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O "EEG Investiga" é um podcast da Escola de Economia, Gestão e Ciência Política da Universidade do Minho, dedicado à divulgação científica produzida na escola. Este programa explora investigações atuais, tendências e desafios, com foco na inovação e impacto social.
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Silva, R., Rodrigues, M., Oliveira, C., Bessa, R., & Franco, M. (2025). The power of digital accounting: A bibliometric literature review analysis. Journal of General Management. https://doi.org/10.1177/03063070251332038This article examines the evolution and impact of digital accounting through a bibliometric analysis and a systematic literature review. Digital accounting is defined as the use of digital technologies, software, and systems to automate accounting processes, improving efficiency, accuracy, and access to financial information. Using Web of Knowledge and Scopus databases, the study analyzes 86 articles with Bibliometrix (R) and the PRISMA method, revealing rapidly growing academic interest, especially after 2019, while highlighting the need for further empirical research.The literature is organized into three main clusters: (1) scientific mapping of digital accounting, focusing on information systems, fraud detection, and auditing; (2) digital records management, emphasizing efficiency gains alongside challenges related to data integrity, security, and long-term access; and (3) digital skills, stressing the importance of technical competencies in AI and Big Data, combined with soft skills. Overall, digital accounting enhances real-time decision-making and competitiveness but raises cybersecurity, interoperability, and organizational change challenges, reshaping accountants into strategic advisors.
Wittberg, E., Tavares, A. F., & Szmigiel-Rawska, K. (2025). Local politics and land take: Using remote sensing data to analyse land-use changes in Sweden. Journal of Environmental Management, 384. https://doi.org/10.1016/j.jenvman.2025.125387This study examines how local politics and employment structures shape land take in Sweden, using remote-sensing data from 2006 to 2018. Drawing on a political market framework, it conceptualizes local politicians as suppliers of land-use policies who balance pro-growth and pro-conservation interests. Sweden provides a distinctive context due to its stable, consensus-oriented democratic institutions. Empirically, mining emerges as the main driver of intensive land-use change, reflecting its economic importance and political salience, particularly in areas affecting Sami communities. Electoral support for the Green Party plays a key moderating role, significantly constraining land-intensive development in mining municipalities. Unlike findings for more polarized systems, greater political stability—measured by wider electoral victory margins—is associated with less intensive land take, consistent with coalition-based governance dampening extreme outcomes. Interestingly, left-wing coalitions are linked to higher land take, reflecting Social Democratic support for mining-led employment. The analysis also reveals path dependency and spatial spillovers. Overall, the findings highlight how consensus governance can balance economic and environmental pressures.
Amado, C. (2025). Outlier Robust Specification of Multiplicative Time-Varying Volatility Models. Computational Economics, 66(5), 4107–4135. https://doi.org/10.1007/s10614-024-10838-4This article proposes a robust specification procedure for time-varying multiplicative volatility models that is resilient to the presence of outliers. It addresses a key problem in financial time series, namely the difficulty of distinguishing smooth changes in unconditional variance from isolated extreme observations, which often generate spurious non-stationarity and inflated volatility persistence in standard GARCH models. The study builds on the MTV-GARCH framework, which decomposes volatility into a short-run stochastic GARCH component and a smoothly evolving deterministic component. To reduce the influence of additive outliers, the author introduces bounded M-estimators for the GARCH dynamics and develops a robust Lagrange Multiplier test for detecting variance changes. Monte Carlo simulations show that the proposed procedure substantially improves size and power relative to conventional tests under outlier contamination. Applications to daily commodity returns (corn and sugar) illustrate its practical relevance, revealing cases of false variance shifts under standard methods. The approach offers important implications for risk management and portfolio allocation.
Lopes, J. V., & Casais, B. (2025). Longitudinal perceptions of gamified loyalty programs (GLPs): a mix of slot machines and entertainment toys. Journal of Research in Interactive Marketing, 19(2), 268–286. https://doi.org/10.1108/JRIM-10-2023-0383This study examines users’ perceptions of gamified loyalty programs (GLPs) in mobile applications, focusing on Vodafone’s “Yorn Shake It” app. Using a longitudinal qualitative approach, the authors followed five Portuguese users over one month to understand how motivations evolve with repeated interaction. The findings show that initial engagement is largely driven by extrinsic motivation, such as winning physical prizes or bonus data, although some users are intrinsically motivated by fun and collecting elements. Over time, motivations shift: some users begin to value the playful mechanics and enjoyment of the game, while others become disengaged due to repetitive challenges or unattractive rewards, interacting in an automatic or indifferent manner. Rewards play a dual role, acting not only as extrinsic incentives but also as feedback that satisfies intrinsic needs for autonomy and competence. Sustained engagement depends on a balanced relationship between challenge and reward. Strong brand engagement emerges mainly when users value the hedonic experience, whereas reward-driven loyalty tends to be fragile and easily replaced by better offers.
Antonio, M., Paschoalotto, C., Lazzari, E. A., Rocha, R., Massuda, A., & Castro, M. C. (2025). Building a health system resilience framework: national, state, regional, and local perspectives. www.thelancet.comThis study proposes a Health System Resilience (HSR) framework specifically designed for the decentralized context of Brazil’s Unified Health System (SUS). Resilience is defined as the system’s ability to absorb, adapt, and transform its essential functions in order to preserve equity under acute shocks and chronic stressors. The framework was developed and validated through a three-phase qualitative process involving 48 national and international experts, resulting in nine dimensions, 18 subdimensions, and 65 indicators applicable at federal, state, regional, and municipal levels. A key contribution is the clear distinction between routine system performance and resilience capacity, emphasizing dynamic capabilities such as workforce adaptability, real-time monitoring, emergency regulation, and multilevel governance. The model is designed as a practical management tool, proposing a six-step implementation cycle that includes scoping, mapping, scoring, prioritization, planning, and continuous monitoring. Although tailored to the SUS, the framework’s logic is transferable to other decentralized health systems worldwide.
Cirulli, V., Marini, G., Marini, M. A., & Straume, O. R. (2025). Do hospital mergers reduce waiting times? Theory and evidence from the English NHS. Journal of Economic Behavior and Organization, 238. https://doi.org/10.1016/j.jebo.2025.107196The study examines both theoretically and empirically the impact of hospital mergers on waiting times in health care markets with regulated prices, using the English National Health Service (NHS) as a case study. The theoretical model adopts a spatial framework in which patients choose hospitals based on travel distance and waiting times, while hospitals maximize a weighted objective combining profits and patient welfare. The model predicts an ambiguous overall effect of mergers, as they internalize opposing competitive forces: altruistic competition, which may increase waiting times by attracting more patients, and profit-oriented competition, which may reduce waiting times by discouraging the treatment of unprofitable patients. Cost synergies can further lower waiting times when hospitals are sufficiently profit-oriented. Empirically, using 19 years of NHS panel data and a difference-in-differences approach, the study finds that mergers increase waiting times on average by 41%. However, effects are heterogeneous: mergers involving Foundation Trusts reduce waiting times substantially, while mergers among more altruistic hospitals increase them.
Jacob, D., Casais, B., & Azevedo, A. (2025). Storytelling in Sensual Products Marketing: A Content Analysis of Archetypes and Endorsers on Instagram. Journal of Creative Communications. https://doi.org/10.1177/09732586251334853This study analyzes how Brazilian sensual product brands use storytelling on Instagram to market taboo-related products. Through a content analysis of 22 posts from the five largest brands in the sector, the research examines the prevalence of storytelling archetypes and endorser typologies. The findings show that brands mainly rely on the caregiver, jester, and, to a lesser extent, the innocent archetypes. The caregiver archetype dominates by emphasizing guidance, safety, and product education, helping consumers overcome discomfort associated with taboos. The jester archetype uses humor and playfulness to reduce shame and normalize consumption. In contrast, traditionally dominant archetypes such as the hero are largely absent. Regarding endorsers, expert figures—such as sexologists and consultants—are most frequently used, highlighting the importance of credibility and trust. Celebrity and consumer endorsers appear less often. The study also reveals a strong predominance of female endorsers. Overall, the article shows how storytelling and credible female expertise help brands mitigate stigma and facilitate consumer acceptance of taboo products.
Jalali, C., Silva, P., & Costa, E. (2025). They (don’t) really care about us: youth representation in Portuguese political parties. European Political Science, 24(4), 862–877. https://doi.org/10.1057/s41304-025-00548-2This article examines the role of youth wings within Portuguese political parties and how young party elites perceive their capacity to enhance youth representation. Based on 58 semi-structured interviews with senior young members from parties with and without autonomous youth wings, the study shows that youth wings function as a double-edged sword. While they guarantee formal representation in party organs, they often result in the informal segregation and marginalization of young members. Substantive influence over policy and candidate selection depends largely on informal networks, negotiations, and proximity to party leaders rather than on statutory rights. Youth wings are consulted in candidate selection, but their real impact is limited, with young candidates frequently placed in non-eligible positions. Although most respondents joined parties driven by policy-seeking motivations, personal career ambitions grow over time. Finally, youth wings are seen as largely ineffective in mobilizing young people, due to limited resources and weak financial autonomy.
Agnello, L., Castro, V., & Sousa, R. M. (2025). Speculative-Grade sovereign rating Cycles: Sovereign debt Defaults, restructurings and resolution. Journal of International Financial Markets, Institutions and Money, 103. https://doi.org/10.1016/j.intfin.2025.102197The study examines how sovereign defaults, debt restructurings, and resolution strategies affect the duration of periods in which countries remain rated at speculative grade. Using a change-point Weibull duration model applied to a large panel of sovereign credit ratings from Fitch, Moody’s, and S&P, the analysis shows that certain policy choices significantly prolong low-rating spells. Governments that implement nominal debt relief during defaults, rely on multilateral-supported restructurings, or experience prolonged exclusion from international capital markets tend to remain trapped in speculative-grade status for longer periods. Although the probability of exiting speculative grade initially increases over time, this effect fades after a critical threshold of roughly 15 years. Beyond this point, macroeconomic and institutional fundamentals become decisive. Higher GDP growth, improved institutional quality, lower public debt, and stronger external balances shorten speculative episodes, while banking and debt crises lengthen them. Overall, the findings highlight the long-lasting reputational and economic consequences of sovereign debt distress.
Casais, B., & Cardoso, C. (2025). Cosmopolitan tourists in P2P accommodation: An exploratory study of online reviews on airbnb. Tourism and Hospitality Research, 25(3), 375–386. https://doi.org/10.1177/14673584231218105This article explores how cultural background shapes (or fails to shape) online reviews in peer-to-peer (P2P) accommodation, focusing on 775 Airbnb reviews from guests of 32 countries staying in two properties in Lisbon and Porto. Using Hofstede’s dimensions of Individualism–Collectivism and Masculinity–Femininity, the study compares review content across 12 culturally representative countries. The findings reveal a striking homogeneity: cultural values do not significantly influence what guests write about. Across all groups, Location, Amenities, and Host interaction were the most frequently mentioned aspects. Some stylistic differences emerged—individualistic guests tended to write longer, more detailed negative comments, while collectivist guests wrote shorter and more socially cautious reviews—but overall patterns remained similar. Likewise, masculine and feminine cultures showed no meaningful divergence in content. The authors argue that the dominance of cosmopolitan tourists in P2P accommodation helps explain this uniformity, as experienced global travelers adopt a shared “Airbnb reviewing culture” that overrides national cultural norms.
da Silva, F. B., & Duarte, P. A. B. (2025). Brazil and China’s Digital Silk Road: Opportunities, Risks, and Strategic Implications. Global Policy, 16(4), 655–668. https://doi.org/10.1111/1758-5899.70027This article examines Brazil’s engagement with China’s Digital Silk Road (DSR), arguing that it is best understood through the lens of Digitalpolitik, where digital infrastructures serve as instruments of geopolitical power. Using qualitative analysis, expert interviews, and an online survey, the study finds that the DSR strengthens Brazil’s digital ecosystem while simultaneously creating risks for its digital sovereignty.The DSR—an extension of China’s Belt and Road Initiative—focuses on advanced technology fields such as 5G, AI, big data, cloud computing, and smart-city systems. China’s digital footprint in Brazil is already substantial, including Huawei-led 5G networks, submarine cables, data centers, surveillance technologies, and deepening participation in e-commerce and fintech through firms like Alibaba and Tencent.Survey results show mixed perceptions: respondents largely view the DSR’s influence as positive, but many also identify security risks tied to dependence on Chinese digital infrastructure. The article concludes that Brazil’s growing integration into the DSR offers opportunities for digital modernization but increases vulnerability to foreign control of data, making it essential for Brazil to diversify partners and safeguard digital sovereignty.
Heath, T., Gallage, S., Chatzidakis, A., & Hutton, M. (2025). Dilemmas of Care (Re) Allocation: Care and Consumption in Pandemic Times. Journal of Business Ethics, 199(3), 507–527. https://doi.org/10.1007/s10551-024-05829-2This article examines how the COVID-19 pandemic reshaped everyday consumption through the lens of care ethics. Drawing on twenty-eight in-depth interviews, it shows that the crisis exposed human vulnerability and intensified pressures on unpaid care work, revealing and deepening existing social inequalities. The disruption of daily routines blurred boundaries between home, work, and social spaces, forcing consumers—often women—to reorganize provisioning within compressed spatiotemporal constraints. This highlighted gendered expectations of care but also encouraged broader solidarities toward neighbors and local communities.The study distinguishes between ethical dilemmas, where individuals prioritized caring for close dependents even when their actions conflicted with broader moral concerns, and ideological dilemmas, where participants questioned dominant norms such as anthropocentrism, individualism, and patriarchal care arrangements. Overall, the findings challenge narrow views of “ethical consumption,” arguing instead for a more expansive political theory of care that recognizes consumption decisions as central to social justice and everyday citizenship.
Silva, L., Freire, F., Azevedo, A., & Matos, R. (2025). Hiking tourism and rural development: The case of the Mondego Walkways, Portugal. PASOS Revista de Turismo y Patrimonio Cultural, 23(3), 831–841. https://doi.org/10.25145/j.pasos.2025.23.052The article examines how hiking tourism contributes to rural development through a case study of the Pasarelas do Mondego in Portugal’s Serra da Estrela region. The study combines a survey of 299 visitors with 16 interviews conducted with local residents and stakeholders. Visitors were mostly Portuguese, relatively young, and highly educated; about half did not stay overnight, and for many the walkways were the main reason for their trip.Findings indicate notable positive economic impacts, including increased tourist attractiveness, growth in local restaurants and accommodation, and new investments in rural lodging. Municipal data also show a rise in guest numbers and overnight stays after the walkway’s opening. However, several negative effects emerged, such as increased litter, higher prices, and growing dependence on tourism.Perceptions diverged regarding depopulation: visitors tended to believe the walkways could help counter rural decline, while residents largely disagreed, seeing demographic trends as irreversible. The study also highlights seasonal limitations for visiting and emphasizes the need for strategies that enhance benefits while mitigating adverse impacts.
Novais, A. F., & Tavares, A. F. (2025). Governance models and performance in municipal solid waste management: Evidence from local authorities. Journal of Environmental Management, 386. https://doi.org/10.1016/j.jenvman.2025.125829This article examines how different governance models used by Portuguese municipalities influence performance in municipal solid waste (MSW) management, focusing on selective collection and recycling. Using data from 278 mainland municipalities in 2020, the study identifies four key governance models: direct management, inter-municipal cooperation, municipal or inter-municipal corporations, and private contracting. Direct management dominates, used by 84% of municipalities. Governance choices are shaped mainly by financial autonomy, scale, population density, and institutional capacity. Larger or financially stronger municipalities tend to adopt corporate structures, while low-density areas prefer inter-municipal cooperation. Municipalities with greater administrative capacity favor direct management.Performance analysis shows that Portugal struggles to meet national recycling targets. Inter-municipal cooperation performs worst, largely due to rural dispersion and financial constraints. Direct management achieves comparatively better selective collection and recycling outcomes, while corporate models show no significant advantage. Financial autonomy strongly supports environmental performance. Overall, the study concludes that no governance model is inherently superior; effectiveness depends on local context and resource capacity.
Tavares, T. (2025). The role of international reserves in sovereign debt restructuring under fiscal adjustment. Journal of Economic Dynamics and Control, 174. https://doi.org/10.1016/j.jedc.2025.105080This article examines why highly indebted developing economies simultaneously hold large stocks of international reserves, despite the financial cost of doing so. The puzzle arises because reserves earn a low return while external debt carries a higher interest rate, making the coexistence of both positions seemingly inefficient. Nonetheless, many emerging economies maintain reserves exceeding 20% of GDP while holding external debt above 50% of GDP. The study argues that the benefits of reserves outweigh their costs through two main channels: insurance against sudden stops—allowing governments to smooth consumption and avoid default—and improved bargaining power in debt renegotiation, which raises recovery rates and reduces sovereign spreads. Empirical evidence shows that a 10-point increase in reserves relative to GDP reduces spreads by 48 basis points and decreases expected haircuts by 12–15 points. A sovereign default model calibrated to Mexico reproduces realistic reserve and debt levels, highlighting the roles of fiscal distortions and renegotiation. Overall, reserves function as a costly but valuable safety buffer that enhances creditworthiness.
Silva, J., & Abreu, F. (2025). Authenticity or opportunism: consumers’ perception of brand activism practices and the mediating role of consumer-brand identification. Journal of Brand Management. https://doi.org/10.1057/s41262-025-00417-9This article examines how consumers’ perceptions of authenticity shape their reactions to brand activism, emphasizing the mediating role of consumer–brand identification (CBI). Using an experimental design with a fictional fashion brand (n = 372), the study contrasts authentic versus inauthentic activism by manipulating reliability, commitment, congruence, and benevolence. Results show a strong asymmetry: while authentic activism generates positive consumer responses, inauthentic activism triggers much stronger negative reactions, including lower identification, reduced purchase intentions, weaker willingness to pay a premium, and less favorable word-of-mouth. Perceived authenticity significantly enhances CBI, which partially mediates its effects on purchase intention and word-of-mouth. However, CBI does not mediate willingness to pay a premium, suggesting that identification alone cannot offset price sensitivity. Managerially, the findings highlight that authentic, consistent, and transparently communicated activism is essential, whereas perceived opportunism can seriously damage brand trust. Overall, consumers reward authenticity but punish inauthenticity far more intensely.
Raimundo, A., Ferreira-Pereira, L. C., & Jokela, J. (2025). Small European states and Brexit: comparing the coping strategies of Portugal and Finland. International Politics, 62(3), 634–652. https://doi.org/10.1057/s41311-024-00608-2This article compares how Portugal and Finland, two small and peripheral yet core EU member states, strategically responded to Brexit. Both countries relied on EU sheltering—aligning with EU institutions and key member states—to mitigate external shocks. However, they also pursued hedging strategies in domains where Brexit created specific vulnerabilities. For Portugal, hedging was strongest in foreign and security policy, as it sought to counterbalance a potentially less Atlantic-oriented EU by strengthening bilateral ties with the UK and the transatlantic alliance beyond the EU framework. In contrast, Finland’s hedging was most visible in the political economy domain, where the loss of the UK as a liberal ally pushed Finland to form new coalitions, such as the New Hanseatic League, to safeguard economic interests. Ultimately, the study shows that coping strategies depend on each state’s exposure to Brexit, the institutional context of the policy area, and their commitment to EU integration.
Rocha, A. B., Figueiredo, H., Sá, C., & Portela, M. (2025). Mismatch matters: education and productivity in laggard and frontier firms. Journal of Productivity Analysis. https://doi.org/10.1007/s11123-025-00772-4This article examines the impact of educational mismatch—both overeducation and undereducation—on firm-level labor productivity in Portugal between 2010 and 2019, using matched employer-employee data. Results show that undereducation consistently harms productivity, while overeducation contributes positively but modestly. The productivity benefits of overeducation rise along the productivity distribution: from 0.7% at the bottom decile (P10) to 2.2% at the top 1% (P99), suggesting that frontier firms are better equipped to utilize excess qualifications. Conversely, undereducation exerts a negative and stable effect across all productivity levels. Frontier firms display higher education levels and less undereducation, whereas laggard firms suffer from rising mismatch rates over time. Fixed-effects estimates reveal that fully aligning workers’ education with job requirements could increase firm productivity by 1.4%, primarily through reducing undereducation (≈1%), while reassigning overeducated workers would add ≈0.4%. The findings emphasize that matching education to job needs is key to enhancing firm performance.
Ferreira, S., Pereira, O., & Simões, C. (2025). Determinants of consumers’ intention to visit green hotels: Combining psychological and contextual factors. Journal of Vacation Marketing, 31(3), 535–548. https://doi.org/10.1177/13567667231217755This article investigates consumers’ intention to visit green hotels by integrating psychological and contextual factors within an extended Theory of Planned Behavior (TPB) model that includes biospheric value and green trust. Based on a quantitative survey of Portuguese consumers, the study finds high intentions to visit green hotels. The results show that attitude, subjective norms, and perceived behavioral control significantly and positively affect behavioral intention, explaining 42.6% of its variance. Among these, attitude is the strongest predictor, followed by perceived control and biospheric value. While green trust does not directly influence intention, it indirectly affects it through positive impacts on the three TPB variables. Managerial implications highlight the need for hotel managers to strengthen positive attitudes via clear communication of green initiatives, enhance perceived control by reducing barriers such as cost or comfort concerns, and build credibility to avoid greenwashing, ensuring authentic and transparent sustainability efforts.
Camões, P., Ó. Erlingsson, G., & Tavares, A. (2025). Crowding in local lists: local branches of national parties and the supply and success of local lists. Comparative European Politics. https://doi.org/10.1057/s41295-025-00428-5This article examines whether the uneven presence of national party branches influences the emergence and success of local lists (genuinely local candidates) in Portuguese municipal elections between 2001 and 2021. Rooted in the “localist turn” observed in many democracies, the study argues that declining performance of national parties creates local political opportunities exploited by local lists — a crowding-in effect on the supply side. Using logistic and Poisson regressions, the results support two hypotheses: (1) local lists are more likely to emerge where national parties (PS and PSD) are electorally weaker, and (2) their vote shares rise as support for these parties declines. Moreover, higher voter turnout correlates positively with local list performance, suggesting their role in mobilizing dissatisfied citizens. However, the rise of the far-right CHEGA party in 2021 reduced local list votes, indicating competition for disillusioned voters. Overall, the study highlights local lists as substitutes and mobilizers within Portugal’s evolving party system.
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