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Articles 1861 - 1890 of 9281
Full-Text Articles in Social and Behavioral Sciences
Designing Successful Strategic Partnerships, Anurag Vij
Designing Successful Strategic Partnerships, Anurag Vij
Asian Management Insights
The Achilles’ heel of digital transformation.
External Asset Managers In Singapore, T. Mandy Tham, Esther Kong, Juliana Koh
External Asset Managers In Singapore, T. Mandy Tham, Esther Kong, Juliana Koh
Asian Management Insights
Opportunities and challenges for the sector.
Philanthropy In Asia, Naina Subberwal Batra
Philanthropy In Asia, Naina Subberwal Batra
Asian Management Insights
Its changing face and evolution.
Hci Education And Ux Practice: Highlights From Singapore, Tamas Makany, Dharani Perera-Schulz
Hci Education And Ux Practice: Highlights From Singapore, Tamas Makany, Dharani Perera-Schulz
Research Collection Lee Kong Chian School Of Business
This position paper highlights trends in education, practice, and support of HCI/UX in Singapore, a small city-state island in Southeast Asia. The paper was prepared for the 2022 Southeast Asia Computer-Human Interaction (SEACHI'22) virtual workshop on Apr 14, 2022, as part of the ACM CHI Conference on Human Factors in Computing Systems (CHI'22) international conference.
Variation And Efficiency Of High-Frequency Betas, Congshan Zhang, Jia Li, Viktor Todorov, George Tauchen
Variation And Efficiency Of High-Frequency Betas, Congshan Zhang, Jia Li, Viktor Todorov, George Tauchen
Research Collection School Of Economics
This paper studies the efficient estimation of betas from high-frequency return data on a fixed time interval. Under an assumption of equal diffusive and jump betas, we derive the semiparametric efficiency bound for estimating the common beta and develop an adaptive estimator that attains the efficiency bound. We further propose a Hausman type test for deciding whether the common beta assumption is true from the high-frequency data. In our empirical analysis we provide examples of stocks and time periods for which a common market beta assumption appears true and ones for which this is not the case. We further quantify …
Transboundary Air Pollution And Cross-Border Cooperation: Insights From Marine Vessel Emissions Regulations In Hong Kong And Shenzhen, Seung Kyum Kim, Terry Van Gevelt, Paul Joosse, Mia M. Bennett
Transboundary Air Pollution And Cross-Border Cooperation: Insights From Marine Vessel Emissions Regulations In Hong Kong And Shenzhen, Seung Kyum Kim, Terry Van Gevelt, Paul Joosse, Mia M. Bennett
Research Collection College of Integrative Studies
Many coastal cities regulate shipping emissions within their jurisdictions. However, the transboundary nature of air pollution makes such efforts largely ineffective unless they are accompanied by reciprocal, legally-binding regulatory agreements with neighbouring cities. Due to various technical, economic, and institutional barriers, it has thus far been difficult to isolate the effects of legally-binding cross-border cooperation on vessel emissions at the city-level. We exploit the unique administrative characteristics of Hong Kong and its relationship with neighbouring cities in China's Pearl River Delta to isolate the effect of legally-binding cross-border cooperation. Using a regression discontinuity design, we find that Hong Kong's unilateral …
Taking Health-Risks As A Short-Term Mating Strategy, Alvin Jun Jie Wong
Taking Health-Risks As A Short-Term Mating Strategy, Alvin Jun Jie Wong
Dissertations and Theses Collection (Open Access)
Diseases pose a recurring, and often indiscriminate threat to the health of individuals. However, there exists a wide range of behavioral responses between individuals when it comes to taking health precautions or undertaking risks in response to this perennial threat, with some responses seeming maladaptive to an individual’s survival. The present study adopts the lens of evolutionary psychology and suggests that taking health risks represent a short-term mating strategy in men, which potentially trades survival for reproductive fitness. Taking health risks is hypothesized to be an honest signal of both good genes and a strong physiological immune system, both of …
Sorry, Locals Only: An Experimental Investigation Of The Affective, Behavioural, And Cognitive Consequences Of National Identity Denial, Nadyanna Binte Mohamed Majeed
Sorry, Locals Only: An Experimental Investigation Of The Affective, Behavioural, And Cognitive Consequences Of National Identity Denial, Nadyanna Binte Mohamed Majeed
Dissertations and Theses Collection (Open Access)
Existing literature shows that experiences of identity denial and questioning (IDQ) present two major consequences for racial minority groups: increased negative affect and behaviours to reassert one’s identity. The current thesis addresses two limitations in this literature—concerns about generalisability to non-US contexts, and potential consequences for cognitive functioning—by examining IDQ effects on individuals from distinct racial groups in Singapore. Through a correlational survey, Study 1 provided evidence for the incidence of IDQ in Singapore across the three racial groups, although IDQ reports were generally higher among racial minority groups (i.e., Malay and Indian) than the racial majority group (i.e., Chinese). …
Dual Pathways To Burnout And Engagement: The Role Of Personal Goal Facilitation Through Work, Self-Discrepancy And Emotions, Bek Wuay Tang
Dual Pathways To Burnout And Engagement: The Role Of Personal Goal Facilitation Through Work, Self-Discrepancy And Emotions, Bek Wuay Tang
Dissertations and Theses Collection (Open Access)
According to the job-person fit framework, workplace burnout is often exacerbated by mismatches between the characteristics of the employee and the organization. Consistent with this view, past research has found that employees who perceive low personal goal facilitation through work (PGFW) report higher levels of burnout. However, personal goals were often assessed nomothetically, based on the assumption that individuals across occupational groups share similar personal goals they would like to achieve through work. The current research took an idiographic approach by examining if PGFW assessed based on individuals’ uniquely defined personal goals would predict burnout and work engagement. In addition, …
Probabilistic Fixed Ballot Rules And Hybrid Domains, Shurojit Chatterji, Souvik Roy, Soumyarup Sadhukhan, Arunava Sen, Huaxia Zeng
Probabilistic Fixed Ballot Rules And Hybrid Domains, Shurojit Chatterji, Souvik Roy, Soumyarup Sadhukhan, Arunava Sen, Huaxia Zeng
Research Collection School Of Economics
We study a class of preference domains that satisfies the familiar properties of minimal richness, diversity and no-restoration. We show that a specific preference restriction, hybridness, has been embedded in these domains so that the preferences are single-peaked at the “extremes” and unrestricted in the “middle”. We also study the structure of strategy-proof and unanimous Random Social Choice Functions on these domains. We show them to be special cases of probabilistic fixed ballot rules (introduced by Ehlers, Peters, and Storcken (2002)).
Energy Balances, Thermal Performance, And Heat Stress: Disentangling Occupant Behaviour And Weather Influences In A Dutch Net-Zero Energy Neighborhood, Hussain Kazmi, Merel Keijsers, Fahad Mehmood, Clayton Miller
Energy Balances, Thermal Performance, And Heat Stress: Disentangling Occupant Behaviour And Weather Influences In A Dutch Net-Zero Energy Neighborhood, Hussain Kazmi, Merel Keijsers, Fahad Mehmood, Clayton Miller
Research Collection College of Integrative Studies
Decarbonizing the building stock is a central component of global climate change mitigation efforts. In practice, this decarbonization can be achieved by a variety of different measures, including improvements in building energy efficiency, electrification of energy demand to reduce reliance on fossil fuels, and installation of distributed (renewable) generation in conjunction with flexible storage. However, these large-scale, often disruptive changes to the built environment also raise a number of concerns, such as loss of occupant comfort exacerbated by climate change, and introduction of additional stressors on the distribution grid. In this paper, we demonstrate several conclusions using detailed sub-hourly data …
Sentiment Analysis Of Weather-Related Tweets From Cities Within Hot Climates, Yuliya Dzyuban, Graces N. Y. Ching, Sin Kang Yik, Adrian J. Tan, Peter J. Crank, Shreya Banerjee, Rachel Xin Yi Pek, Winston T. L. Chow
Sentiment Analysis Of Weather-Related Tweets From Cities Within Hot Climates, Yuliya Dzyuban, Graces N. Y. Ching, Sin Kang Yik, Adrian J. Tan, Peter J. Crank, Shreya Banerjee, Rachel Xin Yi Pek, Winston T. L. Chow
Research Collection College of Integrative Studies
Evidence exists that exposure to weather hazards, particularly in cities subject to heat island and climate change impacts, strongly affects individuals’ physical and mental health. Personal exposure to and sentiments about warm conditions can currently be expressed on social media, and recent research noted that the geotagged, time-stamped, and accessible social media databases can potentially be indicative of the public mood and health for a region. This study attempts to understand the relationships between weather and social media sentiments via Twitter and weather data from 2012 to 2019 for two cities in hot climates: Singapore and Phoenix, Arizona. We first …
Competition And Third-Party Platform-Integration In Ride-Sourcing Markets, Yaqian Zhou, Hai Yang, Jintao Ke, Hai Wang, Xinwei Li
Competition And Third-Party Platform-Integration In Ride-Sourcing Markets, Yaqian Zhou, Hai Yang, Jintao Ke, Hai Wang, Xinwei Li
Research Collection School Of Computing and Information Systems
Recently, some third-party integrators attempt to integrate the ride services offered by multiple independent ride-sourcing platforms. Accordingly, passengers can request ride through the integrators and receive ride service from any one of the ride-sourcing platforms. This novel business model, termed as third-party platform-integration in this work, has potentials to alleviate market fragmentation cost resulting from demand splitting among multiple platforms. Although most existing studies focus on operation strategies for one single monopolist platform, much less is known about the competition and platform-integration and their implications on operation strategy and system efficiency. In this work, we propose mathematical models to describe …
Managing The Phaseout Of Coal Power: A Comparison Of Power Decarbonization Pathways In Jilin Province, Weirong Zhang, Zhixu Meng, Jiongjun Yang, Yan Song, Yiou Zhou, Changhong Zhao, Jiahai Yuan
Managing The Phaseout Of Coal Power: A Comparison Of Power Decarbonization Pathways In Jilin Province, Weirong Zhang, Zhixu Meng, Jiongjun Yang, Yan Song, Yiou Zhou, Changhong Zhao, Jiahai Yuan
Research Collection School Of Computing and Information Systems
With the periodic goals of reaching carbon emission peak before 2030 and achieving carbon neutrality before 2060 (“dual carbon” goals), China shows its unprecedented determination to coal power phaseout. This research takes Jilin Province to showcase possible pathways of coal power units’ phaseout on provincial level. We set up four different coal power phaseout scenarios, under which their transition cost and effectiveness would be calculated, respectively. In terms of natural resource endowment and electricity demand, Jilin Province would achieve a complete coal power phaseout by 2045 or even by 2040. However, after assessing the effectiveness of power transition under the …
Labor Market Institutions And The Incidence Of Payroll Taxation, Jinyoung Kim, Seonghoon Kim, Kanghyock Koh
Labor Market Institutions And The Incidence Of Payroll Taxation, Jinyoung Kim, Seonghoon Kim, Kanghyock Koh
Research Collection School Of Economics
Despite the unambiguous predictions of the canonical model of a competitive labor market, empirical studies of the labor market effects of payroll taxation provide conflicting evidence. We estimate the labor market impacts of payroll taxation in Singapore, the country with the most competitive and flexible labor market among the countries investigated in the literature. By exploiting the sharp reduction in payroll tax rate when workers turn 60, we find that the reduced payroll tax rate in Singapore has a large effect on wages without changes in employment. Our meta-analysis shows consistent evidence that varying degrees of labor market competitiveness across …
Labor Market Participation, Income Distribution, And Welfare Gains From Trade, Pao-Li Chang, Yi-Fan Chen, Wen-Tai Hsu
Labor Market Participation, Income Distribution, And Welfare Gains From Trade, Pao-Li Chang, Yi-Fan Chen, Wen-Tai Hsu
Research Collection School Of Economics
We develop a general equilibrium trade model where households with skill heterogeneity choose between home production and working on the labor market. Unlike most of the trade literature, the labor supply is elastic and is heterogeneous across households. As a result, trade affects labor participation, income, and welfare differently across households. We show that, when market goods and home goods are substitutes, households with lower skill levels expe-rience higher proportional increase to their income, while households with higher skill levels experience higher proportional increase in welfare. We further show that elastic labor supply preserves the extensive margin of welfare gains …
Coping Strategies Mediate The Relation Between Executive Functions And Life Satisfaction In Middle And Late Adulthood: A Structural Equational Analysis, Hui Si Oh, Hwajin Yang
Coping Strategies Mediate The Relation Between Executive Functions And Life Satisfaction In Middle And Late Adulthood: A Structural Equational Analysis, Hui Si Oh, Hwajin Yang
Research Collection School of Social Sciences
Recent studies have suggested that executive functions (EF) predict life satisfaction for older adults. However, the mechanism is not known. By analyzing a sample (N = 3,287, ages 32- 84 years) from the Midlife Development in the United States 2, we examined the mediational role of coping strategies in the relation between EF and life satisfaction. Both active coping and behavioral disengagement mediated the relation between EF and life satisfaction, and age significantly moderated the mediational pathways. Specifically, the positive effect of EF on active coping was more pronounced in middle-aged and older adults than in young adults. However, the …
Gender, Bottom-Line Mentality, And Workplace Mistreatment: The Roles Of Gender Norm Violation And Team Gender Composition, Kenneth Tai, Kiyoung Lee, Eugene Kim, Tiffany D. Johnson, Wei Wang, Michelle K. Duffy, Seongsu Kim
Gender, Bottom-Line Mentality, And Workplace Mistreatment: The Roles Of Gender Norm Violation And Team Gender Composition, Kenneth Tai, Kiyoung Lee, Eugene Kim, Tiffany D. Johnson, Wei Wang, Michelle K. Duffy, Seongsu Kim
Research Collection Lee Kong Chian School Of Business
Although gender has been identified as an important antecedent in workplace mistreatment research, empirical research has shown mixed results. Drawing on role congruity theory, we propose an interactive effect of gender and bottom-line mentality on being the target of mistreatment. Across two field studies, our results showed that whereas women experienced more mistreatment when they had higher levels of bottom-line mentality, men experienced more mistreatment when they had lower levels of bottom-line mentality. In another field study, using round-robin survey data, we found that team gender composition influenced the degree to which the adoption of a bottom-line mentality by female …
The Vigilante Identity And Organizations, Fan Xuan Chen, Maja Graso, Karl Aquino, Lily Lin, Joey T. Cheng, Katherine Decelles, Abhijeet K. Vadera
The Vigilante Identity And Organizations, Fan Xuan Chen, Maja Graso, Karl Aquino, Lily Lin, Joey T. Cheng, Katherine Decelles, Abhijeet K. Vadera
Research Collection Lee Kong Chian School Of Business
We test the theoretical and practical utility of the vigilante identity, a self-perception of being the kind of person who monitors their environment for signs of norm violations, and who punishes the perceived norm violator, without formal authority. We develop and validate a measure of the vigilante identity scale (VIS) and demonstrate the scale’s incremental predictive validity above and beyond seemingly related constructs (Studies 1 – 2e). We show that the VIS predicts hypervigilance towards organizational wrongdoing (Studies 2 and 4), punishment intentions and behavior in and of organizations (Studies 3 and 4) as well as in the wider community …
Hci In Southeast Asia: The Journey Forward, E. Sari, J.A. Tedjasaputra, Y. Kurniawan, E. Zulaikha, A. Asfarian, M. Ghazali, A. Sivaji, J.A. Abu Bakar, C.Y. Wong, N.M. Norowi, Tamas Makany, D. Perera-Schulz, T. Chintakovid, S. Nuchitprasitchai, Ethel Ong
Hci In Southeast Asia: The Journey Forward, E. Sari, J.A. Tedjasaputra, Y. Kurniawan, E. Zulaikha, A. Asfarian, M. Ghazali, A. Sivaji, J.A. Abu Bakar, C.Y. Wong, N.M. Norowi, Tamas Makany, D. Perera-Schulz, T. Chintakovid, S. Nuchitprasitchai, Ethel Ong
Research Collection Lee Kong Chian School Of Business
SEACHI 2022 has been conducted to bring HCI and UX leaders in Southeast Asia to discuss the current state-of-the-art HCI and UX teaching, practice, and support they experience in their region. This activity aims to explore the potentials and challenges and identify the gaps amongst different sectors in different countries. Through this workshop, we will have a common understanding of what we face. It explores how we can work collaboratively to achieve a better purpose, i.e., to grow HCI and UX fields in Southeast Asia. This one-day online workshop was conducted as a collocated event of CHI 2022 and was …
Inflation And Ukraine War Make It Challenging For Our Beloved Value Stores To Survive, Aurobindo Ghosh, Taimur Baig
Inflation And Ukraine War Make It Challenging For Our Beloved Value Stores To Survive, Aurobindo Ghosh, Taimur Baig
Research Collection Lee Kong Chian School Of Business
In a joint commentary, SMU Assistant Professor of Finance (Education) and Principal Investigator of DBS-SKBI Singapore Index of Inflation Expectations Project Aurobindo Ghosh and Chief Economist and Managing Director at DBS Bank Dr Taimur Baig discussed how global inflationary pressures and rising commodity prices due to war in Ukraine and sanctions against Russia are culminating into a perfect storm and making it challenging for value stores to survive. They also gave advice on what value stores can do to survive this perfect storm.
Guide On The Treatment Of Insolvent Micro And Small Enterprises In Asia, Aurelio Gurrea-Martinez
Guide On The Treatment Of Insolvent Micro And Small Enterprises In Asia, Aurelio Gurrea-Martinez
Research Collection Yong Pung How School Of Law
Micro and small enterprises (MSEs) represent the vast majority of businesses in all jurisdictions in Asia. Despite the economic relevance of MSEs and the importance of the insolvency process, most Asian jurisdictions do not have insolvency frameworks that are suitable for MSEs. The COVID-19 pandemic has further exacerbated the woes of these businesses. This Guide is thus prepared with a view of seeking to provide a set of principles or policy recommendations for the implementation of an efficient and effective insolvency framework for MSEs in Asia. These principles or policy recommendations include five key principles suggested for adoption by jurisdictions …
A Black-Scholes User's Guide To The Bachelier Model, Jaehyuk Choi, Minsuk Kwak, Chyng Wen Tee, Yumeng Wang
A Black-Scholes User's Guide To The Bachelier Model, Jaehyuk Choi, Minsuk Kwak, Chyng Wen Tee, Yumeng Wang
Research Collection Lee Kong Chian School Of Business
To cope with the negative oil futures price caused by the COVID-19 recession, global commodity futures exchanges switched the option model from Black-Scholes to Bachelier in April 2020. This study reviews the literature on Bachelier's pioneering option pricing model and summarizes the practical results on volatility conversion, risk management, stochastic volatility, and barrier options pricing to facilitate the model transition. In particular, using the displaced Black-Scholes model as a model family with the Black-Scholes and Bachelier models as special cases, we not only connect the two models but also present a continuous spectrum of model choices.
Limitations Of Machine Learning For Building Energy Prediction: Ashrae Great Energy Predictor Iii Kaggle Competition Error Analysis, Clayton Miller, Bianca Picchetti, Chun Fu, Jovan Pantelic
Limitations Of Machine Learning For Building Energy Prediction: Ashrae Great Energy Predictor Iii Kaggle Competition Error Analysis, Clayton Miller, Bianca Picchetti, Chun Fu, Jovan Pantelic
Research Collection College of Integrative Studies
Research is needed to explore the limitations and potential for improvement of machine learning for building energy prediction. With this aim, the ASHRAE Great Energy Predictor III (GEPIII) Kaggle competition was launched in 2019. This effort was the largest building energy meter machine learning competition of its kind, with 4370 participants who submitted 39,403 predictions. The test dataset included two years of hourly whole building readings from 2380 meters in 1448 buildings at 16 locations. This paper analyzes the various sources and types of residual model error from an aggregation of the competition’s top 50 solutions. This analysis reveals the …
Hierarchical Value Decomposition For Effective On-Demand Ride Pooling, Hao Jiang, Pradeep Varakantham
Hierarchical Value Decomposition For Effective On-Demand Ride Pooling, Hao Jiang, Pradeep Varakantham
Research Collection School Of Computing and Information Systems
On-demand ride-pooling (e.g., UberPool, GrabShare) services focus on serving multiple different customer requests using each vehicle, i.e., an empty or partially filled vehicle can be assigned requests from different passengers with different origins and destinations. On the other hand, in Taxi on Demand (ToD) services (e.g., UberX), one vehicle is assigned to only one request at a time. On-demand ride pooling is not only beneficial to customers (lower cost), drivers (higher revenue per trip) and aggregation companies (higher revenue), but is also of crucial importance to the environment as it reduces the number of vehicles required on the roads. Since …
Undiscounted Recursive Path Choice Models: Convergence Properties And Algorithms, Tien Mai, Emma Frejinger
Undiscounted Recursive Path Choice Models: Convergence Properties And Algorithms, Tien Mai, Emma Frejinger
Research Collection School Of Computing and Information Systems
Traffic flow predictions are central to a wealth of problems in transportation. Path choice models can be used for this purpose, and in state-of-the-art models—so-called recursive path choice (RPC) models—the choice of a path is formulated as a sequential arc choice process using undiscounted Markov decision process (MDP) with an absorbing state. The MDP has a utility maximization objective with unknown parameters that are estimated based on data. The estimation and prediction using RPC models require repeatedly solving value functions that are solutions to the Bellman equation. Although there are several examples of successful applications of RPC models in the …
Storm The Capitol: Linking Offline Political Speech And Online Twitter Extra-Representational Participation On Qanon And The January 6 Insurrection, Claire Seungeun Lee, Juan Merizalde, John D. Colautti, Jisun An, Haewoon Kwak
Storm The Capitol: Linking Offline Political Speech And Online Twitter Extra-Representational Participation On Qanon And The January 6 Insurrection, Claire Seungeun Lee, Juan Merizalde, John D. Colautti, Jisun An, Haewoon Kwak
Research Collection School Of Computing and Information Systems
The transfer of power stemming from the 2020 presidential election occurred during an unprecedented period in United States history. Uncertainty from the COVID-19 pandemic, ongoing societal tensions, and a fragile economy increased societal polarization, exacerbated by the outgoing president's offline rhetoric. As a result, online groups such as QAnon engaged in extra political participation beyond the traditional platforms. This research explores the link between offline political speech and online extra-representational participation by examining Twitter within the context of the January 6 insurrection. Using a mixed-methods approach of quantitative and qualitative thematic analyses, the study combines offline speech information with Twitter …
Neighborhood Cooperative Multiagent Reinforcement Learning For Adaptive Traffic Signal Control In Epidemic Regions, Chengwei Zhang, Yu Tian, Zhibin Zhang, Wanli Xue, Xiaofei Xie, Tianpei Yang, Xin Ge, Rong Chen
Neighborhood Cooperative Multiagent Reinforcement Learning For Adaptive Traffic Signal Control In Epidemic Regions, Chengwei Zhang, Yu Tian, Zhibin Zhang, Wanli Xue, Xiaofei Xie, Tianpei Yang, Xin Ge, Rong Chen
Research Collection School Of Computing and Information Systems
Nowadays, multiagent reinforcement learning (MARL) have shared significant advances in the adaptive traffic signal control (ATSC) problems. For most of the researches, agents are all isomorphic, which disregards the situation in which isomerous intersections cooperative together in a real ATSC scenario, especially in epidemic regions where different intersections have quite different levels of importance. To this end, this paper models the ATSC problem as a networked Markov game (NMG), in which agents take into account information, including traffic conditions of it and its connected neighbors. A cooperative MARL framework named neighborhood cooperative hysteretic DQN (NC-HDQN) is proposed. Specifically, for each …
Nonprofits As Socially Responsible Actors: Neoliberalism, Institutional Structures, And Empowerment In The United Nations Global Compact, Alwyn Lim
Research Collection School of Social Sciences
Nonprofit and nongovernmental organizations have become prominent participants in a global organizational responsibility movement. This trend of nonprofit responsibility is puzzling because nonprofits are presumably already dedicated to the pursuit of collective well-being objectives. This article examines the nonprofit responsibility movement from a cultural perspective, whereby broader cultural changes at the level of international organizations have constructed nonprofit entities as empowered and socially responsible actors. Using the case of the United Nations Global Compact, a global framework for corporate social responsibility, the author shows how (1) the construction of cultural meanings of autonomy and decentralization in the neoliberal context, (2) …
Sunshine On My Shoulders Makes Me Happy... Especially If I’M Less Intelligent: How Sunlight And Intelligence Affect Happiness In Modern Society, Satoshi Kanazawa, Norman P. Li, Jose C. Yong
Sunshine On My Shoulders Makes Me Happy... Especially If I’M Less Intelligent: How Sunlight And Intelligence Affect Happiness In Modern Society, Satoshi Kanazawa, Norman P. Li, Jose C. Yong
Research Collection School of Social Sciences
The savanna theory of happiness proposes that, due to evolutionary constraints on the human brain, situations and circumstances that would have increased our ancestors’ happiness may still increase our happiness today, and those that would have decreased their happiness then may still decrease ours today. It further proposes that, because general intelligence evolved to solve evolutionarily novel problems, this tendency may be stronger among less intelligent individuals. Because humans are a diurnal species that cannot see in the dark, darkness always represented danger to our ancestors and may still decrease our happiness today. Consistent with this prediction, the analysis of …