Digital Commons Network^™

Long‐Term Effects Of Artificial Nighttime Lighting And Trophic Complexity On Plant Biomass And Foliar Carbon And Nitrogen In A Grassland Community, Vinka Anic, Kevin J. Gaston, Thomas W. Davies, Jonathan Bennie

School of Biological and Marine Sciences

No abstract provided.

Ocean Connectedness And Consumer Responses To Single-Use Packaging, Sohvi Nuojua, Sabine Pahl, Richard Thompson

School of Biological and Marine Sciences

Single-use packaging items constitute a large proportion of the plastic litter found in the marine environment. Consumer decisions contribute to the accumulation of this pollution in the environment. Here we undertook two studies to assess consumer responses to different types of single-use packaging. Moreover, we introduce a new measure of ocean connectedness adapted from nature connectedness measures and investigate its association with consumer response. In Study 1, 60 UK undergraduate students completed a packaging rating task and a survey on ocean connectedness in a laboratory environment. In the rating task pictures of bottled drinks with unique combinations of packaging recyclability …

Delivery Room St Segment Analysis To Predict Short Term Outcomes In Near-Term And Term Newborns, Jorgen Linde, Anne Lee Solevag, Joar Eilevstjonn, Ladislaus Blacy, Hussein Kidanto, Hege Ersadal, Claus Klingenberg

Obstetrics and Gynaecology, East Africa

Background: ST-segment changes to the fetal electrocardiogram (ECG) may indicate fetal acidosis. No large-scale characterization of ECG morphology immediately after birth has been performed, but ECG is used for heart rate (HR) assessment. We aimed to investigate ECG morphology immediately after birth in asphyxiated infants, using one-lead dry-electrode ECG developed for HR measurement.

Methods: Observational study in Tanzania, between 2013–2018. Near-term and term infants that received bag-mask ventilation (BMV), and healthy controls, were monitored with one-lead dry-electrode ECG with a non-diagnostic bandwidth. ECGs were classified as normal, with ST-elevations or other ST-segment abnormalities including a biphasic ST-segment. We analyzed ECG …

Augmented Reality In Retail And Its Impact On Sales, Yong Chin Tan, Sandeep R. Chandukala, Srinivas K. Reddy

Research Collection Lee Kong Chian School Of Business

The rise of Augmented Reality (AR) technology presents marketers with promising opportunities to engage customers and transform their brand experience. While firms are keen to invest in AR, research documenting its tangible impact in real-world contexts is sparse. In this article, the authors outline four broad uses of the technology in retail settings. Next, they focus specifically on the use of AR to facilitate product evaluation prior to purchase, and empirically investigate its impact on sales in online retail. Using data obtained from an international cosmetics retailer, they find that AR usage on the retailer’s mobile app is associated with …

What Does Homophily Do? A Review Of The Consequences Of Homophily, Gokhan Ertug, Julia Brennecke, Balaza Kovacs, Tengjian Zou

Research Collection Lee Kong Chian School Of Business

Understanding the consequences of homophily, which is among the most widely observed social phenomena, is important, with implications for management theory and practice. Therefore, we review management research on the consequences of homophily. As the consequences of homophily have been studied at the individual, dyad, team, organizational, and macro levels, we structure our review accordingly. We highlight findings that are consistent and contradictory, as well as those that point to boundary conditions or moderators. In conducting our review, we also derive implications for management research from insights gained by research in other disciplines on this topic. We raise specific issues …

Concept Links And Return Momentum, Qianqian Du, Dawei Liang, Zilin Chen, Jun Tu

Research Collection Lee Kong Chian School Of Business

Unlike traditional asset categories (e.g., industry classifications) that are generally defined clearly, some groups of stocks are tied to certain loosely defined “concepts” (e.g., e-commerce). When investors find it difficult to analyze ambiguous concept-oriented information, information diffuses slowly, creating “concept momentum”. Based on unique concept data in the Chinese stock market, this study constructs a concept-momentum strategy that involves buying stocks from past winning concepts and selling stocks from past losing concepts, which can generate pronounced abnormal returns. Neither risk factors, firm-level momentum, nor industry-level momentum can explain concept momentum. Furthermore, we find that both the underreaction and cross-stock lead-lag …

Killing The Cat? A Review Of Curiosity At Work, Filip Lievens, Spencer H. Harrison, Patrick Mussel, Jordan A. Litman

Research Collection Lee Kong Chian School Of Business

This paper focuses on the emergent importance of curiosity at work for individuals and organizations by reviewing management research on curiosity at work. We start by leveraging prior reviews on early and contemporary foundations of the curiosity construct in the larger psychological literature, with a focus on definitional clarity, dimensionality, and differences with other constructs in its nomological network. Next, we review different streams of management research on curiosity at work (i.e., broad generative and nongenerative effects, curiosity as a catalyst for personal action, curiosity as a catalyst for interpersonal action, curiosity as a catalyst for leadership, curiosity as an …

Managing Stochastic Bucket Brigades On Discrete Work Stations, Peng Wang, Kai Pan, Zhenzhen Yan, Yun Fong Lim

Research Collection Lee Kong Chian School Of Business

Bucket brigades are notably used to coordinate workers in production systems. We study a J-station, I-worker bucket brigade system. The time duration for each worker to serve a job at a station is exponentially distributed with a rate that depends on the station's expected work content and the worker's work speed. Our goal is to maximize the system's productivity or to minimize its inter-completion time variability. We analytically derive the throughput and the coefficient of variation (CV) of the inter-completion time. We study the system under two cases. (i) If the work speeds depend only on the workers, the throughput …

Smart Heuristics For Individuals, Teams, And Organizations, Gerd Gigerenzer, Jochen Reb, Shenghua Luan

Research Collection Lee Kong Chian School Of Business

Heuristics are fast, frugal, and accurate strategies that enable rather than limit decision making under uncertainty. Uncertainty, as opposed to calculable risk, is characteristic of most organizational contexts. We review existing research and offer a descriptive and prescriptive theoretical framework to integrate the current patchwork of heuristics scattered across various areas of organizational studies. Research on the adaptive toolbox is descriptive, identifying the repertoire of heuristics on which individuals, teams, and organizations rely. Research on ecological rationality is prescriptive, specifying the conditions under which a given heuristic performs well, that is, when it is smart. Our review finds a relatively …

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 …

Schedule Reliability In Liner Shipping Timetable Design: A Convex Programming Approach, Abraham Zhang, Zhichao Zheng, Chung-Piaw Teo

Research Collection Lee Kong Chian School Of Business

Container liner shipping is the primary mode of moving manufactured products across continents. Partly due to inherent uncertainties at sea and ports, the liner shipping industry has long had a notorious reputation of schedule delays and unreliable on-time performance. This paper formulates a new approach to incorporate schedule reliability targets in liner shipping timetable design, to balance bunker consumption, time taken for the voyage, and schedule delays. We first model a surrogate problem using a copositive program through a moment decomposition approach and solve it as a convex semidefinite programming relaxation. We next incorporate schedule reliability targets implicitly by exploiting …

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 …

Conditional Relationship Between Distress Risk And Stock Returns, Su Hee Yun, Jung Min Kim

Research Collection Lee Kong Chian School Of Business

Purpose: Previous research on the relationship between a firm’s distress risk and future stock returns produces inconsistent results. This study attempts to explain the conflicting results of earlier studies by showing that systematic distress risk leads to positive rewards, while unsystematic distress risk leads to low stock returns. In addition, this study intends to elucidate the factors of systematic distress risk and unsystematic distress risk, respectively. In this way, this study informs the rational investor what kind of distress risk they should take. Design/methodology/approach: This study considers two distress-predictor sets to show a possibility between distress risk and stock returns …

Value And Purpose Of Management Education: Looking Back And Thinking Forward In Global Focus, Eric Cornuel, Howard Thomas, Matthew Wood

Research Collection Lee Kong Chian School Of Business

Without a doubt, business schools have been a success story in higher education over the last 50 years (the period of EFMD’s existence). Even so, they have come under scrutiny, and attack, over their academic legitimacy and value proposition for business and society. In this book, drawn from a special issue of Global Focus, the EFMD has selected around 25 of the best, most thoughtful short papers published in Global Focus to examine the role and purpose of EFMD in the evolution of management education. Each of the chapters interpret current strategic debates about the evolution of business schools and …

Support For Increasing Low-Wage Workers’ Compensation: The Role Of Fixed-Growth Mindsets About Intelligence, Shilpa Madan, Anyi Ma, Neeraj Pandey, Aneeta Rattan, Krishna Savani

Research Collection Lee Kong Chian School Of Business

Approximately 44% of U.S. workers are low-wage workers. Recent years have witnessed a raging debate about whether to raise their minimum wages. Why do some decision-makers support raising wages and others do not? Ten studies (four preregistered) examined people’s beliefs about the malleability of intelligence as a key antecedent. The more U.S. human resource managers (Study 1) and Indian business owners (Study 2) believed that people’s intelligence can grow (i.e., had a growth mindset), the more they supported increasing low-wage workers’ compensation. In key U.S. swing states (Study 3a), and a nationally representative sample (Study 3b), residents with a more …

How Does Firm Scope Depend On Customer Switching Costs? Evidence From Mobile Telecommunications Markets, Niloofar Abolfathi, Simone Santamaria, Charles Williams

Research Collection Lee Kong Chian School Of Business

This paper examines the relative advantages of single-product and multiproduct firms following changes in customer switching costs. Whereas a single-product firm can closely tailor offerings to customers' needs, a multiproduct firm can create value for customers in the form of flexibility, allowing them to change between product varieties as preferences evolve without needing to switch providers. We argue that this value-creation mechanism is more effective when customers face high switching costs and explore this prediction in the mobile telecommunications sector, using an exogenous policy change (mobile number portability) that suddenly decreases customer switching costs. Our results reveal that when customer …

Seeking Stability: Consumer Motivations For Communal Nostalgia, Minju Han, George E. Newman

Research Collection Lee Kong Chian School Of Business

Existing research has examined why consumers are drawn to things from their past (personal nostalgia). However, little empirical work has examined why consumers prefer products that were never a part of their personal history (communal nostalgia). For example, a consumer may purchase vinyl records even though she grew up listening to mp3 files. Here, we find that one reason why consumers may be drawn to communal nostalgia is that it can provide a sense of social stability. Drawing on System Justification Theory (Jost & Banaji, British Journal of Social Psychology, 33, 1994 and 1-27), we demonstrate that perceived threats to …

Social Media Influencers In Crisis: Providing Counsel On Instagram, Pang, A., Debbie Lee, Gindelin Low, Valerie Hum

Research Collection Lee Kong Chian School Of Business

Increasingly, organizations are harnessing social media influencers (SMIs) as third-party advocates or key opinion leaders (KOLs). Consumers view them as knowledgeable sources of information (Tuten & Solomon, 2017). In the United States, the Kardashians are used by a number of organizations to promote their products. Yang (2019) noted that while Western influencers are mostly video bloggers on Instagram or YouTube, Chinese KOLs have multiple channels, including social media platforms WeChat and Weibo, social networking sites Douban or TikTok. Figures from 2016 point to it as a US$8.6 billion industry in China (Yang, 2019).

Dark Social Influencer Engagement In Brand Communication, Jason Shi-Yang Lim, Claresta Si Ya Yeo, Weihui Leow, Xian Hui Ng, Augustine Pang

Research Collection Lee Kong Chian School Of Business

Increasingly, consumers are seeking immediate and personalized communication with businesses (Facebook, 2018) and organizations are expected to engage customers in a two-way dialogue. Engagement encapsulates “high relevance of brands to consumers and the development of an emotional connection between consumers and brands” (Rappaport, 2007, p. 138). Online engagement connotes commitment to a relationship, “personified by the website or other computer-mediated entities designed to communicate brand value” (Mollen & Wilson, 2010, p. 923). To engage consumers, businesses are turning to social media influencers (SMIs), who have their own social networks online (Khamis et al., 2016). Growing concerns over privacy and control …

Quantifying The 3d Structure And Function Of Porosity And Pore Space In Natural Sediment Flocs, Tj Lawrence, Sj Carr, Jat Wheatland, Aj Manning, Kl Spencer

School of Biological and Marine Sciences

Purpose Flocculated cohesive suspended sediments (flocs) play an important role in all aquatic environments, facilitating the transport and deposition of sediment and associated contaminants with consequences for aquatic health, material fluxes, and morphological evolution. Accurate modelling of the transport and behaviour of these sediments is critical for a variety of activities including fisheries, aquaculture, shipping, and waste and pollution management and this requires accurate measurement of the physical properties of flocs including porosity. Methods Despite the importance of understanding floc porosity, measurement approaches are indirect or inferential. Here, using μCT, a novel processing and analysis protocol, we directly quantify porosity …

Cyber-Physical Security For Ports Infrastructure, Iosif Progoulakis, Nikitas Nikitakos, Dimitrios Dalaklis, Razali Yaacob

Conference Papers

Taking advantage of the benefits associated with digital means has become a main priority for ports globally. The effective and smooth integration of Information Technology (IT) applications and those systems that support the conduct of operations (Operational Technology (OT) systems), along with the accurate “adjustment” of the human factor elements should be viewed as a very critical pillar for optimized safe and efficient operations in ports. The afore mentioned assimilation characterizes cyber-physical systems and entails an extended number of IT and OT modules, systems and tasks involving various data transmission routes that are advancing in a technological and operational level …

Automated Lifeboat Manifestation Embarkation System (Almes): Facilitating Evacuation/Manifestation On Passenger And Cruise Vessels, Antonios Andreadakis, Dimitrios Dalaklis, Nikitas Nikitakos, Avtandil Gegenava

Conference Papers

A plethora of catastrophic disasters resulting in numerous life-losses at sea can be noted, while searching and studying Maritime History. On a positive notion, through the course of time, the maritime industry has experienced technological innovations and advancements in many areas that truly metamorphosed the conduct of safe navigation, the radio-communications field and shed light to many chronic issues of the industry. In an epoch of various significant advancements in many areas of the operation of a vessel, it is quite surprising to notice that analogous progress has not been made in the manifestation/evacuation procedures followed today on cruise and …

Treasury Inconvenience Yields During The Covid-19 Crisis, Zhiguo He, Stefan Nagel, Zhaogang Song

Research Collection Lee Kong Chian School Of Business

In sharp contrast to most previous crisis episodes, the Treasury market experienced severe stress and illiquidity during the COVID-19 crisis, raising concerns that the safe-haven status of US Treasuries may be eroding. We document large shifts in Treasury ownership and temporary accumulation of Treasury and reverse repo positions on dealer balance sheets during this period. We build a dynamic equilibrium asset pricing model in which dealers subject to regulatory balance sheet constraints intermediate demand/supply shocks from habitat agents and provide repo financing to levered investors. The model predicts that Treasury inconvenience yields, measured as the spread between Treasuries and overnight-index …

Mental Health Interventions For International Seafarers During The Covid-19 Pandemic : A Pilot Study, Sanley Abila, Lijun Tang, Momoko Kitada, Serafin Malecosio, Rhea Subong

Reports

The COVID-19 pandemic has highlighted the key role that seafarers play in the global supply chain. As the pandemic took hold in early 2020 a significant crew change crisis unfolded globally due to border closures, strict quarantine requirements and a faltering vaccination rollout. In normal times the mental health of seafarers has been recognised as crucial to their wellbeing and safety at sea. Stranded aboard their vessels and with an unclear pathway out of the pandemic the mental health of seafarers deteriorated significantly driving some to suicide.

With 400,000 seafarers stranded at sea at one point, the issue was framed …