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The history of online trading began in the 1960s with the emergence of electronic communication networks, which allowed the electronic execution of trades outside traditional exchanges. The internet revolution led to the development of online brokerage platforms such as E*Trade and Schwab, enabling non-institutional investors to participate in the digital trading revolution. These platforms have evolved to serve the retail investor market, eventually adapting to mobile-first and commission-free models, significantly lowering the barriers to entry for financial markets. Platforms like Robinhood and other fintech firms have rapidly gained market share by offering services and products previously unavailable, such as commission-free trades, mobile trading, and novel products such as fractional shares and cryptocurrency investing. This chapter provides an overview of the history of online trading. It also introduces several new developments in fintech and the online trading industry and discusses various controversies and future implications of new technologies.

This study aimed to address the underexplored domain of organisational vulnerability, with a specific focus on understanding how vulnerability is understood in organisations and the underlying pathways leading to vulnerability.

This study utilised a narrative literature review methodology, using Google Scholar as the primary source, to analyse the concepts of organisational vulnerability in the context of disaster risk studies. The review focused on relevant documents published between the years 2000 and 2022.

The analysis highlights the multifaceted nature of organisational vulnerability, which arises from both inherent weaknesses within the organisation and external risks that expose it to potential hazards. The inherent weaknesses are rooted in internal vulnerability pathways such as organisational culture, managerial ignorance, human resources, and communication weaknesses that compromise the organisation’s resilience. The external dimension of vulnerability is found in cascading vulnerability pathways, e.g. critical infrastructure, supply chains, and customer relationships.

As the frequency and severity of disasters continue to increase, organisations of all sizes face heightened vulnerability to unforeseen disruptions and potential destruction. Acknowledging and comprehending organisational vulnerability is a crucial initial step towards enhancing risk management effectiveness, fostering resilience, and promoting sustainable success in an interconnected global environment and an evolving disaster landscape.

Depressive symptoms are a risk factor for loneliness, while sources of perceived social support from family and friends are protective factors; however, the complex mechanisms behind these factors have not been examined among health-care employees in Portugal. The purpose of this study is to evaluate the indirect effect of perceived social support from family and friends on the association between depressive symptoms and loneliness.

Health-care employees (n = 279; 242 female and 37 male) from 12 health-care institutions in Portugal participated in this cross-sectional study. The SPSS program with PROCESS macro (Model 6) was used to test the hypothesis regarding the indirect effect analysis.

Bootstrap analysis found that family as a source of social support had an indirect effect in the relationship between depressive symptoms and loneliness. Similarly, depressive symptoms had a significant indirect effect on loneliness through the indirect role of social support from friends. Moreover, it was found that the relationship of family and friends as sources of social support mediated the association of the aforementioned variables.

The findings of this study underscore the important role of depressive symptoms on perceived social support from family and friends, leading to loneliness, which is a public health concern among health-care employees in Portugal.

The purpose of the study is to investigate the differences between generational groups (specifically Generations X, Y and Z) in terms of variables that influence organisational commitment and intention to stay within an organisation. The aim is to fill the research gap in understanding how different factors influence commitment and retention across different generations.

This study follows a quantitative approach based on cross-sectional survey data. The respondents were employees of Generations X, Y and Z. The data were analysed using partial least squares structural equation modelling and multigroup analysis.

The results of the study indicate several relationships between variables and organisational commitment/intention to stay. Person-organisation fit is positively related to organisational commitment, and work-life balance is positively related to both organisational commitment and intention to stay. The mediation of organisational commitment shows a positive relationship with person-organisation fit and work-life balance. In addition, there are positive relationships between organisational culture and both organisational commitment and intention to stay, as well as a positive relationship between person-organisation fit and intention to stay. Furthermore, all three Generations (X, Y and Z) show positive relationships between organisational commitment and intention to stay.

The implications of the study are twofold. First, it provides theoretical contributions by uncovering the relationships between various variables and organisational commitment/retention. Second, it provides practical implications for organisations by highlighting the importance of person-organisation fit, work-life balance and organisational culture in fostering commitment and retention among employees of different generations.

The originality and value of this study lies in its exploration of the differences between generational groups in terms of variables affecting organisational commitment and intention to stay. By addressing this research gap, the study contributes to the existing literature on organisational commitment and retention. The detailed presentation of theoretical contributions, practical implications, limitations and suggestions for future research enhances the overall value of the study.

Online education enables location-independent learning, potentially providing university students with more flexible study programs and reducing traffic-related CO₂ emissions. This paper aims to examine whether online education can contribute to university-related sustainable everyday mobility, with particular consideration given to aspects of social sustainability and potential rebound effects. Specifically, it explores sustainability dilemmas that arise from conflicting social and ecological effects.

Drawing on qualitative data from mobility diaries and extensive semistructured interviews (n = 26) collected at Osnabrück University of Applied Sciences in Germany, this study deploys thematic analysis and a typification approach to analyze and classify students’ daily practices related to studying, mobility and dwelling, which may be impacted by online education.

The study identifies six distinct student types with diverse practices in studying, mobility and dwelling. Comparisons between student types reveal stark differences regarding professional and social goals that students associate with their studies, influencing university-related mobility and residential choices. This leads to varying assessments of online education, with some students expecting benefits and others anticipating severe drawbacks.

The typology developed in this paper can assist Higher Education Institutions (HEIs) in comparable contexts in understanding the distinct needs and motivations of students, thereby proactively identifying sustainability dilemmas associated with online education. By leveraging these findings, HEIs can effectively balance diverse interests and contribute meaningfully to sustainability.

To the best of the authors’ knowledge, this study is among the first to systematically investigate conflicts and rebound effects of online education in the context of sustainable mobility within HEIs.

Explore the role of traditional cafés in Lisbon and botequins in Rio de Janeiro in the history and culture of their respective cities, based on an analysis of the comments published on TripAdvisor.

Using a mixed methodology, 7,430 evaluations were analyzed, of which 5,473 were for Portuguese cafés and 1,957 for Brazilian botequins. A content analysis and statistical treatment were carried out. A line-by-line analysis was also conducted to code the emotions reported in the customer reviews.

The analysis categorized the comments into Gastronomy, Nostalgia, History and Heritage, and Quality of Service. Nostalgia garnered the highest percentage of positive comments for both Portuguese cafés and Brazilian botequins. These results emphasize the importance attached to sentimental connections and historical narratives, particularly those associated with notable individuals who frequented these places. Furthermore, no statistically significant differences were identified according to the type of establishment, which suggests a consistent pattern between cafés and traditional botequins.

Draws attention to the importance of a collaborative partnership between restaurant owners and tourism authorities. This strategic alliance not only serves to raise the cultural profile of cities, but also generates substantial economic benefits. It also ensures the lasting legacy of these historic establishments, celebrating the past, enriching the present and safeguarding the future.

Studying the cafés of Lisbon and the botequins of Brazil is important not only for understanding the history and culture of these countries but also for analyzing issues related to socialization, identity, artistic expression and urban transformations.

This study relied on the affective events theory to test the mediating role of the ratio of emotions in the relationship between employees' perceived leadership effectiveness and their well-being at work.

A quantitative methodology was used, based on a deductive approach of a transversal nature. Data were collected from a convenience sample consisting of 255 working adults.

Structural equation modeling results demonstrated that perceived leadership effectiveness positively influenced well-being and the ratio of emotions, showing that when employees perceived their leader as effective, they tended to experience more positive emotions and less negative ones (as indicated by a positive ratio). Furthermore, the results supported the hypothesis that perceived leadership effectiveness influenced well-being through increases in the ratio of emotions.

The nature of the sample makes it impossible to generalize the results. Also, the fact that the questionnaires were self-reported may have biased the results because only the employees' perception of the variables under study was known.

This study highlights the fact that perceived leadership effectiveness can be seen as an affective event that triggers positive and negative emotional responses at work, which, in turn, will have an impact on employee well-being.

An effective leadership style has been shown to be pivotal in reducing the prevalence of negative emotions within a team. When leaders foster a welcoming work environment where team members enjoy their roles, it often results in heightened positive emotions and overall well-being.

This systematic literature review aims to identify the pattern of data mining (DM) research by looking at the levels and aspects of education.

This paper reviews 113 conference and research papers from well-known publishers of educational data mining (EDM) and learning analytics-related research using a recognized literature review in computer science by Carrera-Rivera et al. (2022a). Two major stages, planning and conducting the review, were used. The databases of Elsevier, Springer, IEEE, SAI, Hindawi, MDPI, Wiley, Emerald and Sage were searched to retrieve EDM papers from the period 2017 to 2023. The papers retrieved were then filtered based on the application of DM to the three educational levels – basic, pre-tertiary and tertiary education.

EDM is concentrated on higher education. Basic education is not given the needed attention in EDM. This does not enhance inclusivity and equity. Learner performance is given much attention. Resource availability and teaching and learning are not given the needed attention.

This review is limited to only EDM. Literature from the year 2017 to 2023 is covered. Other aspects of DM and other relevant literature published in EDM outside the research period are not considered.

As the current trend of EDM shows an increase in zeal, future research in EDM should concentrate on the lower levels of education to identify the challenges of basic education which serves as the core of education. This will enable addressing the challenges of education at an early stage and facilitate getting a quality education at all levels of education. Appropriate EDM techniques for mining the data at this level should be the focus of the research. Specifically, techniques that can cater for the variation in learner abilities and the appropriate identification of learner needs should be considered.

Content sequencing is necessary in facilitating an easy understanding of concepts. Curriculum design from basic to higher education dwells much on this. Identifying the challenge of learning at the early stages will facilitate efficient learning. At the basic level of learning, data on learning should be collected by educational institutions just as it is done at the tertiary level. This will enable EDM to accurately identify the challenges and appropriate solutions to educational problems. Resource availability is a catalyst for effective teaching and learning. The attributes of a learner will enable knowing the true nature of the learner to determine the prospects of the learner.

This research has not been published in any journal. The information presented is the original knowledge of the authors. However, a pre-print of the work is in Research Square.