Published in last 50 years
Articles published on Stage Of Economic Development
- New
- Research Article
- 10.63944/k90m5598
- Oct 23, 2025
- Regional and Country Studies
- Robert Huggins + 1 more
A significant forum of scholarly and practitioner-based research has developed in recent years that has sought both to theorize upon and empirically measure the competitiveness of regions. However, the disparate and fragmented nature of this work has led to the lack of a substantive theoretical foundation underpinning the various analyses and measurement methodologies employed. The aim of this paper is to place the regional competitiveness discourse within the context of theories of economic growth, and more particularly, those concerning regional economic growth. It is argued that regional competitiveness models are usually implicitly constructed in the lineage of endogenous growth frameworks, whereby deliberate investments in factors such as human capital and knowledge are considered to be key drivers of growth differentials. This leads to the suggestion that regional competitiveness can be usefully defined as the capacity and capability of regions to achieve economic growth relative to other regions at a similar overall stage of economic development, which will usually be within their own nation or continental bloc. The paper further assesses future avenues for theoretical and methodological exploration, highlighting the role of institutions, resilience and, well-being in understanding how the competitiveness of regions influences their long-term evolution.
- New
- Research Article
- 10.3389/fpubh.2025.1614193
- Oct 21, 2025
- Frontiers in Public Health
- Yikai Wang + 2 more
IntroductionThis study aimed to systematically analyze the spatiotemporal heterogeneity and drivers of the kidney cancer burden across BRICS member countries (Brazil, Russia, India, China, South Africa, Egypt, Ethiopia, Indonesia, Iran, Saudi Arabia, and the United Arab Emirates) from 1990 to 2021. Given the significant global rise in kidney cancer incidence, elucidating its epidemiological characteristics and influencing factors in countries at different stages of economic development is crucial for formulating targeted prevention and control strategies.MethodsThis study innovatively integrated Joinpoint regression and Age-Period-Cohort (APC) modeling using data from the Global Burden of Disease (GBD) 2021 study to quantify trends in kidney cancer incidence and mortality in BRICS nations. The APC model was employed to disentangle the independent effects of age, period, and birth cohort on the disease burden. These findings were subsequently interpreted in the context of national socioeconomic conditions and health policies to identify key drivers.ResultsGlobally, kidney cancer incidence increased by 142.74% from 1990 to 2021. Saudi Arabia experienced the most dramatic increase (877.78%), while Russia reported the highest Age-Standardized Incidence Rate (ASIR) in 2021 (10.10 per 100,000). Global mortality rates increased by 108.22%, led by the United Arab Emirates (700% growth), with Russia exhibiting the highest Age-Standardized Mortality Rate (ASMR) in 2021 (4.07 per 100,000). Furthermore, APC analysis identified critical drivers: the age effect peaked in the older populations (e.g., Russia’s mortality rate reached 42.8 per 100,000 at age 92.5); the period effect showed a surge in risk after 2000 in most nations (Saudi Arabia’s period Rate Ratio [RR]: 1.52); the cohort effect indicated a 6.60-fold elevated risk for China’s 2002 birth cohort compared to the 1952 baseline, contrasting with declining risks in younger Russian cohorts (RR: 0.66). Regional disparities highlighted interactions between economic transitions and health inequities. Specifically, Saudi Arabia’s burden was associated with metabolic disorders, Russia’s decline aligned with tobacco control initiatives, and India’s rural underdiagnosis reflected critical healthcare gaps.DiscussionThe kidney cancer burden in BRICS countries demonstrates significant spatiotemporal heterogeneity, driven by mechanisms related to population aging, the prevalence of metabolic risk factors, and disparities in healthcare accessibility. The findings underscore the necessity of strengthening environmental governance, implementing metabolic health interventions, and optimizing healthcare resource allocation to advance health equity and achieve Sustainable Development Goals. These insights provide a scientific basis for developing cross-regional strategies for cancer control.
- New
- Research Article
- 10.1016/j.jenvman.2025.127544
- Oct 15, 2025
- Journal of environmental management
- Bekhzod Kuziboev + 6 more
Unveiling the linkage between low-carbon energy and energy sources diversification.
- Research Article
- 10.1111/grow.70063
- Oct 6, 2025
- Growth and Change
- Yang Liu + 1 more
ABSTRACTAlthough the growth in developing countries have always been accompanied by large‐scale land expropriation, whether there is a standard relationship between the scale of land expropriation and the stage of economic development remains unclear. This paper aims to explore the practice of land expropriation in China, and while there are polarized views around its role in economic growth, inter‐provincial differences also mean that it is an excellent sample for clarifying the relationship. By exploring the growth coalition consisting of local bureaucracies, central government and peasants within the land‐centered development model, the possible inverted U‐shaped trend of land expropriation scale with economic development is theoretically analyzed, from which hypotheses on the Land‐expropriation Kuznets Curve (LKC) are proposed. Further, using Chinese provincial panel data, the results not only show the invert‐U shaped relationship between economic development and land expropriation and its regional heterogeneity, but also identify four determinants of dependence on land expropriation: internal demands of local bureaucracies to advance urban infrastructure, real estate and manufacturing sectors, horizontal competition among local bureaucracies, vertical supervision by the central government, and external forces from peasants. These conditions combine to expand the scale of land expropriation in the less developed period, leading to the phenomenon of land expropriation dependence. However, with the transformation of China's economic growth and development model, changes in above‐mentioned various conditions have made it possible to reduce land expropriation dependence, and the reduction typically occurs when GDP per capita exceeds 50,000 RMB. This paper provides a new perspective for understanding China's land‐centered development story based on the Growth Machine Theory and generates policy implications for the land management practices in other developing countries.
- Research Article
- 10.1186/s40008-025-00357-2
- Oct 4, 2025
- Journal of Economic Structures
- Jia Ren
Abstract Since the 2010s, the proportion of processing trade in total trade in China has been declining year by year. Meanwhile, given the different stages of economic development across regions in China, the situation of processing trade might vary by region. This paper analyzes the realities of processing trade in different regions of China based on the regional input–output tables of 28 provinces, cities, and autonomous regions, measuring the Vertical Specialization (VS) index. The analysis reveals that the VS index levels in the eastern regions are higher compared to the central and western regions. From 2012 to 2017, the VS index in the eastern regions showed a declining trend, while in the central and western regions, many areas experienced an increase. Second, decreasing reliance on import inputs from processing exports was observed in the results of a newly proposed indicator. At last, the analysis of the VS index and per capita GDP shows that although the VS index rises with increases in per capita GDP, once per capita GDP surpasses a certain level, the VS index may shift from increasing to decreasing.
- Research Article
- 10.3389/fpubh.2025.1596682
- Sep 5, 2025
- Frontiers in Public Health
- Juncheng Lyu + 4 more
BackgroundAlthough some studies have reported correlations between economic factors and suicide rates, there is a lack of systematic analysis from a global data perspective.MethodsThe most recent suicide rates (from 2017 to 2019) were obtained from the World Health Organization (WHO). The economic variables were obtained from the World Bank (WB) website. Software was used to match the suicide rates and the related variables from the database, country by country. Statistical methods were used to analyze the correlations between them.ResultsEconomic indicators, such as national income level, GDP per capita, GNI per capita, and the Gini index, are negatively correlated with suicide rates. However, this correlation was not consistent across all countries, and the direction of the association varied depending on the income levels of the countries. GDP per capita, GNI per capita, and the consumer price index were negatively correlated with suicide rates in the low-income group. A statistically significant correlation between the consumer price index and the Gini index was found in the lower-middle- and upper-middle-income groups, respectively. GDP per capita, GNI per capita, and the consumer price index showed positive correlations, but the Gini index had a negative correlation with suicide rate in the high-income group.ConclusionThe correlations between economic indicators and suicide rates vary by national income level, playing different roles at different stages of economic development. Differentiated and targeted monitoring of economic indicators has practical implications for suicide prevention.
- Research Article
- 10.1136/bmjopen-2024-097537
- Sep 1, 2025
- BMJ open
- Zihong Wang + 8 more
Eye injury poses a significant challenge to the global burden of blindness. Using the Global Burden of Disease (GBD) database, this study aims to comprehensively assess the latest global burden of eye injury and examine its relationship with the Socio-Demographic Index (SDI). Observational study. Population-based data on eye injury from the GBD 2021 database, covering the period 1990-2021. Primary outcomes included incidence, prevalence and years lived with disability (YLDs) due to eye injury. Secondary outcomes included temporal trends analysed using joinpoint regression, age-period-cohort effects, health inequality indices (Slope Index of Inequality (SII) and Concentration Index) and decomposition analysis of contributing factors. From 1990 to 2021, global eye injury incidence (in thousands) increased from 33 702.80 (95% uncertainty interval (UI): 27 271.41 to 44 086.12) to 39 996.91 cases (95% UI: 32 341.74 to 52 215.74), while age-standardised incidence rates (ASIR) declined from 622.73 to 503.26 per 100 000 population (average annual percent change (AAPC): -0.63, 95% confidence interval (CI) -0.81 to -0.46, p<0.001). High SDI regions showed the highest ASIR (775.56 per 100 000) compared with low SDI regions (368.26 per 100 000) in 2021. Males bore a greater burden, particularly in high-middle SDI regions (ASIR: 989.98 vs 317.09 per 100 000 for females). Age-period-cohort analysis revealed young adults (20-24 years) had the highest risk across all regions, while high SDI regions uniquely showed accelerating rates among the elderly (>75 years). Health inequality between SDI regions narrowed (SII decreased from 3.10 to 2.21 per 100 000), with population growth contributing 207.93% to increased incidence. The burden of eye injury exhibits distinct patterns across development levels, requiring tailored interventions: occupational safety for young adults in developing regions and fall prevention for the elderly in developed areas. Prevention strategies should align with regional economic development stages, emphasising workplace safety in industrialising regions while maintaining robust healthcare accessibility.
- Research Article
- 10.1080/14693062.2025.2549563
- Aug 26, 2025
- Climate Policy
- Amro Nasr + 2 more
Scenario-dependent discounting for climate change adaptation decisions for infrastructure
- Research Article
- 10.1080/01494929.2025.2540965
- Aug 21, 2025
- Marriage & Family Review
- Thi Minh Thi Tran
There is a diversity of patterns and mobilizing factors in marriage and family in Vietnam and some East Asian societies with some similarities in sociocultural context. This article provides an overview of evolving marriage in several countries in Southeast Asia (i.e. Vietnam) and East Asia (i.e. Japan, Korea, Taiwan and China). These societies share some similarities in socio-cultural ideology (i.e. Confucianism and familialism) while undergoing different stages of modernization and economic development. This article calculates the number and rates of marriage and divorce as well as transnational marriage and divorce by using national statistics from Vietnam Gender Equality Survey 2024, the Vietnam General Statistic Office, the Vietnam Ministry of Justice, the Ministry of the Interior of Taiwan, Statistics Korea, the Ministry of Health, Labor and Welfare of Japan, Statistics of Japan, and the National Bureau of Statistics of China in the period 2001–2023 in order to show contradictory persistence and changes in marriage and their social, cultural and economic context.
- Research Article
- 10.26425/1816-4277-2025-6-229-240
- Aug 6, 2025
- Vestnik Universiteta
- M A Tanina + 2 more
At the present stage of social and economic development and in the context of sanctions policy and geopolitical tensions, the level of competition in the global higher education market is increasing many times. In order to increase Russian universities attractiveness for foreign students, it is necessary to create the most favorable conditions for studying and living. To achieve this goal, universities should apply various methods of social adaptation and cultural, educational, and educational involvement of foreign students in various processes. The results of sociological monitoring of the specifics of working with international students, conducted through an electronic questionnaire survey among specialists working with international students in 21 branches of the Financial University Under the Government of the Russian Federation (N = 128 people) located in various regions of the country, have been presented. According to the monitoring results, it has been revealed that working with international students in university environment requires the use of a system-building approach in the context of digital and cultural changes. For effective implementation of this activity, it is necessary to attract qualified specialists in the spheres of migration and visa documentation and social and psychological adaptation, as well as educational process organization. At the same time, the work should include the following aspects: forming an inclusive environment for teaching foreign citizens, implementing digital support, creating a mentoring and psychological support system, and developing practical skills.
- Research Article
- 10.21686/2413-2829-2025-4-228-241
- Jul 20, 2025
- Vestnik of the Plekhanov Russian University of Economics
- V V Kuzin
In today’s world business-ecosystems gain status of digital superpowers that can control a considerable part of economic and social processes, get extra profit and value and influence global competitive market. At present we can observe smoothing of traditional industry borders in favor of business-integration, which offer various services to customers within the frames of seamless experience. Economic importance of ecosystem can be identified by study of its entrepreneurial model that is chosen for attracting and inclusion of new participants. It is evident that the largest economic ecosystems of the world and Russian business-ecosystems follow the mixed model combining elements of transparency and exclusiveness. Companies in Russia that use the ecosystem approach to organization of their work are not so highly developed as international leaders. However, some of them such as “Yandex’, ‘Mail.ru’, ‘1C’, ‘TBank’, and ‘Wildberries’, according to the consulting group BCG, were included in top 100 of technological companies of developing countries in 2020, which can testify to their potential on the way to reaching technological leadership. Business-ecosystem is a model of organization functioning, which consolidates different technologies, goods and services on the basis of common cloud platform under the common brand and is meant for complex and effective interaction with customers. Analysis of different approaches and concepts of home and overseas academicians can allow us to draw a conclusion that at the current stage of economic development there are no unified definitions and standards in the field of assessment of business-ecosystem work. The author of the article proposes methodology of estimating the impact of finance indicators of ecosystem work on its properties as a tool of analyzing and managing business-ecosystems in general.
- Research Article
- 10.1186/s13561-025-00636-5
- Jul 8, 2025
- Health Economics Review
- Yujie Cui + 2 more
BackgroundThe impact of population health on economic growth has been widely discussed, but the extent of its influence remains inconclusive. One possible reason is the heterogeneity of health's impact on economic growth across different stages of economic development. This paper, from the perspective of changes in economic structure, attempts to study the long-term and marginal effects of health on economic growth.MethodsBy deriving from the Cobb–Douglas production function, this study constructs an empirical model to analyze the impact of health on economic growth, considering economic structure. Instrumental variable methods are employed to address potential endogeneity issues. Panel data at the country level are constructed using data from the World Bank database, Penn World Tables, and the World Health Organization, covering the period from 1980 to 2015.ResultsIt reveals a positive long-term relationship between health and economic growth, particularly in post-demographic transition nations. The marginal impact of health on economic growth varies depending on the economic structure, the economic benefit of health promotion is notably pronounced in countries with a larger share of the primary sector. As countries reach higher levels of economic development, the marginal effect of health tends to decrease. Furthermore, health changes affect labor force distribution across industries, with varying impacts.ConclusionsThe findings suggest that developing nations, having undergone demographic transition, experience greater returns on health investments compared to developed counterparts. This research offers novel insights into the diverse effects of health on economic growth, emphasizing the importance of economic structure in understanding these dynamics.
- Research Article
- 10.13227/j.hjkx.202406016
- Jul 8, 2025
- Huan jing ke xue= Huanjing kexue
- Bao-Guo Shan + 3 more
Achieving carbon peak before 2030 and carbon neutrality in 2060 is the solemn commitment of the Chinese government to the international community. It is important to scientifically identify the key influencing factors and accurately predict carbon peak value and time for achieving the dual carbon targets in China. On the basis of the economic and energy consumption data from 1980 to 2022, a STIRPAT extended multivariate-nonlinear model was built, which was fitted by a ridge regression to examine the relationships between carbon emissions of energy consumption and seven influencing factors, including population, GDP per capita, energy intensity, secondary industry proportion, fossil energy proportion, electrification rate, and urbanization rate. Based on the proposed STIRPAT extended model, predictions of carbon emissions of energy consumption were made for the period from 2023-2035 under three different scenarios. The results showed that: ① There were five factors that increased the carbon emissions including population, urbanization rate, secondary industry proportion, GDP per capita, and electrification rate. The degree of influence decreased in turn. Fossil energy proportion and energy intensity were the two factors that restrained the carbon emissions. The influencing degree of fossil energy proportion was the biggest, and that of energy intensity was the smallest. ② During different stages of economic development, the roles and contributions of the seven factors changed significantly. In particular, the effects of energy intensity, secondary industry proportion, and fossil energy proportion resulted in the turning changes, which reflected the periodical characteristics of carbon emissions in different stages. ③ Carbon emissions of energy consumption will achieve a peak during 2028-2032 in China. The peak was 11.66-12.75 billion tons. Under the baseline scenario, the peak was 12.04 billion tons, which will be fulfilled in 2030. The peak of the low-carbon scenario was 11.66 billion tons in 2028, which was 3.16% lower than that of the baseline scenario. The peak of the high-carbon scenario was 12.75 billion tons in 2032, which was 5.90% higher than that of the baseline scenario. Based on the research results, reasonable suggestions such as accelerating renewable energy development, increasing the electrification rate, optimizing the economic structure, and improving energy efficiency are put forward to ensure that China will achieve its carbon peak target before 2030.
- Research Article
- 10.21285/2227-2917-2025-2-311-319
- Jul 6, 2025
- Izvestiya vuzov. Investitsii. Stroitelstvo. Nedvizhimost
- L N Chernyshov + 2 more
This paper investigates approaches to mitigating staff shortage in maintenance of real estate properties of the urban economy. The role of the institute for vocational guidance of citizens is considered. Reasons for staff shortage on the labor market are discussed, including in the fields of the severely afflicted professions, including qualified workers, middle-ranking workers, and high university degree specialists corresponding to the present stage of economic development. The statement about the prestige of professions in the sphere of housing and communal services is proved to be unreasonable. The multidisciplinary nature of such an activity as derived from the use of buildings is discussed. The methods of vocational guidance to children, pupils, students, and adults as one of the priority areas of state policy are characterized. Best practices of vocational guidance, i.e., federal and regional projects and events contributing to the elimination of current staff shortage of workers in maintenance of real estate properties of the urban economy, are presented. In this paper, the authors set tasks for the professional community concerning prospects for the upcoming development of vocational guidance taking into account the technological, global, and social challenges.
- Research Article
- 10.30742/economie.v7i2.4588
- Jun 30, 2025
- Economie: Jurnal Ilmu Ekonomi
- Rochmat Bagus Antari + 2 more
Global warming is very serious because for the first time the average annual temperature has crossed the threshold of 1.5 ° C. One of the causes of the increase in temperature is the presence of greenhouse gases (GHG) and carbon dioxide (CO2) is one of these gases. ASEAN is a regional organization whose member countries are mostly middle income countries and also has high economic growth because they are in the stage of economic development where according to the environmental kuznet curve (EKC) hypothesis this will increase environmental degradation. In addition, ASEAN has a high level of CO2 emissions. This study aims to analyze the factors that influence carbon dioxide emissions in ASEAN from 2014 to 2023. The variables used are CO2 emissions as the dependent variable, then GDP, FDI, Population, and Industrial Rate as the dependent variables, then analyzed using the panel data regression method. The results of the study showed that GDP and Population have a significant positive effect on CO2 emissions while FDI and Industrial Rate produce negative coefficients but do not have a significant effect on CO2 emissions.
- Research Article
- 10.37335/ijek.v13i1.309
- Jun 30, 2025
- International Journal of Entrepreneurial Knowledge
- Karim Iddouch + 1 more
In this paper, we examine the role of entrepreneurial ecosystems in driving economic growth across 107 economies from 2011 to 2023. Our objective is to develop and validate a composite index that captures the efficiency of national entrepreneurship systems and assesses its impact on economic growth. To achieve this, we construct six entrepreneurial sub-indexes and a composite Global Entrepreneurship Monitor Index (GEMI) using a two-step approach: first, we apply an output-oriented slacks-based measure (SBM) data envelopment analysis (DEA); second, we use ordinary least squares (OLS) and fixed effects panel regressions to estimate the relationship between GEMI and GDP growth. We also conduct multiple robustness checks using GDP per capita and alternative model specifications. We find that GEMI has a robust positive impact on economic growth, consistent with the Entrepreneurship Ecosystem Theory (EET), which emphasizes the critical role of a well-rounded entrepreneurial environment. Our additional analyses reveal key patterns across income levels, regions, and stages of economic development, indicating that high-income countries benefit the most, middle-income countries experience moderate gains, and low-income countries face significant barriers. We observe that GEMI plays a more transformative role in developed economies, where synergies between financial systems, governance, and open markets amplify its effects compared to emerging economies. Regional variations reveal stronger gains in Europe and Latin America, while Sub-Saharan Africa and MENA regions remain constrained by weak infrastructure and governance. Results remain consistent across robustness checks using GDP per capita and alternative estimation techniques. Our findings offer practical implications for policymakers, international development institutions, and researchers aiming to foster entrepreneurship-led growth. We emphasize the importance of strengthening regulatory frameworks, expanding access to finance, and investing in education and infrastructure to unlock the transformative potential of entrepreneurship.
- Research Article
- 10.15798/kaici.2025.27.2.111
- Jun 30, 2025
- Korea Association for International Commerce and Information
- Bongho Choi
This study analyzes the impact of income inequality on human capital accumulation in developed and developing countries through trade openness. The empirical analysis results are as follows. Income inequality negatively affects human capital accumulation in developed countries. However, in developing countries, income inequality has a positive effect on human capital accumulation. Similar results were derived in both the long term and the short term.Trade openness has a positive impact on human capital accumulation in both developed and developing countries. Meanwhile, in developed countries, human capital accumulation was found to reduce income inequality, whereas in developing countries, human capital accumulation exacerbated income inequality. Trade openness increased income inequality in developed countries, but it mitigated income inequality in developing countries through income redistribution on unskilled workers. These results suggest that under trade openness, human capital accumulation and income inequality interact with each other, and the extent of their impact depends on the stage of economic development.
- Research Article
- 10.15678/krem.18691
- Jun 24, 2025
- Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie
- Maria Majewska + 2 more
Objective: To empirically investigate the relationship between education quality and technological progress in the business sector at different stages of economic development. Research Design & Methods: We divided 160 countries into four groups by GDP per capita. The research period was 2007–2021. We use Spearman’s correlation analysis to verify associations between nine indicators for education quality and ten indicators for technological progress. Findings: Our outcomes show that if education quality does not improve, countries do not move up the economic development ladder. Adult literacy, primary education quality, adult skills, and women’s average years in school have the strongest influence on technological progress. Implications / Recommendations: Our paper contains many implications for those seeking to improve social well-being. For example, governments should ensure that women have access to education on equal terms with men. Otherwise, they lose an important source of technological progress and impede the development of human capital. Greater emphasis should be placed on learning how to write and describe reality, read with comprehension, perform simple calculations without a calculator, and teach various learning methods. In the absence of these, the skills of primary, secondary and higher education graduates will not improve. Contribution: The outcomes of our research, both theoretical and empirical, create a multi-faceted approach to the issue of the mutual influence of education and technological progress. They allow us to look at this problem from the perspective of subsequent stages of economic development.
- Research Article
- 10.3390/su17135712
- Jun 21, 2025
- Sustainability
- Ge Jiang + 1 more
Low-carbon transformation and common prosperity are critical pillars of China’s economic growth. To explore the mechanism relating the two, this paper analyzes how carbon efficiency influences the urban–rural income gap, including its transmission mechanism and heterogeneity, and uses panel data from 240 Chinese prefectural cities (2006–2019). The results reveal an “inverted U-shaped” relationship between the low-carbon transition and urban–rural income gap. Specifically, as the carbon emission efficiency improves, the impact of the low-carbon transition on the urban–rural income gap changes from positive to negative. This finding remains robust under robustness tests. The heterogeneity test indicates that the “inverted U-shaped” relationship exhibits regional heterogeneity, resource endowment heterogeneity, economic development stage heterogeneity, and urban–rural income gap level heterogeneity. Furthermore, urban low-carbon transition influences the urban–rural income gap through industrial structure, employment structure, and human capital. This paper discusses the combination of low-carbon transformation and common prosperity, and takes into account both ecological sustainability and social sustainability. The findings of this paper offer policy proposals for advancing the achievement of dual-carbon goals and common prosperity, and provide references for developing countries.
- Research Article
- 10.61546/25792679-2025.1.12-pl-12
- Jun 20, 2025
- Проблемы социально-экономического развития: поиски, перспективы, решения
- Vardan Bostandjyan + 1 more
The article is devoted to the study of the use of derivative financial instruments. At the current stage of the global economic development, derivative financial instruments have become very important due to their advantages. The purpose of the study is to assess the role of derivative financial instruments in the securities market, to study their types and characteristics, and the importance of derivative financial instruments in the financial management system of an organization. The objectives of the study are to study the essence and economic content of derivative financial instruments, to present the main functions of derivative financial instruments and their characteristics, as well as to discuss the main types of derivative financial instruments and their differences.