Search Results (1,705)

Information and Communication Technology (ICT) such as smartphones has been attracting attention to prevent elderly people from becoming isolated. For this reason, recent research has proposed training methods for acquiring smartphone functions. However, since the types of smartphone functions required vary from person to person, a one-size-fits-all approach fails to engage all individuals adequately, leading to limited outcomes. On the other hand, with a view to social implementation, it is necessary to clarify a method that is effective in both cost and time. Previous research suggests that self-efficacy and social capital are the keys to acquiring smartphone skills among elderly people. Therefore, in this review, while looking back at previous research, we propose a study to demonstrate that by providing careful individual instruction by an experienced instructor to elderly people with little experience in smartphones and then having them take turns teaching other participants after the instruction, their self-efficacy and social capital can be increased, and a positive spiral effect can be achieved to maximize the improvement of smartphone skills widely. Full article

This study investigates the relationship between economic policy uncertainty (EPU) and the cost of equity capital (CoEC). It also reveals the moderating role of managerial ability (MA) in the relationship between EPU and CoEC in Saudi Arabia. The study sample consists of listed non-financial firms in Tadawul from 2008 to 2019. We analyzed data using STATA, depending on Pearson correlation analysis, two independent sample t-tests, OLS regression, and OLS with robust standard errors clustered by firm. Our study shows a positive effect of EPU on the CoEC. In addition, the results confirm that MA mitigates the positive effect of EPU on the CoEC. This is the first research to investigate the influence of the relationship between EPU on CoEC in Saudi Arabia, one of the largest emerging economies in the Middle East and Gulf countries. Our findings motivate decision-makers to strengthen their MA and establish a safe and stable investment environment to ensure better financing and investment decisions during uncertain times. Lending agencies, investors, and other stakeholders should consider the MA of corporations when making investment decisions. Full article

One new factor driving the banking industry towards long-term, high-quality growth is digital marketing, which has arisen within the framework of the digital economy. The purpose of this research is to examine the effect of digital marketing on the financial results of MENA banks from 2010 to 2023. The research examines the impact of digital marketing techniques on the effectiveness of financial institutions through Tobit regression analysis, taking into account and controlling for sustainable practices (ESG), bank-specific characteristics (capital adequacy, bank size, liquidity, and cost efficiency), and macroeconomic variables (GDP and inflation). This empirical paper managed to collect the data for eleven countries in the MENA from the Refinitiv Eikon platform, world bank database, and the annual reports of relevant banks in the different stock markets. The final sample included 78 banks out of 120 listed banks. The results show that there is a clear association between the presence of digital marketing campaigns and improved profitability and market share growth for banks. Aligning digital initiatives with ESG principles is crucial for long-term value development, and sustainable practices increase these beneficial benefits even more. The research also shows that macroeconomic factors and bank-specific characteristics affect how effective digital marketing campaigns are. The significance of digital transformation and ESG integration in promoting competitive advantages and long-term growth in the MENA banking sector is highlighted by these findings, which have important implications for policy, investors, and bank executives. Full article

Studies have argued that water risk affects corporate sustainability, but few of them have fully explored whether or not and how water resources have a direct impact on corporate finance and strategy. This study takes the listed companies in the Chinese A-share market from 2019 to 2023 as a sample to understand the threat of water vulnerability to corporate sustainability from the perspective of capital cost. This study argues that water vulnerability positively relates to corporate capital cost by increasing corporate financing constraints. Meanwhile, this study also examines the role of water regulation and water investment in the relationship between water vulnerability and corporate capital cost. Water regulation brings legitimate pressure to corporations and increases the transformation risks faced by them, so it has a positive moderating effect. Water investment can alleviate the vulnerability of local water resources and reduce the physical water risk faced by corporations, so it has a negative moderating effect. The study finds that the two measures mainly play a significant moderating effect on the cost of debt. In addition, the study finds that the positive relationship between water vulnerability and capital cost has industrial and firm-level heterogeneity, while the moderating effect of government water governance has only industrial heterogeneity. Full article

Renewable hydrogen obtained from renewable energy sources, especially when produced through water electrolysis, is gaining attention as a promising energy vector to deal with the challenges of climate change and the intermittent nature of renewable energy sources. In this context, this work analyzes a pilot plant that uses this technology, installed in the Itumbiara Hydropower Plant located between the states of Goiás and Minas Gerais, Brazil, from technical and economic perspectives. The plant utilizes an alkaline electrolyzer synergistically powered by solar photovoltaic and hydro sources. Cost data for 2019, when the equipment was purchased, and 2020–2023, when the plant began continuous operation, are considered. The economic analysis includes annualized capital, maintenance, and variable costs, which determines the levelized cost of hydrogen (LCOH). The results obtained for the pilot plant’s LCOH were USD 13.00 per kilogram of H₂, with an efficiency loss of 2.65% for the two-year period. Sensitivity analysis identified the capacity factor (CF) as the main determinant of the LCOH. Even though the analysis specifically applies to the Itumbiara Hydropower Plant, the CF can be extrapolated to larger plants as it directly influences hydrogen production regardless of plant size or capacity. Full article

Research on modern agri-food chains aims to enhance flexibility by analyzing supply chain aspects to identify improvement opportunities. A SWOT analysis of 39 agri-food sector organizations using a SWOT analysis organized using the PESTEL and MEETHS categories was conducted to evaluate the stakeholders’ needs in this sector of activity in Northern Portugal. Logistic regressions were used to compute inferential statistics, which were complemented with a qualitative analysis. Cooperatives and primary sector companies often claim superior product quality without clear evidence, while corporations integrated into competitive national markets, like those with smoked products, adapt better to dietary trends. Small- and medium-sized enterprises struggle with competitive wages, leading to high turnover and difficulty retaining skilled workers. High costs hinder many organizations, particularly cooperatives, from adopting modern communication technologies affecting competitiveness. Challenges include identifying market opportunities and managing global competition for raw materials, like wild fish. Fishing and meat sectors depend heavily on modern distribution and are dominated by large retailers. Low labor costs boost competitiveness but reflect the struggle to add value. Larger organizations are more optimistic though many face challenges with the cost and volatility of key products, like pork and milk. This study offers the following key recommendations: invest in technology and innovation while balancing short-term gains with long-term sustainability; strengthen strategic planning and collaboration among corporations, cooperatives, associations, and academic institutions; and adapt to regulatory changes, invest in market and technological capabilities, and address resource limitations. Research and collaboration with policymakers and academic institutions will support tailored solutions, enabling the sector to anticipate challenges and capitalize on opportunities. Full article

In recent years, the registration-based IPO system has been gradually introduced and promoted in China’s capital market, and its implementation effect has attracted considerable attention. This paper focuses on companies that were first listed between 2019 and 2021. We empirically investigate the impact of the registration system reform on enterprise innovation using the staggered difference-in-differences model, with R&D investment as the measure of enterprise innovation. The findings demonstrate that, in comparison to companies listed via the approval system, those listed via the registration system exhibit a higher level of R&D investment in the three years following listing. This suggests that the reform of the registration system effectively stimulates an increase in R&D investment among IPO companies. Furthermore, the reform of the registration system has been found to significantly promote the R&D investment of IPO companies on the STAR Market (i.e., the Science and Technology Innovation Board), while having no significant impact on the R&D investment of IPO companies on the ChiNext Market (i.e., the Growth Enterprise Board). Further analysis indicates that the registration system reform encourages IPO firms to increase R&D investment by reducing agency costs, alleviating financing constraints, and accumulating human capital. This study elucidates the impact of registration system reform on enterprise innovation and its mechanism and provides novel empirical evidence for the evaluation of the effect of registration system reform pilot. Full article

Based on the urban panel data of Beijing-Tianjin-Hebei from 2009 to 2021, this article constructs an indicator system for the development level of the digital economy and regional integration, evaluates the impact of the digital economy on the integration development levels of different types of cities. The study found that (1) The digital economy significantly promotes the integration level of Beijing, Tianjin, and Hebei. The study divides Beijing-Tianjin-Hebei into two categories: large cities and small and medium-sized cities. Large cities and small and medium-sized cities have different effects on the relationship between the digital economy and integration level. (2) From the analysis of different dimensions of the digital economy, digital network infrastructure improvements, industrial digitization, and digital society can all promote regional integration. However, different digital economy contents have different promotional effects on different types of cities. (3) From the results of the mechanism analysis, it can be seen that the optimization of the allocation of human and capital elements, the increase in patent innovation, and the reduction of transaction costs will help enhance the driving force of the digital economy for regional integration. Among them, innovative development significantly impacts large cities’ integration levels. The promotion effect is more significant, and small and medium-sized cities are mainly affected by reduced transaction costs and the optimized allocation of capital factors. This study further expands the impact mechanism of the digital economy on the level of regional integration development. It provides a more in-depth analysis of the use of the digital economy to achieve coordinated regional development in regions with excessive economic and technological differences through heterogeneity research. Full article

This paper examines the impact of ten microeconomic factors on hotel business success. This research encompassed a sample of 115 small, family-operated hotels situated in rural regions of the Western Balkan countries (WBC). This research was based on the assumption that factors such as the size of the hotel, age, solvency, liquidity, labour productivity, capital productivity, CSR, and reduction of CO₂ emissions exhibit a positive influence on business success, whereas leverage, indebtedness, and energy consumption have a negative effect on the business success of hotels. The findings revealed that business success from the previous period, size, liquidity, and CSR exhibit a positive influence on business success, whereas leverage, capital productivity, and indebtedness demonstrate a negative effect. Conversely, the age of the hotel and labour productivity were not found to significantly influence business success, as did energy consumption. In the context of sustainable development, a positive CSR impact means that tourists value this behaviour of the hotel, while a lack of a statistically significant impact of energy consumption implies either that hotels do not implement efficient measures of energy efficiency or that energy efficiency may not be a crucial factor in attracting guests or influencing their loyalty. The findings also show that labour productivity expressed conventionally does not have a statistically significant impact on hotel business success. However, when expressed in a way that respects the concept of sustainable development and CSR, workforce productivity is a significant factor in hotel business success. Due to the problem of multicollinearity, the influence of CO₂ emissions was not examined. The findings suggest the following two groups of key measures: 1. Policymakers must work on ensuring more favourable conditions under which hotels can borrow, as well as on ensuring adequate infrastructure; 2. They must work on improving the strategy for maintaining liquidity to avoid the high costs of short-term loans and increasing size in order to further utilise economies of scale. These two microeconomic factors have the greatest impact on the business success of hotels. Full article

The investment estimation of the helium extraction project from natural gas is a crucial step in economically obtaining helium from both domestic and international projects. This article employs Aspen HYSYS to simulate the process and estimate the investment levels of Linde and Exxon Mobil integrated helium extraction processes. We investigate the influence of feed composition and processing capacity on investment costs and product returns. The results indicate that higher helium content of feed correlates with increased equipment investment costs and total capital cost (CAPEX), and that the Linde integrated process is significantly more sensitive to changes in helium content of feed than the Exxon Mobil integrated process. As the helium content of feed rises, the product returns of the two processes are evidently improved, leading to reduced investment payback periods. Both techniques exhibit favorable payback periods when the feed helium content exceeds 0.5 vol%. Nevertheless, elevated nitrogen content in the feed notably escalates the equipment investment costs and total capital costs. Furthermore, an increase in the processing capacity of feed gas leads to a nonlinear increase in total capital costs and annual operating costs. However, the cost per unit of helium extraction diminishes with increasing capacity. In general, the Linde integrated process requires higher separation energy consumption in comparison with the Exxon Mobil integrated process at similar processing capacities. Moreover, the sensitivity analysis shows that helium breakeven price is strongly affected by the price of both LNG and feed gas. Full article

A small-scale (up to 5 kWe) biogas-solid oxide fuel cell (SOFC) energy system is an envisioned system, which can be used to meet both electrical and thermal energy demand of off-grid settlements. SOFC systems are reported to be more efficient than alternatives like internal combustion engines (ICE). In addition to energy recovery, implementation of biogas-SOFC systems can enhance sanitation among these settlements. However, the capital investment costs and the operation and maintenance costs of a biogas-SOFC energy system are currently higher than the existing alternatives. From previous works, H₂S removal by biochar was proposed as a potential local cost-effective alternative. This research demonstrates the techno-economic potential of locally produced biochars made from cow manure, jackfruit leaves, and jack fruit branches in rural Uganda for purifying the biogas prior to SOFC use. Results revealed that the use of biochar from cow manure and jack fruit leaves can reduce H₂S to below the desired 1 ppm and substitute alternative biogas treatments like activated carbon. These experimental results were then translated to demonstrate how this biochar would improve the economic feasibility for the implementation of biogas-SOFC systems. It is likely that the operation and maintenance cost of a biogas-SOFC energy system can in the long run be reduced by over 80%. Also, the use of internal reforming as opposed to external reforming can greatly reduce the system capital cost by over 25% and hence further increase the chances of system economic feasibility. By applying the proposed cost reduction strategies coupled with subsidies such as tax reduction or exemption, the biogas-SOFC energy system could become economically competitive with the already existing technologies for off-grid electricity generation, like solar photovoltaic systems. Full article

The Combined Cooling, Heat, and Power (CCHP) System is an efficient technology that reduces primary energy consumption and carbon dioxide emissions by generating heat, cold, and electricity simultaneously from the same fuel source. This study developed an economic optimization model using linear mathematical program theory to determine the optimal sizes of different components in a CCHP system. The study found that CCHP systems with internal combustion engines have the largest optimal size due to lower capital expenditure and improved hourly changes in combined energy production by considering electrical and absorption chillers simultaneously. The analysis compared the size determination of CCHP systems with internal combustion engine (ICE), sterling engine (SE), and proton exchange membrane fuel cell (PEMFC) technologies. PEMFC had the highest annual overall cost among the technologies studied. The results of determining the size of the CCHP system are compared with ICE, SE, and PEMFC technologies. It has been noted that PEMFC has the highest annual overall cost among the studied technologies. The usefulness index of the CCHP system increased from 23% to almost 40% when electricity was sold to the grid using internal combustion engine technology. Full article

In recent years, investing based on ESG performance has become a mainstream investment strategy in the market. In this context, this study selected A-share listed companies from 2010 to 2022 as samples and adopted a panel fixed-effect model to empirically test the impact and mechanism of ESG performance on continuous innovation. The research showed that ESG performance could significantly promote corporate continuous innovation. The mechanism tests found it worked mainly through the channels of alleviating financing constraints, increasing social trust, reducing agency costs, focusing on human capital, and enhancing social capital. Heterogeneity tests found that this effect was more significant for state-owned enterprises, weak marketization, and epidemic shocks. Further research showed that ESG exhibited a more significant level of sustained innovation in the growth and maturity stages. And ESG performance had a significant contribution to corporate innovation resilience. The conclusions of this study enrich the research in the field of ESG performance and corporate continuous innovation and provide empirical evidence for strengthening sustainable development strategies. Full article

This case study originates as a design experiment for a sustainable housing system built on-site. The context is Niamey, the capital of Niger. The study takes into account the environmental issues in the construction sector and aims to find a solution capable of meeting housing, environmental, and economic needs. In the field of earthen construction, the most important developments have been achieved in manufacturing methods. In particular, the use of an additive digital manufacturing system, such as large-scale 3D printing, allows the construction of complex shapes derived from structural and thermal studies, maintaining a high degree of automation in the construction process, reducing construction times and labor costs. This paper investigates the possibility of responding to housing and environmental needs with a settlement system made almost entirely of printed earth, maintaining the highest possible degree of automation. Starting from a study on the state of the art of 3D printing in architecture and printable earthen compounds, the design choices of similar cases are analyzed to understand the construction techniques, potentials, and limitations of the medium. Finally, a design proposal is developed based on the definition of a fully printable functional module, which, upon aggregation, determines the characteristics of the final settlement. This implies a radical change of approach compared to previous prototyping of 3D-printed earthen buildings, as the design of the single functional module is not an exercise that finds completion in itself, but is oriented to the scale of the settlement right from the definition of its basic geometric characteristics. In other words, the settlement is no longer the result of the serial aggregation of independent basic units, but arises spontaneously from the juxtaposition of functional modules designed to interact with each other and merge into a single residential complex. The settlement is, therefore, the large-scale replication of the alternation between full and empty spaces that characterizes the single functional module and, even more importantly, the replication can take multiple forms. In fact, the full and empty spaces of the functional module are planned to allow multiple combinations of aggregation. This introduces a certain degree of customization into the growth dynamics of the settlement, a factor that is entirely new compared to previous proposals by repeatable modules. No less important are the environmental implications, as designing for the scale of the settlement allows the low carbon footprint typical of earth-based construction to be extended from the single building to the entire settlement. Full article

Wastewater reuse is a proven strategy to mitigate water stress in drought-prone regions. However, this practice is still limited due to high implementation costs, regulatory hurdles, and limited public acceptance. In regions with low reclaim rates, a thorough evaluation of the potential for reuse is needed to support decision-making, focusing on opportunities that address both low-hanging fruit and high-leverage projects. This paper introduces a streamlined, data-centric methodology for assessing wastewater reuse potential, adaptable to various regional contexts. The methodology involves comprehensive data collection and processing to evaluate wastewater treatment plant (WWTP) capabilities and identify potential users, allowing the prioritisation of case studies based on demand alignment. Different treatment and distribution systems are analysed to match WWTP capabilities with user needs, considering volume, quality, and infrastructure requirements. Cost analysis incorporates capital expenditure (CAPEX), operational expenditure (OPEX) and unit costs using novel cost functions for treatment and distribution. Risk analysis adheres to WHO methodology to ensure safety and sustainability. A case study in the Lisbon and Oeste areas in Portugal validates this approach, revealing key insights into the potential and economic viability of water reuse. By comparing tariffs and costs associated with different reuse scenarios, this paper offers benchmarks for the economic feasibility of reuse projects. Full article