http://hdl.handle.net/10174/47 2026-08-22T22:49:10Z 2026-08-22T22:49:10Z Almeida, Dora Ferreira, Paulo Dionísio, Andreia Quintino, Derick Aslam, Faheem http://hdl.handle.net/10174/42491 2026-08-20T12:29:43Z 2026-08-03T23:00:00Z

Title: Quantifying Market Sentiment Influence on Systemic Connectedness: A Quantile-Based Analysis Across Asset Classes Authors: Almeida, Dora; Ferreira, Paulo; Dionísio, Andreia; Quintino, Derick; Aslam, Faheem Abstract: Financial markets are becoming more interconnected, leading to a better under- standing of how shocks can spread across different markets. Investor sentiment is crucial in market dynamics, especially during high volatility. However, traditional mean-based connectedness measures fail to capture asymmetric dependence and tail-risk dynamics and are therefore less suitable under extreme market conditions, such as crises or periods of heightened uncertainty. Against this backdrop, this study employs a quantile connectedness approach to analyze the transmission of shocks among ten financial indices, including a crypto assets-related index and an eco- nomic-news-related sentiment index. The results show significant changes in shock transmission patterns, with the Daily News Sentiment Index (DNSI) being the pri- mary transmitter during bull markets, reinforcing the influence of news sentiment on investor behavior. Traditional indices like MSCI USA (MSCI_USA) and MSCI Europe (MSCI_EUR) are key transmitters in bear and normal market conditions, while MSCI China (MSCI_CN) and the Dow Jones Commodity Index (DJCI) are more sensitive to external shocks and act as net receivers. Furthermore, the dynamic analysis highlights the evolving role of sentiment-based indicators, particularly in extreme market regimes, supporting the role of sentiment-driven contagion effects and emphasizing their relevance for risk management. These findings highlight the importance of sentiment and traditional and emerging markets in risk management and portfolio diversification for investors and policymakers.

2026-08-03T23:00:00Z Borrega, Alexandre Rego, Conceição Rocha de Sousa, Miguel http://hdl.handle.net/10174/42414 2026-07-28T11:03:20Z 2026-06-30T23:00:00Z

Title: Unpacking regional development in the EU: The interplay of cohesion, institutions, and sustainability Authors: Borrega, Alexandre; Rego, Conceição; Rocha de Sousa, Miguel Abstract: This paper examines regional development in the European Union from a multidimensional and dynamic perspective, addressing the limited understanding of how economic, social, institutional, and environmental dimensions interact over time. While existing research often treats these dimensions separately or relies on static indicators, less attention has been paid to their temporal interdependencies and adjustment dynamics. Using a panel vector autoregressive model with common correlated effects (PVAR-CCE) applied to 233 NUTS-2 regions over the period 2000–2022, the analysis identifies the dynamic interactions linking these dimensions while accounting for cross-sectional dependence and regional heterogeneity. The results provide evidence of a structured system of interdependencies governing regional development. They reveal a dual adjustment structure characterised by a fast-moving economic–social cycle linking employment, income, and youth exclusion, and a slower structural dynamic driven by institutional quality, human capital, and environmental conditions. These dynamics vary across regions and income levels, highlighting persistent structural constraints in lagging regions and more integrated development trajectories in advanced regions. Environmental sustainability emerges as a constitutive component of regional development rather than a peripheral outcome, extending place-based approaches beyond income-based frameworks. Overall, the findings contribute to a more integrated understanding of regional development and provide an empirical basis for assessing the feasibility of EU policy objectives related to cohesion, sustainability, and balanced territorial development.

2026-06-30T23:00:00Z Gomes, Luís Pedro Ferreira, Paulo Almeida, Dora http://hdl.handle.net/10174/42291 2026-07-03T15:20:51Z 2026-04-30T23:00:00Z

Title: Integrating Resilience and Sustainability Paradigms in Vaccine Supply Chain Management: A Multi-Objective Simulation/Optimization Approach Authors: Gomes, Luís Pedro; Ferreira, Paulo; Almeida, Dora Editors: Galdames, I.S.; Vázquez-Justo, E.; Abreu, A.; Carvalho, J.V. Abstract: Vaccination is crucial for human health, and the success of vaccination programs depends not only on the vaccines themselves but also on the strength of the supporting supply chain and logistical systems. The World Health Organization emphasizes the importance of sustainability and resilience in vaccine supply chains, as outlined in the Immunization Agenda 2030. This paper aims to illustrate how multi-objective simulation/optimization can assist decision-makers in integrating sustainability and resilience concepts in vaccine supply chain management, based on the Paradox Theory. The technique was applied to the operational management of a vaccination point in the Central Alentejo region, resulting in nine non- dominated solutions. This approach enables decision-makers to make data-based decisions and gain insights into the potential outcomes before finalizing their choices. Our find ings demonstrate that multi-objective simulation/optimization provides valuable insights, allowing decision-makers to consider a more comprehensive “both-and” approach instead of singular choices.

2026-04-30T23:00:00Z Torres, Pedro Augusto, Mário Quaresma, Rui http://hdl.handle.net/10174/42287 2026-07-03T15:19:45Z 2023-07-12T23:00:00Z

Title: The influence of institutional and in-group collectivism practices on next-generation engagement in the family business Authors: Torres, Pedro; Augusto, Mário; Quaresma, Rui Abstract: Purpose This research aims to investigate the influence of country culture on the next generation's intention to become managerial leaders of the family business, focussing on institutional and in-group collectivism practices. The authors investigate not only the direct effect of these collectivism practices on next-generation engagement, but also the extent to which institutional and/or in-group collectivism moderate the relationship between parental support and next-generation engagement and the extent to which institutional and/or in-group collectivism moderate the relationship between self-efficacy and next-generation engagement. Design/methodology/approach Using cross-national data from the Global University Entrepreneurial Spirit Students' Survey (GUESSS) and the Global Leadership and Organisational Behaviour Effectiveness (GLOBE), hierarchical linear modelling (HLM) is employed to test the hypotheses using a sample of 33,390 observations collected in 20 countries. Findings The main findings show that both institutional and in-group collectivism practices may increase next-generation engagement levels. Furthermore, these cultural practices can amplify the relationship between family business self-efficacy and next-generation engagement. However, institutional collectivism can slightly reduce the positive effect of parental support on family offspring's intention to become leaders of the family business. The results also reveal that parental support has a stronger direct effect on next-generation engagement than family business self-efficacy. Originality/value This study examines the influence of cultural practices on next-generation engagement, focussing on collectivism practices. The study distinguishes between institutional collectivism and in-group collectivism. Unlike past research, a direct effect of parental support on next-generation engagement is considered. The study also uses a particular type of self-efficacy: family business self-efficacy. In addition, a multi-level method is employed, which is rarely used in this context.

2023-07-12T23:00:00Z