ChatGPT, a large language model AI, has the potential to transform higher education by providing students with personalized learning support, assisting in writing tasks, and enhancing their level of engagement. This study examines the factors influencing the acceptance of ChatGPT among university students in Peru, following the extended UTAUT2 model with the addition of a construct called knowledge sharing (KS). A total of 772 students from seven universities in Lambayeque and La Libertad participated in an online survey, providing insights into their perceptions and experiences with using ChatGPT for academic purposes. The results from the structural equation model showed that effort expectancy, behavioral intention, and knowledge sharing positively influenced the actual use of ChatGPT. Furthermore, effort expectancy and performance expectancy were found to be determinants of the behavioral intention to use ChatGPT. The study also revealed that performance expectancy and behavioral intention serve as sequential mediating variables regarding the effect of effort expectancy on actual use. These findings suggest a positive adoption of ChatGPT among students, driven by individual and contextual factors, and highlight the importance of managing effort and performance expectations appropriately. This study represents a significant advancement in understanding the acceptance of ChatGPT in higher education and provides valuable guidance for practical implementation efforts, ensuring that this powerful AI tool is effectively leveraged to support student learning and success.

The transition toward a circular water economy addresses accelerating water scarcity and pollution. A PRISMA-2020 systematic review of 50 peer-reviewed articles (January 2018–April 2024) mapped current technologies and management strategies, seeking patterns, barriers, and critical bottlenecks. Bibliometric analysis revealed the following three dominant patterns: (i) rapid diffusion of membrane bioreactors, constructed wetlands, and advanced oxidation processes; (ii) research geographically concentrated in Asia and the European Union; (iii) industry’s marked preference for by-product valorization. Key barriers—high energy costs, fragmented regulatory frameworks, and low social acceptance—converge as critical constraints during scale-up. The following three practical action lines emerge: (1) adopt progressive tariffs and targeted tax credits that internalize environmental externalities; (2) harmonize water-reuse regulations with comparable circularity metrics; (3) create multi-actor platforms that co-design projects, boosting local legitimacy. These findings provide policymakers and water-sector practitioners with a clear roadmap for accelerating Sustainable Development Goals 6, 9, and 12 through circular, inclusive, low-carbon water systems.

The study examines how Peru could maintain the sustainability of its blueberry exports through market diversification and competitiveness. Using a quantitative approach, the Herfindahl–Hirschman Index (HHI) and the Balassa Index were calculated. The results showed impressive growth in key markets such as the United States, where exports grew by an average of 115.03% annually, and robust growth in the Netherlands and the United Kingdom. Despite these increases, the study identified a high concentration in specific markets, particularly in the United States, where the HHI ranged from 2896 to 3828 throughout the evaluated period, indicating significant dependence. Regarding the RCA, the values showed that Peru has maintained a solid comparative advantage, especially towards the United States, where the values fluctuated between 0.09 and 0.55 throughout the study, indicating specialization and efficiency in the export of blueberries to this market. The conclusions highlight that, although Peru has achieved remarkable growth in its blueberry exports and has demonstrated competitive capabilities, it faces the challenge of effectively diversifying its export markets. Recommendations include expanding the exploration of new markets and improving logistic infrastructure and agricultural practices to foster environmental sustainability, as well as adapting marketing strategies to meet the demands of emerging markets and international regulations.

This systematic review synthesizes evidence on economic instruments that mobilize renewable-energy investment in emerging economies, analyzing 50 peer-reviewed studies published between 2015 and 2025 under PRISMA 2020. We advance an Institutional Capacity Integration Framework that ties instrument efficacy to regulatory, market, and coordination capabilities. Green bonds have mobilized roughly USD 500 billion yet work only where robust oversight and liquid markets exist, offering limited gains for decentralized access. Direct subsidies cut renewable electricity costs by 30–50% and connect 45 million people across varied contexts, but pose fiscal–sustainability risks. Carbon pricing schemes remain rare given their administrative complexity, while multilateral climate funds show moderate effectiveness (coefficients 0.3–0.8) dependent on national coordination strength. Bibliometric mapping with Bibliometrix reveals three fragmented paradigms—market efficiency, state intervention, and international cooperation—and highlights geographic gaps: sub-Saharan Africa represents just 16% of studies despite acute financing barriers. Sixty-eight percent of articles employ descriptive designs, constraining causal inference and reflecting tensions between SDG 7 (affordable energy) and SDG 13 (climate action). Our framework rejects one-size-fits-all prescriptions, recommending phased, context-aligned pathways that progressively build capacity. Policymakers should tailor instrument mixes to institutional realities, and researchers must prioritize causal methods and underrepresented regions through focused initiatives for equitable global progress.

This research assesses the competitiveness of Chilean cherry exports, with a specific focus on the Chinese market, identifying sectoral challenges and opportunities. Implementing quantitative, descriptive and non-experimental methodologies based on previous studies (Montes Ninaquispe et al., 2023), it utilizes the Herfindahl-Hirschman Index (HHI) for market diversification, the Trade Competitiveness Index (TC), and the Revealed Comparative Advantage Index (RCA) based on previous studies (Arbulú Ballesteros et al., 2024). The analysis reveals a significant concentration of exports to China, representing over 88 percent of Chile’s total cherry exports from 2018 to 2022, despite market volatility and a general trend of growth in both volume and value. The HHI indicates a high concentration risk due to dependency on the Chinese market, while the TC and RCA highlight a strong competitive and comparative advantage in this sector. The study concludes the need for market diversification to reduce dependency risks, suggesting the exploration of new markets like Thailand, South Korea, and Ecuador, alongside improvements in marketing strategies. Additionally, it recommends enhancing corporate innovation and operational efficiency via advanced production technologies and optimizing logistics and supply chain management to sustain the competitive advantage of Chilean cherry exports.

The study comprehensively examines the diversification of asparagus exports from Peru, concentrating its analysis on the strategic diversification of markets and companies as pivotal for fostering sustainable growth in the agricultural sector. Utilizing a descriptive and non-experimental quantitative methodology, the research analyzed export data spanning from 2018 to 2023. This analysis was performed using the Herfindahl-Hirschman index (HHI) (Arbulú Ballesteros et al., 2024), a tool designed to measure market concentration levels (Montes Ninaquispe, Pantaleón Santa María, Arbulú Ballesteros, et al., 2023). The findings reveal a significant ongoing dependence on the American market, highlighting it as the primary export destination. However, there is a noticeable trend towards greater diversification among export destinations and the companies involved in these processes. The study notes a progressive decline in market concentration, which suggests a shift towards a more competitive and diversified export environment. Conclusions drawn from the research underscore the critical need to develop strategies that not only diversify markets but also enhance overall competitiveness within the sector. Recommendations from the study stress the importance of tapping into emerging markets, creating value-added products, adopting advanced technologies, and supporting the inception of new businesses. Additionally, it advocates for the promotion of business development across various regions to mitigate risks and encourage more balanced and sustainable economic growth.