Search Results (356)

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. Full article

This study investigates why firms with large book–tax differences (BTDs) exhibit lower earnings persistence, particularly during periods of revenue declines. While prior literature has linked BTDs, especially large positive BTDs (LPBTDs), to earnings management, we propose an alternative explanation rooted in operational disruptions. Using a large panel of U.S. firms from 1995 to 2016, we examine whether short-term earnings persistence is affected by sales trends and the direction of BTDs. Our findings reveal that both large positive and large negative BTDs are significantly associated with reduced earnings persistence when sales decline. The effect is pronounced in both accrual and cash flow components of earnings. We develop and test a framework based on “operations theory,” which attributes this reduction to real business shocks, such as asset write-downs, facility closures, and reserve adjustments, that arise during sales decline periods. These results highlight the importance of distinguishing operationally driven BTDs from those arising through discretionary accruals. Our findings have implications for investors, regulators, and researchers seeking to interpret BTDs more accurately in volatile economic environments. Full article

In China, the recycling system for waste tires is characterized by high output but low standardized recovery rates. This study examines the environmental and health risks caused by non-compliant treatment by individual recyclers and explores the barriers to the large-scale adoption of Pyrolysis Technology. A Tripartite Evolutionary Game Model involving pyrolysis plants, waste tire recyclers, and government regulators is developed. The model incorporates pollutants from pretreatment and pyrolysis processes into a unified metric—Carbon Dioxide Equivalent (CO₂-eq)—based on Global Warming Potential (GWP), and designs a Differential Carbon Taxation mechanism accordingly. The strategy dynamics and stability conditions for Evolutionary Stable Strategies (ESS) are analyzed. Multi-scenario numerical simulations explore how key parameter changes influence evolutionary trajectories and equilibrium outcomes. Six typical equilibrium states are identified, along with the critical conditions for achieving environmentally friendly results. Based on theoretical analysis and simulation results, targeted policy recommendations are proposed to promote standardized waste tire pyrolysis: (1) Establish a phased dynamic carbon tax with supporting subsidies; (2) Build a green market cultivation and price stabilization system; (3) Implement performance-based differential incentives; (4) Strengthen coordination between central environmental inspections and local carbon tax enforcement. Full article

The field of tourism economics has consistently attracted big attention from scholars across various countries. Tourism is inherently linked to economic aspects. Concurrently, Indonesia has relocated its Ibu Kota Negara/National Capital City, now named “IKN”, from Jakarta to East Kalimantan. In addition to extensive public infrastructure development, the Indonesian government is also working to revitalize the tourism sector in IKN. To assess the economic feasibility of this sector, an in-depth study is necessary. This research aims to examine labor absorption, tourist visits, and economic growth as indicators of successful tourism economic performance. It also analyzes the variables that influence these indicators, including (1) wages, (2) occupancy rates, (3) room rates, (4) food and beverage facilities, (5) inflation, (6) hotel and lodging taxes, (7) restaurant and eating-house taxes, and (8) investment. The regression testing method employs Ordinary Least Squares (OLS). According to the data analyzed from 2013 to 2024, the authors identified three main points: First, tourist visits and inflation have positive and significant impacts on labor absorption. Second, labor absorption, wages, occupancy rates, economic growth, and investment positively and significantly influence tourist visits. Third, tourist visits, room rates, food and beverage facilities, and inflation have positive and significant effects on economic growth. The implications of this research can be enlightening for regulators and future initiatives. This is particularly important for guiding further empirical investigations and policy planning aimed at accelerating economic development in the tourism sector. Full article

Recently, as carbon emission regulations enforced by the International Maritime Organization (IMO) have become stricter and pressure from the World Trade Organization (WTO) to abolish tax-free fuel subsidies has increased, the demand for electric propulsion systems in the marine sector has grown. Most small domestic fishing vessels rely on tax-free fuel and have limited cruising ranges and constant-speed operation, which makes them well-suited for electric propulsion. This paper proposes replacing the internal combustion engine system of such vessels with an electric propulsion system. Based on real operating conditions, an Interior Permanent Magnet Synchronous Motor (IPMSM) was designed and optimized. The Savitsky method was used to calculate total resistance at a typical cruising speed, from which the required torque and output were determined. To reduce torque ripple, an asymmetric dummy slot structure was proposed, with two dummy slots of different widths and depths placed in each stator slot. These dimensions, along with the magnet angle, were set as optimization parameters, and a metamodel-based optimal design was carried out. As a result, while meeting the design constraints, torque ripple decreased by 2.91% and the total harmonic distortion (THD) of the back-EMF was lowered by 1.32%. Full article

The enhancements of tax policies and their coordination have emerged as a significant way to promote corporate sustainability, especially in developing economies worldwide. Using panel data from Chinese non-financial A-share listed companies from 2009 to 2022, this study empirically explores the promoting effects of corporate income tax (CIT) incentives and environmental protection tax (EPT) levies on corporate ESG performance. We find that the CIT incentive has a notable positive impact on firms’ ESG behavior, acting on the micro-mechanisms of increasing corporate cash flow and reducing agency costs, and its promoting effect is more salient with regard to the social and governance dimensions. This study also traces the interactive effects between the EPT levy and CIT incentive policies, which boost corporate ESG behavior synergistically. Heterogeneity analyses reveal that these effects are more noticeable in manufacturing firms and non-state-owned firms with severe financing constraints. Environmental tests show that CIT incentive policies have positive effects on green technological innovation, and Chinese enterprises are still experiencing relatively serious negative impacts. The conclusions of this study are conducive to providing theoretical support and policy suggestions for encouraging the sustainable development of companies through the policy combination of environmental regulation and tax incentives. Full article

This study investigates the underexplored relationship between the shadow economy and environmental degradation and governance within the European Union, focusing on CO₂ and GHG emissions, and climate-related natural disasters, from 2012 to 2021. Employing both panel data econometrics and Elastic Net regularisation, the analysis reveals asymmetric effects: while a larger shadow economy is associated with lower reported GHG emissions, likely due to underreporting or less energy-intensive activities, it simultaneously increases vulnerability to climate-induced disasters. Furthermore, environmental taxes, although effective in mitigating emissions, show limited impact on disaster frequency, suggesting that fiscal instruments alone may be insufficient to foster climate resilience. Economic prosperity correlates with higher emissions and greater climate risk, highlighting a trade-off between growth and sustainability. The findings underscore the necessity of integrating informal economic activities into environmental governance frameworks, particularly in the context of the European Green Deal. Recognising and regulating the environmental footprint of the shadow economy is essential for achieving comprehensive and equitable climate goals. Future research should explore the role of institutional quality and fiscal transparency in moderating the environmental effects of informality. Overall, this study calls for a rethinking of climate policies to include both the formal and informal dimensions of economic activity. Full article

This paper examines the electoral cycle and the conduct of the central government’s fiscal policy. It uses a panel database with disaggregated spending and revenue series for 34 middle-income countries over 2000–2022. A dynamic panel approach was used to look at overall government spending and income, and their parts, to find budget patterns during election seasons. The analytical methodology employs the two-step system generalized method of moments to address endogeneity concerns. The dynamic effect captured by the first lag of budgetary indicators suggests that the widening of that indicator is persistent. There is evidence that the current government is opportunistic, which suggests that the electoral cycle affects fiscal performance, especially when it comes to spending on economic matters and taxes on income, profits, and capital gains. Policymakers should be more aware of the government’s opportunistic impact during the electoral period. To keep the budget stable, regulating corruption and having a democratic attitude might lessen the effects of the electoral cycle. Full article

The Hainan gibbon (Nomascus hainanus) is one of the most endangered primates globally, threatened by habitat destruction, genetic diversity loss, and ecological competition. In this study, given the critical role of the gut microbiota in host immune regulation and nutrient metabolism, we investigated the composition of and age-related variations in the gut microbiota in Hainan gibbons. Using 16S rRNA sequencing, we systematically investigated the gut microbial diversity of Hainan gibbons. We collected 41 fecal samples from Hainan Tropical Rainforest National Park, covering three age groups: juveniles (4–6 years), subadults (7–10 years), and elderly animals (≥13 years). This study found that microbiota composition changed significantly with age. Juveniles had higher microbial diversity and complexity, while subadults showed an increased abundance of Fibrobacter and Prevotella in their microbial communities, along with a Tax4Fun-predicted enrichment of functional genes related to energy metabolism, cell motility, and nervous system functions. LEfSe analysis identified statistically significant microbial taxa among different age groups, with Bacteroidota and Firmicutes being the dominant phyla across all groups with varying proportions. These results highlight the critical role of the gut microbiota in the health and adaptability of Hainan gibbons, offering insights for conservation strategies. The findings of this study are significant for understanding the changes in gut microbiota and their ecological functions across different life stages of endangered primates. Full article

The coronavirus (COVID-19) pandemic has profoundly affected public health and socio-economic structures globally. This research conducted a post-COVID-19 analysis of the role of fiscal support interventions on COVID-19 health regulations such as mandatory non-pharmaceutical interventions like face masks, social distancing, periodic lockdowns which include restrictions on movement, and socio-economic dimensions. This quantitative research obtained 302 responses from different households in the Eastern Cape, Gauteng, Kwa-Zulu Natal, and Limpopo Provinces in South Africa. The results reveal that the relief fund (R350 unemployment grant, unemployment insurance fund claim, and food parcel distribution, among others) mediated the relationship between COVID-19 health regulations and poverty levels and the relationship between COVID-19 health regulations and health and well-being. The relief fund also mediated the relationship between COVID-19 health regulations and employment levels. Support packages from the R500 billion government support, which included loan guarantees, job support, tax and payment deferrals and holidays, social grants, wage guarantees, health interventions, and municipalities support, moderate the relationship between COVID-19 health regulations and the family and social support. These results validate the impact of the fiscal support intervention by the government in mitigating its emergency intervention with COVID-19 health regulations. This strengthens the theory of intervention, highlighting that multiple dynamics make interventions complex as shown by mediation and moderation results. Furthermore, this study highlights intervention being central to the management of the crisis. The study highlights the importance of comprehensive intervention for future preparedness, thus advancing the crisis–intervention perspective. Advances in these areas are critical to mitigate the impact of the next pandemic or similar major events in society. This can be achieved through improved pandemic timely response with effective economic stimulus, social relief, strong legal framework, and anti-corruption policies. Full article

This paper examines the effect of board characteristics on tax avoidance and the moderating role of industry regulation on this effect. Using a comprehensive panel of 84,153 firm-year observations from 39 countries during the period of 2000–2023, we illustrate that larger boards, higher female representation, significant foreign ownership, and the presence of independent directors are generally associated with higher effective tax rates, suggesting lower levels of tax avoidance. This study further demonstrates that the effects of board gender diversity and board independence are more pronounced in regulated industries, where stringent governance and ethical standards prevail, emphasizing the importance of regulatory oversight in mitigating aggressive tax planning. These findings are crucial for policymakers, regulators, and corporate governance practitioners aiming to align corporate practices with ethical standards and reduce the risks associated with tax avoidance. Full article

This study investigates a green intermodal routing problem considering carbon tax regulation and a mixed (combined soft and hard) time window to improve cost- and time-effectiveness and promote carbon emission reduction in intermodal transportation. To enhance the feasibility of problem optimization, we model the uncertainty of both the carbon tax rate and the intermodal network capacity in the routing problem. By using interval fuzzy numbers to formulate the twofold uncertainty, an interval fuzzy linear optimization model is established to address the problem optimization, in which the optimization objective of the model is to minimize the total costs (consisting of transportation, time, and carbon emission costs). Furthermore, we conduct crisp processing of the proposed model to make the problem solvable, in which the optimization level, a parameter whose value is determined by the receiver before solving the problem, is introduced to represent the receiver’s attitude towards the reliability of transportation. We present a numerical experiment to verify the feasibility of the optimization model. The sensitivity analysis shows that the economics and environmental sustainability of the intermodal routing optimization conflict with its reliability. Improving the reliability of transportation increases both the total costs and the carbon emissions of the intermodal route. Furthermore, through comparison with deterministic modeling, the numerical experiment shows that modeling the twofold uncertainty can cover the different decision-making attitudes of the receiver, provide intermodal routes that are sensitive to the optimization level, enable flexible route decision-making, and avoid unreliable transportation. Through comparison with hard and soft time windows, the numerical experiment proves that the mixed time window is more applicable for problem optimization, since it can obtain the intermodal route that yields improved economics and environmental sustainability and simultaneously satisfies the receiver’s requirement for timeliness. Through comparison with the green intermodal route aiming at minimum carbon emissions, the numerical experiment indicates that carbon tax regulation under an interval fuzzy carbon tax rate is not feasible in all decision-making scenarios where the receivers have different attitudes regarding the reliability of transportation. When carbon tax regulation is infeasible, bi-objective optimization can provide Pareto solutions to balance the objectives of reduced costs and lowered carbon emissions. Finally, the numerical experiment reveals the influence of the release time of the transportation order at the origin and the stability of the interval fuzzy capacity on the routing optimization in the scenario in which the receiver prefers highly reliable transportation. Full article

Land mobility, particularly in the agricultural sector, is a critical factor for rural development and the maintenance of the supply chain. In the EU, the dominant form of agricultural land mobility is succession. This study examines the impact of formal and informal institutional factors on land mobility and the development of the agricultural sector in Greece, emphasizing their role in shaping succession and land mobility processes. This research introduces an innovative approach by analyzing both formal (legislation, EU policies, taxation) and informal (cultural ties, family traditions) institutional factors that influence land mobility. Within this framework, this study explores the attitudes, perceptions, and behaviors of farmers, acknowledging that the institutional environment—shaped by both official regulations and informal norms, often expressed by the family head—may influence younger family members to adopt similar behaviors and practices. It also highlights the impact of ineffective and underdeveloped formal and informal institutions, providing policymakers and young people seeking to engage in agriculture with a valuable guide. The methodology is based on qualitative research, using semi-structured interviews with 21 members of farming families to capture views, perceptions, and experiences related to land mobility. The findings highlight several major barriers, including fragmented land ownership, emotional attachment to inherited land, bureaucratic obstacles, and high tax burdens. At the same time, shifting attitudes among younger generations are evident, as they adopt a more entrepreneurial mindset in land management. The results point to an urgent need for institutional reforms, such as completing the land registry, simplifying land transfer procedures, and promoting land consolidation policies. Overall, this exploratory study underscores the need for increased research attention to the formal and informal institutional elements that influence rural economic and structural development through land mobility, providing important insights for policies aimed to enhance land mobility and ensure the sustainable development of the agricultural sector. Furthermore, it provides valuable input for understanding and addressing challenges such as family traditions, emotional attachments to inherited land, and land mobility. Full article

The construction sector plays a pivotal role in sustainability efforts, driving the need for innovative solutions like Building Information Modeling (BIM) to optimize green building design and performance. This study examines the diffusion of BIM functionalities that support sustainability, particularly in energy efficiency, water management, material selection, indoor environmental quality, and green building certification. Using the innovation diffusion theory, the research employs three mathematical models—internal, external, and mixed—to analyze the adoption patterns of BIM for green building applications. Empirical findings reveal that external factors, such as government regulations, financial incentives, and industry trends, significantly influence the diffusion of BIM functions related to environmental performance. The mixed diffusion model demonstrates the highest explanatory power, indicating that both external and internal drivers play a role, particularly in material selection and lifecycle assessment. This study highlights the growing integration of BIM in sustainable construction, reinforcing the need for regulatory support to accelerate adoption. These findings offer valuable insights for researchers, policymakers, and industry professionals, demonstrating how BIM can drive greener practices in the built environment. Policymakers should focus on developing policies and offering incentives such as feed-in tariffs, investment tax credits, and integrating Green BIM requirements into building codes to encourage sustainable construction practices. Also, curricula should be updated to include real-world projects and experiential learning to improve the adoption and efficiency of Green BIM practices. Future research should explore enhanced digital frameworks to further improve BIM’s impact on sustainability and lifecycle optimization. Full article

This study examined the impact of tax avoidance on firm value. Further, it investigated whether ESG disclosure moderates this relationship. This study examined the top 100 non-financial firms listed in the S&P/EGX ESG index over the period from 2018 to 2022. The sample contained 80 companies with 400 firm-year observations. Statistical analysis was conducted using pooled ordinary least squares (OLS) and fixed effects regression models. The statistical analysis revealed a negative and significant impact of tax avoidance on firm value. Further, ESG disclosure was found to have a negative moderating impact as it eliminated the negative impact of the effect of tax avoidance on firm value, leading to a positive overall effect. These results carry important implications for regulators, investors, and shareholders in Egypt and other emerging markets, underscoring ESG disclosure’s pivotal role in enhancing firm value and reducing tax avoidance practices within the Egyptian market. To the best of our knowledge, this study represents one of the earliest empirical explorations into the moderating effect of ESG disclosure on the relationship between tax avoidance and firm value in an emerging market. By presenting empirical evidence from the Egyptian market, this research broadens the existing literature on tax avoidance and firm value, offering fresh perspectives on the influence of ESG disclosure. Early studies have primarily focused on the direct effect of ESG disclosure on firm value. Full article