migration restrictions in the recent decade.

Rethinking The Role Of Employment Barriers In Active Labor Market Policy: Evidence From A Fixed Effects Analysis, Jian Qi Tan, Irene Y. H. Ng, Kong Weng Ho

Research Collection School Of Economics

Using a panel dataset from a five-wave survey of participants in Singapore’s Work Support Programme (WSP) from 2010 to 2016, we quantify the cumulative negative impact of facing multiple employment barriers and demonstrate the association between the individual stressors and labor market indicators. Using a fixed effects model to reduce the confounding effects of unobservables, we find that a one standard deviation increase in the number of employment barriers brings about a 2.7 to 3.5 percentage point increase in the probability of being unemployed and a 58 SGD to 78 SGD decrease in individual earnings.

Sustainable Strategies For Mass Rapid Transit Ppps, Sock Yong Phang, Bin Chye Tan

Research Collection School Of Economics

Mass rapid transit (MRT) PPPs have proliferated in the past two decades. This chapter provides a framework to categorise and understand alternative PPP designs. As MRT systems are inherently large, unprofitable and risky projects, PPP design is critical to project success and sustainability. We study the experiences of MRT PPPs in London, Hong Kong, Singapore and Beijing to understand factors underlying success and failure and to arrive at policy recommendations for PPPs. Policymakers need to have additional governance improvement and risk mitigation measures in place when tied supply chains are utilised. Hong Kong’s experience illustrates that ‘Rail plus Property’ strategy …

Are Simple Mechanisms Optimal When Agents Are Unsophisticated?, Jiangtao Li, Piotr Dworczak

Research Collection School Of Economics

We study the design of mechanisms involving agents that have limited strategic sophistication. We define a mechanism to be simple if—given the assumed level of strategic sophistication—agents can determine their optimal strategy. We examine whether it is optimal for the mechanism designer who faces strategically unsophisticated agents to offer a simple mechanism. We show that when the designer uses a mechanism that is not simple, while she loses the ability to predict play, she may nevertheless be better off no matter how agents resolve their strategic confusion

Mechanism Design By Observant And Informed Planners, Shurojit Chatterji, Arunava Sen

Research Collection School Of Economics

We study the mechanism design problem where the planner can observe ex-post the first-ranked alternatives or peaks of voter preferences. We contrast this with the design problem where the planner has ex-ante information regarding the peaks of voter preferences.

The (De)Territorialised Appeal Of International Schools In China: Forging Brands, Boundaries And Inter-Belonging In Segregated Urban Space, Lily Kong, Orlando Woods, Hong Zhu

Research Collection School of Social Sciences

This paper considers how the (de)territorialised appeal of international schools in China can reflect, enforce and expand pre-existing patterns of urban segregation. Whilst exploration of the effects of educational marketplaces on urban environments has become a focus of scholarly research, the recent expansion in the supply of, and demand for, international education has caused these effects to become more nuanced. As (de)territorialised entities, international schools can cause multiple forms of spatial and psycho-social distinction and (dis)association to become intertwined, the effects of which start from the school and radiate out from there. International schools can therefore cause segregation to become …

A Bubble Of Protection: Examining Dispositional Optimism As A Psychological Buffer Of The Deleterious Association Between Negative Work-Family Spillover And Psychological Health, Sean T. H. Lee, Bryan K. C. Choy, Jose C. Yong

Research Collection School of Social Sciences

Demands and stressors from work increasingly encroach upon people’s family lives in modern settings, resulting in poorer familial relationships and impaired psychological health. The current study proposed and examined dispositional optimism as a potential psychological buffer of the deleterious impact of negative work-to-family spillover (WFS) on psychological health. Based on a sample of employed midlife adults in the United States (N = 1,252) drawn from a large and nationally representative dataset, MIDUS 3, we found that dispositional optimism significantly moderated the relationship between negative WFS and subjective well-being, even after controlling for a variety of potential confounds. However, this moderation …

What Drives Companies To Do Good? A “Universal” Ordering Of Corporate Social Responsibility Motivation, Alwyn Lim, Shawn Pope

Research Collection School of Social Sciences

The classic question of why companies do corporate social responsibility (CSR) is central to much theoretical, regression-based, and experimental research. Guiding research into this question is a tripartite schema of normative, instrumental, and political CSR motivations that has become increasingly established in the CSR literature. This paper challenges the schema’s status as a typology of equally plausible alternatives through an integration and analysis of a worldwide literature of 120 existing academic surveys on CSR motivation. Rather, the paper reformulates the schema into a surveyed ordering of CSR motivations that might be called “universal” in having remarkable stability across time periods, …

Subjective Social Class And Life Satisfaction: Role Of Class Consistency And Identity Uncertainty, Bek Wuay Tang, Jacinth Jia Xin Tan

Research Collection School of Social Sciences

Drawing on a recent perspective that inconsistent class identities can negatively impact psychological outcomes, the current research explored if the relative benefit of higher subjective social class for life satisfaction would differ depending on whether it is consistent with one’s objective social class. In Study 1, across two independent samples from Singapore (n = 1,045) and the United States (n = 492), higher subjective social class predicted higher life satisfaction more strongly among those high in objective social class, but less strongly among those low in objective social class. In Study 2, these patterns were replicated in another large U.S. …

Producing Industrial Pigs In Southwestern China: The Rise Of Contract Farming As A Coevolutionary Process, Forrest Qian Zhang, Hongping Zeng

Research Collection School of Social Sciences

The literature on contract farming (CF) has to date focused on how outside capital uses CF to vertically integrate non-capitalist producers into agro-industrial value chains. We argue that in places where multiple dynamics of capitalist growth co-exist, CF relationships can also emerge between different types of capitalist producers that are already in capitalist production using other organizational forms. In this situation, the well-studied drivers that fuel the spread of CF become less consequential; the emergence of CF is instead more contingent on the complex interactions between producers and the specific conditions and events in the local environment. We conceptualize the …

The Associations Between Poor Antibiotic And Antimicrobial Resistance Knowledge And Inappropriate Antibiotic Use In The General Population Are Modified By Age, Huiling Guo, Zoe Jane-Lara Hildon, David Chien Boon Lye, Paulin Tay Straughan, Angela Chow

Research Collection School of Social Sciences

Objectives: Understanding factors influencing inappropriate antibiotic use can guide the design of interventions to improve antibiotic practices and reduce antimicrobial resistance (AMR). Methods: A nationally representative cross-sectional survey (N = 2004) was conducted between November 2020 and January 2021. Knowledge of antibiotic use and AMR using the World Health Organization’s Multi-Country AMR Survey questionnaire, and antibiotic practices were examined. Multivariable logistic regression was performed to identify factors associated with inappropriate antibiotic use and examine effect measure modifications. Results: After adjusting for potential confounding, poor knowledge of antibiotic use was associated with a 3x increased odds of inappropriate antibiotic use in …

Why Companies Practice Corporate Social Responsibility, Shawn Pope, Alwyn Lim

Research Collection School of Social Sciences

The article discussed why companies practice corporate social responsibility (CSR) and their meta-analysis of 200 surveys over 20 years found that CSR is often embraced as a “halo” strategy.

Politicians Polarize And Experts Depolarize Public Support For Covid-19 Management Policies Across Countries, A. Flores, J.C. Cole, S. Dickert, Kimin Eom, G.M. Jiga-Boy, T. Kogut, R. Loria, M. Mayorga, E.J. Pedersen, B. Pereira, E. Rubaltelli, D.K. Sherman, P. Slovic, D. Vastfjall, L. Van Boven

Research Collection School of Social Sciences

Political polarization impeded public support for policies to reduce the spread of COVID-19, much as polarization hinders responses to other contemporary challenges. Unlike previous theory and research that focused on the United States, the present research examined the effects of political elite cues and affective polarization on support for policies to manage the COVID-19 pandemic in seven countries (n = 12,955): Brazil, Israel, Italy, South Korea, Sweden, the United Kingdom, and the United States. Across countries, cues from political elites polarized public attitudes toward COVID-19 policies. Liberal and conservative respondents supported policies proposed by ingroup politicians and parties more than …

Reply To Komatsu Et Al.: From Local Social Mindfulness To Global Sustainability Efforts?, N. J. Van Doesum, R. O. Murphy, M. Gallucci, E. Aharonov-Majar, U. Athenstaedt, W. T. Au, L. Bai, R. Böhm, I. Bovina, N. R. Buchan, X. P. Chen, K. B. Dumont, J. B. Engelmann, K. Eriksson, Li, Norman P., S. Fiedler, J. Friesen, S. Gächter, C. Garcia, R. González

Research Collection School of Social Sciences

Komatsu et al. (1) argue that Van Doesum et al. (2) may have overlooked the role of GDP in reporting a positive association between social mindfulness (SoMi) and the Environmental Performance Index (EPI) at country level. Although the relationship between EPI and SoMi is relatively weaker for countries with higher GDP, that does not imply that the overall observed relationship is a statistical artifact. Rather, it implies that GDP may be a moderator of the relationship between EPI and SoMi. The observed correlation is a valid result on average across countries, and the actual effect size would, at least to …

Old Minds, New Marketplaces: How Evolved Psychological Mechanisms Trigger Mismatched Food Preferences, Michal Folwarczny, Tobias Otterbring, Valdimar Sigurdsson, Lynn K. L. Tan, Norman P. Li

Research Collection School of Social Sciences

Principally due to unhealthy food choices, almost half of adults worldwide are overweight or obese. Current food retail practices bear some responsibility for such public health issues. We argue that numerous attempts to promote healthy eating have been unsuccessful due to the failure to account for our outdated evolved food selection mechanisms. Building on the evolutionary mismatch hypothesis and contrasting ancestral versus present-day foraging environments, we discuss how marketing activities exploit evolutionarily old food preferences and elicit unhealthy food choices for profit maximization at the expense of public health in terms of food consumption. We conclude by explaining how to …

Exploring How Online Responses Change In Response To Debunking Messages About Covid-19 On Whatsapp, Xingyu Ken Chen, Jin-Cheon Na, Luke Kien-Weng Tan, Mark Chong, Murphy Choy

Research Collection Lee Kong Chian School Of Business

Purpose: The COVID-19 pandemic has spurred a concurrent outbreak of false information online. Debunking false information about a health crisis is critical as misinformation can trigger protests or panic, which necessitates a better understanding of it. This exploratory study examined the effects of debunking messages on a COVID-19-related public chat on WhatsApp in Singapore. Design/methodology/approach: To understand the effects of debunking messages about COVID-19 on WhatsApp conversations, the following was studied. The relationship between source credibility (i.e. characteristics of a communicator that affect the receiver's acceptance of the message) of different debunking message types and their effects on the length …

Improperly Obtained Evidence In Criminal Proceedings: An Updated Framework, Siyuan Chen, Zhi Jia Koh, Jian Wei Joel Soon

Research Collection Yong Pung How School Of Law

The 2012 amendments to the Evidence Act “significantly broadened the admissibility criteria for expert evidence”; at the same time, the judicial discretion to deny admissibility of relevant expert opinion evidence was also introduced. This article considers the key developments pre- and post-amendments, and in doing so provides an updated framework for prosecutors and defence counsel alike to admit and challenge expert opinion evidence in criminal proceedings. Since it complements earlier articles in this series on similar fact and hearsay evidence, readers are assumed to be broadly familiar with the features of the Evidence Act, such as its admissibility paradigm, the …

Climate Change And Sustainability In Asean Countries, David K. Ding, Sarah E. Beh

Research Collection Lee Kong Chian School Of Business

The ASEAN region is one of the most susceptible regions to climate change, with three of its countries—Myanmar, the Philippines, and Thailand—among those that have suffered the greatest fatalities and economic losses because of climate-related disasters. This paper reveals that the ASEAN’s environmental performance is sorely lagging other regions despite evidence of its cohesive and comprehensive efforts to mitigate emissions and build up adaptive capacity to climate-related disasters. Within the ASEAN, there exist gaps in environmental performance between each country. This suggests that increased cooperation between individual ASEAN countries is pertinent for the region to collectively combat climate change. In …

Action-Centric Relation Transformer Network For Video Question Answering, Jipeng Zhang, Jie Shao, Rui Cao, Lianli Gao, Xing Xu, Heng Tao Shen

Research Collection School Of Computing and Information Systems

Video question answering (VideoQA) has emerged as a popular research topic in recent years. Enormous efforts have been devoted to developing more effective fusion strategies and better intra-modal feature preparation. To explore these issues further, we identify two key problems. (1) Current works take almost no account of introducing action of interest in video representation. Additionally, there exists insufficient labeling data on where the action of interest is in many datasets. However, questions in VideoQA are usually action-centric. (2) Frame-to-frame relations, which can provide useful temporal attributes (e.g., state transition, action counting), lack relevant research. Based on these observations, we …