Percorrer por data de Publicação, começado por "2025-12-31"
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- Determinants of the effectiveness of quality assurance systems and institutional performance in higher educationPublication . Orlando Manuel Esteves Serrano; Francisco Javier Miranda González; Joaquim António Belchior MouratoThis study analyses the determinants of the effectiveness of Quality Assurance Systems (QAS) and its impact on institutional performance in Higher Education Institutions (HEIs). Based on stakeholder theory and the Resource-Based View (RBV), it investigates how management support, infrastructure quality and faculty and student engagement shape QAS effectiveness and, through it, institutional outcomes in teaching, research and societal impact. The research followed a quantitative design, covering all public and private HEIs in Portugal between December 2024 and February 2025. Using a non-probabilistic sample, an online questionnaire obtained 984 valid responses from academics, and Partial Least Squares Structural Equation Modelling (PLS-SEM) was applied to empirically test the hypothesised model and mediating effects. The results show that management support and institutional leadership are the strongest predictors of QAS effectiveness, while infrastructure quality and faculty engagement also make significant contributions. Student engagement, although statistically weaker, remains strategically relevant, reflecting institutional limitations in embedding student voices rather than disengagement itself. In summary, the study positions QAS effectiveness as a central mechanism that transforms organisational resources and stakeholder participation into institutional performance, while offering a consistent theoretical contribution and practical guidance for leaders and decision-makers committed to strengthening quality culture and competitiveness in higher education.
- Diaspora networks and export performance of small-scale agroprocessing firms in NigeriaPublication . Isichei, Ejikeme Emmanuel; Mohammed, Awwal Mohammed; Isichei,This study examines how diaspora networks influence the export performance of small-scale agro-processing firms in the Federal Capital Territory, Abuja, Nigeria. Drawing on social network theory and diaspora entrepreneurship theory, the study conceptualises diaspora networks through three dimensions: remitting behaviour, diaspora knowledge transfer, and diaspora trade facilitation. Primary data were collected through a structured questionnaire administered to owners and managers of small-scale agro-processing firms, and the hypothesised relationships were analysed using partial least squares structural equation modelling. The results indicate that remitting behaviour, diaspora knowledge transfer, and diaspora trade facilitation each exhibit positive and statistically significant relationships with export performance. The findings highlight the multidimensional role of diaspora communities as providers of financial capital, market-relevant knowledge, and cross-border trade support that can strengthen the international competitiveness of small firms. The study contributes to the diaspora networks and small firm internationalisation literature by providing firm-level evidence from an emerging economy context and by clarifying actionable pathways through which diaspora engagement can be leveraged to improve export outcomes. Policy and managerial implications are discussed, particularly regarding programmes that support productive remittance channelling, structured knowledge exchange platforms, and diaspora-enabled trade linkages.