Research Papers - Dept of Information of Management
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Publication Open Access Alcohol Consumption and Stroke Mortality: Global Patterns, Risks and Public Health Implications(Springer, 2025-05-07) Kolonne, T; Mudalige, K; Dissanayaka, G; Rathnayake, K; Jayathilaka, R; Rajamanthri, L; Wickramaarachchi, CGlobally, stroke remains a leading cause of mortality and disability, while alcohol consumption continues to vary widely across regions, prompting concern over its health impacts. This study examines the association between different alcoholic beverages and stroke mortality, using secondary data from 1990 to 2020. Alcohol consumption and stroke death rates across 189 countries were categorized into five levels, from very high to very low, and averaged over two periods (1990–1999 and 2011–2020). Multiple Correspondence Analysis (MCA) was applied to assess relationships among four categorical variables. The findings indicate a significant association between very high alcohol consumption and increased stroke mortality, with eight countries showing elevated death rates. Conversely, moderate beer consumption was linked to reduced stroke mortality, suggesting nuanced effects based on beverage type and quantity. These insights offer a foundation for targeted public health policies and emphasize the need for further investigation into the mechanisms driving alcohol-related stroke risks.Publication Embargo Fueling the future: unveiling what drives gig worker motivation and engagement in Sri Lanka’s corporate landscape(Emerald Publishing, 2025-03-25) Perera, L; Jayasena, C; Hettiarachchi, N; Siriwardana, D; Wisenthige, K; Wickramaarachchi, CPurpose: The gig economy has rapidly grown due to economic trends supporting flexible work and digital platforms, leading to increased demand for corporate gig workers. Although numerous studies have explored various aspects of the gig economy, research on the motivational and engagement factors of gig workers remains relatively rare. This study aims to investigate the factors that influence corporate gig workers’ motivation and engagement in the geographical context of Sri Lanka. Specifically, job autonomy, remuneration, social connection and technology and investigated here. Design/methodology/approach: A quantitative study, employing a deductive research approach, was conducted with data gathered through a survey designed using a five-point Likert scale questionnaire. Respondents were conveniently selected from Sri Lankan corporate gig workers. A total of 397 responses were obtained through a snowball sampling technique. The collected data were analyzed using partial least squares structural equation modeling, providing a robust framework for evaluating the hypothesized relationships. Findings: The findings revealed that job autonomy, remuneration, social connection and technology significantly influence corporate gig worker motivation, whereas motivation significantly influences the engagement of corporate gig workers in Sri Lanka. Research limitations/implications: This study faced common limitations. Due to challenges in identifying the framework for the population, a snowball sampling technique was employed. One key limitation is the study’s narrow focus on motivation factors within the Sri Lankan context, which may affect the generalizability of the findings. Additionally, the geographic focus and uneven sample distribution could limit the broader applicability of the conclusions. Future research should adopt a cross-cultural approach to explore the influence of social commerce adoption, enhancing the generalizability of the results. Practical implications: A comprehensive understanding of the factors that influence the corporate gig worker motivation and engagement is provided, facilitating, the decision-makers to gain insight to enhance worker motivation and engagement by adapting strategies. This can lead to higher productivity and job satisfaction among gig workers. Originality/value: Examination of the motivational and engagement factors specific to corporate gig workers in Sri Lanka, a context that has received limited attention in previous research. Also, it contributes to the existing literature by providing a deeper understanding of the gig economy and gig work, particularly in a non-Western setting.Publication Embargo Economic growth, poverty and female employment on crime rates at global level(Springer Science and Business Media, 2025-12-29) Sivakumar, T; Raveendran, T; Jayathilaka, R; Wickramaarachchi, C; Jayasuriya,NThis study investigates the impact of female labour force participation, infant mortality rate, per capita gross domestic product, and urbanisation on crime rates globally and across different regions. Using panel regression techniques on secondary data collected from 106 countries over 34 years (1990-2023), the findings reveal that female labour force participation correlates positively with crime rates globally. The infant mortality rate is positively associated with crime in the European region. Conversely, per capita gross domestic product is negatively related to crime rates globally and in Asia, the Middle East and Europe. Urbanisation showed no significant association with crime rates globally or regionally. These insights may help government and law enforcement agencies formulate policies to reduce crime effectivelyPublication Open Access Global nexus of smoking prevalence, healthcare quality and respiratory cancer mortality: a cross-continental study(Springer Nature, 2025-10-06) Piumika, L; Silva, D; De Silva, R; Jayathilaka, R; Wickramaarachchi, C; Rajamanthri, LBackground Smoking causes Trachea, Bronchus, and Lung Cancer (TBLC) mortality, depicting a strong correlation,while the quality of healthcare access in countries considerably impacts health outcomes. This study evaluates the differential effect in the interplay between Smoking Prevalence (SP) and health care, employing the Healthcare Access and Quality (HAQ) index towards the TBLC mortality rates across diverse continents and globally. Methods The data covering a 30-year period for 204 countries globally was categorised based on the level of SP (Low, Moderate, High, Critical) and the quality of healthcare access (Poor, Limited, Adequate, Optimal). A two-way ANOVA was utilised to analyse the patterns and variations in TBLC mortality rates across these categories, exploring the interactions between SP and the HAQ Index. Results Distinct patterns were observed in each continent, highlighting the complex interactions between the HAQ Index and SP, which lead to varying health outcomes. The results indicate that regions with an optimal HAQ Index and low SP have lower TBLC death rates, whereas those with a poor HAQ Index and critical SP exhibit higher death rates. Conclusion The findings emphasise the need to address both smoking prevalence and healthcare facilities globally. By improving healthcare access and reducing smoking rates, governments can significantly lower TBLC mortality rates. This study underlines the importance of integrating public health policies that limit smoking prevalence with enhancements in healthcare systems to promote better health and well-being.Publication Open Access Investigating the Associations Between Alcohol Consumption and Prevalence of Anxiety Using Multiple Correspondence Analysis(Springer Nature, 2025-10-13) Kolonne, T; Mudalige, K; Dissanayaka, G; Rathnayake, K; Jayathilaka, R; Rajamanthri, L; Wickramaarachchi, CThe prevalence of a specific link between alcohol consumption and anxiety is the basis of this study. The primary aim is to identify how different types of alcohol link with different levels of anxiety disorder. This study is based on secondary data spanning two decades from 1990 to 1999 and 2010 to 2019. Before the primary analysis, the variables were categorised relative to their maximum and minimum values to identify countries with high anxiety prevalence. The MCA (multiple correspondence analysis) included four different types of alcohol and the prevalence of anxiety as variables. This methodology was utilised to determine the associations across 189 countries. The results reveal that anxiety rates are rising worldwide, with 17 countries identified to have prevalent high levels of anxiety. Most countries that exhibited a high prevalence of anxiety were based in the European region. The study emphasises a bi-directional association between anxiety and alcohol disorders, with diverse associations for various alcohol categories. Lower levels of consumption of alcoholic drinks with a high percentage of alcohol are associated with a greater incidence of anxiety, except beer, where consuming more beer is associated with a higher anxiety incidence. Similarly, a reciprocal relationship can be identified between these variables. The study emphasises that the consumption of alcohol can be detrimental to mental health and advises anxiety-prone individuals to exercise caution and restraint when imbibing.Publication Open Access Visualizing the nexuses: a 3D regression analysis of poverty, urbanization, and crime rates in Asia(Taylor and Francis, 2025-08-11) Gomez, L; Sivakumar, T; Raveendran, T; Jayathilaka, R; Wickramaarachchi, C; Ranagalage, MThe study examines the association of poverty and urbanization on crime rates within the Asian region. The endeavor utilized data from twenty-eight countries from 1990-2020 and employed multiple linear and stepwise regression. The top five countries from the Asian region were selected based on the highest average crime rates to provide a comprehensive analysis. Multiple regression was further visualized using a 3D scatter plot diagram with a regression plane. The research discovered a positive association between poverty (proxied by infant mortality rate) and crime rates in the Philippines and Thailand. All the top five countries have recorded a negative association between urbanization and crime rates in the Asian region. The findings provided insights into the country-specific impact of poverty and urbanization on crimes in the Asian region. By utilizing these insights, policymakers could better tackle crimes and control the unintended consequences of poverty prevalence and rapid urbanization.Publication Open Access Economic and trade determinants of carbon emissions in the American region(Elsevier, 2025-06) Methmini, D; Dharmapriya, N; Edirisinghe, S; Gunawardena, V; Jayathilaka, R; Wickramaarachchi, C; Dharmasena, TBalancing economic growth with sustainability has been a significant challenge over the past decades, largely due to the environmental damage caused by carbon emissions. This study investigates the relationship between energy consumption, gross domestic product (GDP), and trade openness and their impact on carbon emissions in 28 countries in the American region from 2000 to 2022. Using a multiple linear regression model for country-level analysis, the findings reveal diverse trends across the region. For instance, countries such as Antigua and Barbuda, Bolivia, Brazil, Chile, and Guatemala demonstrate a strong link between economic growth and increased carbon emissions. In contrast, developed nations such as the United States and Canada show signs of decoupling GDP growth from emissions, supporting the Environmental Kuznets Curve hypothesis, which suggests that higher income levels lead to reduced environmental degradation. The study highlights the importance of tailored, country-specific strategies to reduce emissions while promoting sustainable economic growth. A thorough understanding of the complex relationships between gross domestic product, energy consumption, trade openness, and carbon emissions will enable policymakers to devise strategies that balance ecological sustainability with socio-economic objectives.Publication Open Access Impact of global smoking prevalence on mortality: a study across income groups(Springer link, 2024-07-04) De Silva, R; Silva, D; Piumika, L; Abeysekera, I; Jayathilaka, R; Rajamanthri, L; Wickramaarachchi, CBackground Smoking significantly contributes to the mortality rates worldwide, particularly in non-communicable and preventable diseases such as cardiovascular ailments, respiratory conditions, stroke, and lung cancer. This study aims to analyse the impact of smoking on global deaths, and its association with mortality across the main income groups. Methods The comprehensive analysis spans 199 countries and territories from 1990 to 2019. The study categorises countries into four income groups: high income, upper middle income, lower middle income, and low income. Results The findings underscore the profound impact of global tobacco smoking on mortality. Notably, cardiovascular disease mortality is notably affected in both upper-middle-income and high-income groups. Chronic respiratory disease mortality rates show a significant impact across all income groups. Moreover, stroke-related mortality is observed in the lower-middle, upper-middle, and high-income groups. These results highlight the pervasive influence of smoking prevalence on global mortality, affecting individuals across various socioeconomic levels. Conclusion The study underscores the critical implications of smoking on mortality rates, particularly in high-income countries. It emphasises the urgency of targeted interventions in these regions to address the specific challenges posed by tobacco smoking on public health. Policy recommendations include implementing prohibitive measures extending to indoor public areas such as workplaces and public transportation services. Furthermore, allocating funds for research on tobacco and health, is imperative to ensure policymakers are consistently informed about emerging facts and trends in this complex domain.Publication Open Access Impact of economic growth, energy consumption, and trade openness on carbon emissions: evidence from the top 20 emitting nations(Taylor and Francis, 2024-07-08) Methmini, D; Dharmapriya, N; Gunawardena, V; Edirisinghe, S; Jayathilaka, R; Wickramaarachchi, CThe study focuses on the top 20 carbon emission-increasing nations across continents from 2000 to 2021 and the effects of gross domestic product, energy consumption, and trade openness on carbon emissions. The study uses a panel dataset and multiple linear regression analysis to pinpoint the significant factors influencing each nation’s carbon emissions. The findings indicate that China, Kazakhstan, Saudi Arabia, and South Korea in Asia; Algeria, Egypt, Morocco, and the Seychelles in Africa; Antigua and Barbuda, Bolivia, Chile, and Panama in America; Albania, Belarus, Lithuania, and Russia in Europe; and Fiji, Samoa, Tonga, and Vanuatu in Oceania have a highly significant impact on carbon emissions in their respective regions. Energy consumption significantly increases carbon emissions in all countries except Panama and Kazakhstan, where it only significantly impacts GDPrelated carbon emissions. These insights lay the groundwork for policymakers to prioritise sustainable development, reduce carbon emissions in their decision-making processes, and establish comprehensive strategies that reconcile ecological concerns with socioeconomic goals by understanding the intricate dynamics between gross domestic product, energy use, trade openness, and carbon emissions.Publication Open Access Impact of global smoking prevalence on mortality: a study across income groups(BMC Public Health volume, 2024-07-04) De Silva, R; Silva, D; Piumika, L; Abeysekera, I; Jayathilaka, R; Rajamanthri, L; Wickramaarachchi, CBackground Smoking significantly contributes to the mortality rates worldwide, particularly in non-communicable and preventable diseases such as cardiovascular ailments, respiratory conditions, stroke, and lung cancer. This study aims to analyse the impact of smoking on global deaths, and its association with mortality across the main income groups. Methods The comprehensive analysis spans 199 countries and territories from 1990 to 2019. The study categorises countries into four income groups: high income, upper middle income, lower middle income, and low income. Results The findings underscore the profound impact of global tobacco smoking on mortality. Notably, cardiovascular disease mortality is notably affected in both upper-middle-income and high-income groups. Chronic respiratory disease mortality rates show a significant impact across all income groups. Moreover, stroke-related mortality is observed in the lower-middle, upper-middle, and high-income groups. These results highlight the pervasive influence of smoking prevalence on global mortality, affecting individuals across various socioeconomic levels. Conclusion The study underscores the critical implications of smoking on mortality rates, particularly in high-income countries. It emphasises the urgency of targeted interventions in these regions to address the specific challenges posed by tobacco smoking on public health. Policy recommendations include implementing prohibitive measures extending to indoor public areas such as workplaces and public transportation services. Furthermore, allocating funds for research on tobacco and health, is imperative to ensure policymakers are consistently informed about emerging facts and trends in this complex domain.