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Protecting a nation’s heritage is an essential element for sustainable development. Heritage attracts tourism and drives tourist income, as well as bringing wider economic, social and environmental benefits. This study aims to improve understanding of the relationship between heritage protection spending in countries and economic development via tourism revenues via economic logic and the Kuznets curve.

This study applies economic modelling to test for the presence of a Kuznets curve. This study uses rare available matched data on heritage protection spending from UNESCO and on travel and tourism total contribution to gross domestic product (GDP) from the World Travel and Tourism Council.

This paper finds evidence of a negative quadratic relationship between heritage protection spending per capita and tourism GDP per capita, whereby increases in heritage spending initially lead to more tourism income (typically less developed nations), but then tourism spending increases more rapidly for smaller increases heritage spending on top of this initial investment (typically more developed nations). No countries are yet at the stage where they reap high tourism income from much lower levels of heritage spending.

The findings suggest that the future of heritage tourism will be very different to that of today; future tourism is likely to develop significantly through innovations in management approach and advanced technologies to manage the balance between demand and heritage degradation.

The predictive model allows us to plot future possibilities for heritage tourism, which in turn enables more informed decision-making regarding the planning and management of future heritage resources and tourism demand. Tourism heritage institutions and their benefactors should further plan and invest in innovations (such as technologies and management practices) to advanced economically and move along the tourism heritage Kuznets curve.

To the best of the author’s knowledge, this paper formally tests, for the first time, for the presence of a Kuznets curve in the relationship between heritage protection spending and tourism income. It provides original evidence of the value of applying the underlying theory of the Kuznets curve in a tourism context.

遗产保护工作是实现可持续发展的基本要素。作为重要的旅游吸引物, 遗产资源可以推动旅游业增收, 同时也会带来更广泛的经济、社会和环境效益。借由经济学逻辑和库兹涅茨曲线, 本研究开拓性地剖析了国家遗产保护支出和旅游财政收入带来的经济增长之间的关系。

本研究运用经济模型来检验库兹涅茨曲线的存在。研究所用相匹配的遗产保护支出和旅游业对GDP总贡献的珍贵数据分别来自联合国教科文组织和世界旅游理事会。

结果显示人均遗产保护支出与人均旅游GDP之间存在负曲线关系, 即最初增加遗产保护支出会带来相应的旅游收入增长（特别对于欠发达国家而言）, 然而有了最初的投资积累之后, 后续较小幅度的遗产保护支出增长便能带来较大的旅游收入增长（特别对于较发达国家而言）。目前还没有国家达到以较低的遗产支出水平获得高额旅游收入的阶段。

本文首次正式验证了遗产保护支出与旅游收入之间存在库兹涅茨曲线, 由此支持了库兹涅茨曲线基本理论在旅游情境中的应用价值。

研究结果表明, 未来的遗产旅游将与今天截然不同。通过创新管理方法和应用先进技术以协调旅游需求与遗产资源退化之间的关系, 未来的遗产旅游可能会得到显著发展。

通过预测模型, 我们能够描绘出遗产旅游可能的未来, 这反过来又使我们能够就未来遗产资源和遗产旅游需求的规划与管理做出更明智的决策。旅游遗产机构及其赞助者应进一步做好驱动创新的规划和投资（如技术和管理实践）, 以实现经济繁荣, 并使遗产旅游实践沿着库兹涅茨曲线的方向发展。

La protección del patrimonio de una nación es un elemento esencial para el desarrollo sostenible. El patrimonio atrae al turismo e impulsa los ingresos turísticos, además de aportar mayores beneficios económicos, sociales y ambientales. Este estudio realiza una contribución original mediante el análisis de la relación entre el gasto en protección del patrimonio en los países y el desarrollo económico a través de los ingresos del turismo basándose en la lógica económica y la curva de Kuznets.

El estudio aplica modelos económicos para contrastar la presencia de una curva de Kuznets. El estudio utiliza datos combinados disponibles sobre el gasto en protección del patrimonio de la UNESCO y sobre la contribución total de los viajes y el turismo al PIB del Consejo Mundial de Viajes y Turismo.

El trabajo evidencia una relación cuadrática negativa entre el gasto en protección del patrimonio per cápita y el PIB turístico per cápita, de forma que inicialmente, los aumentos en el gasto en patrimonio conducen a más ingresos por turismo (generalmente en naciones menos desarrolladas), pero el gasto turístico aumenta más rápidamente ante pequeños aumentos del gasto en patrimonio además de esta inversión inicial (generalmente en naciones más desarrolladas). Ningún país se encuentra en la etapa donde se alcance altos ingresos por turismo a partir de niveles inferiores de gasto en patrimonio.

Este trabajo prueba formalmente, por primera vez, la presencia de una curva de Kuznets en la relación entre el gasto en protección del patrimonio y los ingresos del turismo. Proporciona evidencia original del valor de aplicar la teoría subyacente de la curva de Kuznets en un contexto turístico.

Los resultados sugieren que el futuro del turismo patrimonial será muy diferente al de hoy; es probable que el turismo futuro se desarrolle significativamente a través de innovaciones en el enfoque de gestión y tecnologías avanzadas para gestionar el equilibrio entre la demanda y la degradación del patrimonio.

El modelo predictivo nos permite trazar las posibilidades futuras para el turismo patrimonial, lo que a su vez permite una toma de decisiones más informada sobre la planificación y gestión de los recursos patrimoniales futuros y la demanda turística. Las instituciones de patrimonio turístico y sus benefactores deben planificar e invertir aún más en innovaciones (como tecnologías y prácticas de gestión) para avanzar económicamente y moverse a lo largo de la curva de Kuznets del patrimonio turístico.

This paper aims to study the importance of initial resource endowments, the savings rate, and financing opportunities for growth and the distribution of income.

The analysis is based on a theoretical model of accumulation and applies simulations. The frame of presentation is the so‐called Kuznets curve.

The paper shows under what circumstances the inverted U‐shaped curve hypothesized by Kuznets emerges and clarifies the role of a functioning capital market for economic growth and the distribution of income. It turns out that when initial income disparities are high and the savings rate is low it cannot be taken for granted that economic growth leads to a more equal income distribution. The paper further shows that with an efficient capital market total income rises faster and further and inequality is always lower than without a functioning capital market.

Future research should help to identify the institutional and regulatory frameworks that promote a stable basic financial infrastructure.

By drawing on the concept of a hydraulic society the interplay of key factors that drive economic growth and income inequality can be clarified.

The purpose of this paper is to explore the effect of growth in different sectors of the economy of developing countries on income inequality and analyze how inflation, as a proxy for monetary policy, makes a proportionate contribution for setting a binding national target for reducing income inequality. The paper examines the existence of a linear or nonlinear effect of inflation and sectoral economic growth on income inequality using a balanced panel data of 92 developing countries for the period of 1990–2014.

Methods section includes several steps as below: first, the functional form of the model using panel data for investigating the contribution of economic sectors in income inequality; second, to estimate the relationship between income inequality and sector growth: testing the Kuznets hypothesis; third, to estimate the relationship between inflation and income inequality base on general functional form of the model proposed by Amornthum (2004); fourth, a panel Granger causality analysis based on a VECM approach.

The statistically significant finding shows that first agricultural growth and then industrial growth have a dominate impact in reducing income inequality in our sample. But, the service sector growth has positive effects. The results confirm the existence of Kuznets inverted “U” hypothesis for industry growth and Kuznets “U” hypothesis for service sector growth. The findings show that sector growth and inflation affect income inequality in the long-run.

This research is an original paper which analyzes the effect of growth in different sectors of the economy of developing countries (agriculture, manufacturing and services sectors) on income inequality and test the Kuznets hypothesis in terms of sector growth and at the same time, examine the existence of a linear/nonlinear effect of inflation and sectoral economic growth on income inequality and test Granger causality relationship between income inequality and sector growth and inflation.

The paper aims at re‐examining the notion of low and stable income inequality during the high growth period of Indonesia (1970s‐1990s).

Different approaches are used to reassess the low and stable trend of the overall inequality at the national level such as assets concentration and functional income inequality. Disaggregated inequality at district level is conducted by treating municipalities as growth centres and estimated using the random and fixed effects models as well as the GMM estimation.

Alternative measures of income inequality have indicated that economic inequality in Indonesia was not as low as it was perceived and exhibited an increasing trend during the period associated with the miracle. Furthermore, using the Susenas‐based Gini coefficient, across‐district analysis of inequality indicates the presence of inverted‐U Kuznets curve of income and inequality, which could not be empirically observed when the analysis is based on time series data of aggregate Gini measure at the national level.

The paper challenges the notion of the East Asian economic miracle in the case of Indonesia. It provides some evidence of the Kuznets curve relationship between income and inequality within a country based on cross‐districts exercise.

The present study aims to investigate the non-linear relationship between trade and income inequality to address goal 10 of sustainable development goals (SDGs) using the Kuznets Curve (KC) framework for major emerging countries during 1991–2020.

For this purpose, recent econometric techniques, such as Common Correlated Effect (CCE) and Dynamic Common Correlated Effect (DCCE) estimators have been employed to deal with the cross-section dependence (CD) that arises in panel data, while the robustness of the study is checked through Driscoll–Kraay standard errors method.

The empirical results of the study confirm the existence of inverted “U-shaped” relationship between trade and income inequality suggesting evidence for the trade-led KC in the panel of emerging countries. Along with the non-linear model, the threshold value is estimated to be between 3.5 and 4% of gross domestic product (GDP).

The authors' findings support that trade contributes significantly toward reducing income inequality and helps in achieving goal 10 of SDGs. Hence, trade policies appear to be more egalitarian. The results widen the scope for further research and provide insights for regulators and policymakers in modeling trade policies and changing the status quo trade policy framework accordingly.

The present study is a pioneering attempt to examine the non-linear relationship between trade and income inequality under the KC framework in light of the Agenda 2030 for sustainable development. The study also considers other explanatory factors that have an impact on income inequality. Furthermore, the study considers other explanatory factors that have an impact on income inequality, and the attempt to estimate the threshold value for the trade-led KC is novel and interesting.

This paper not only aims to validate the environment Kuznets curve concerning five Asian economies but also attempts to analyze the impact of some additional factors like financial development, energy consumption and foreign direct investment (FDI) on carbon emissions.

This paper applies pooled mean group approach on the variables of a panel of five Asian economies namely India, Pakistan, Bangladesh, Sri Lanka and Malaysia for a period of 35 years from 1980 to 2014.

This study finds that while moderate economic growth as well as moderate financial development increase carbon emissions, accelerated or exponential economic growth as well as exponential financial development eventually reduce the level of carbon emissions. Energy consumption was found to have a direct and significant relationship with carbon emissions. FDI inflows when analyzed on a stand-alone basis were observed to have an inverse relationship with carbon emissions, while FDI inflows when clubbed with financial development were observed to have a direct relationship with carbon emissions.

The findings of this study, which validate the environmental Kuznets curve, suggest striving for higher economic growth, even if it causes increased carbon emissions to begin with, as the effects on carbon emissions would eventually get reversed when the economic growth accelerates at a higher rate. This study also suggests the appropriate routing of FDI through a mature and developed financial sector to leverage its impact on the environment in a positive way.

To the best of the knowledge of the authors of this paper, there has not been any research carried out so far, which has analyzed the impact of the combination of variables selected for this study concerning the five Asian economies covered in this paper.

The purpose of this paper is to investigate the validity of the environmental Kuznets curve (EKC) between gross domestic product (GDP) per capita and environmental indicators in the Gulf Cooperation Council (GCC) countries. Additionally, this paper also explores the relationship between health and income levels in the GCC to identify whether higher incomes necessarily affect overall health metrics.

The first part of this paper studies the relationship between GDP per capita and the greenhouse gases (GHGs) – carbon dioxide (CO₂), nitrous oxide (N₂O) and methane (CH₄) (all per capita data). The second part of this paper explores the relationship between GDP per capita and the following health variables: life expectancy, infant mortality and child mortality – for GCC countries during 1980–2012. Unit root tests were conducted, followed by cointegration analysis, leading to Granger causality test and vector error correction model.

GCC states are highly dependent on fossil fuel production and hence depend on hydrocarbons for GDP growth. Most of the GCC states demonstrate lack of the EKC curve. However, there is evidence of U-shaped relationship between environmental pollutants and GDP per capita in kingdoms like Bahrain and Saudi Arabia (KSA). United Arab Emirates (UAE), on the other hand, demonstrates EKC, though not significantly. The study then explores the existence of potential relationship between health and GDP in the GCC, where it has been found that higher incomes have driven a better standard of living resulting in improved health metrics and higher life expectancy rates. Thus, growing incomes have played a positive role by improving health parameters and by offsetting some of the negative impacts from lack of environmental improvement as demonstrated by the absence of EKC in general in GCC.

GHG emissions data are individually and empirically examined for each country in the GCC. Furthermore, the study delves into the environmental problems that lead to health issues, which were initially caused by pollution. The results of the empirical analysis provide strong evidence that GCC countries need to rely less on fossil fuels, as lower productivity due to higher pollution reduces income and economic growth in most countries.

This study has incorporated competitiveness by considering it a significant factor behind determining as well as moderating industrial value added in the environmental Kuznets curve (EKC) framework. This study aims to explore the moderating role of competitiveness policy in EKC with an aim to promote business led sustainability at national level.

Considering the environmental deterioration aspect of industrialization, this study tests the existence of EKC for SAARC countries using the data from 1996 to 2021 using second-generation static panel data model.

Estimated results have validated that moderating effect is responsible for improving environmental sustainability in SAARC countries. Furthermore, population density is responsible for increasing while trade openness is responsible for decreasing carbon emissions.

Higher industrial activities are a symbol of upward-moving economic growth. But its other impact is in the form of environmental deterioration. However, the relationship between industrialization and environmental quality can be identified through EKC.

Economic development in Southeast Asia hasbeen connected with environmental degradation. Its cause is mainly attributed torapid industrialization, coupled with urbanization and export growth, whereas thevicious circle of the poverty and the contamination is a minor case. The environmental damage in those countries will be partly reduced along with the rising income level, as the hypothesis of the “environmental Kuznets curves” argues. However, some of the major problems, CO₂ emissions for example, would not be solved automatically on the basis of the market mechanism. The governments have indeed tried to prevent contamination, drawing lessons from experiences in the industrialized countries, but their continued efforts are indispensable for the well‐being of the people.

Based on the hypothesis of the environmental Kuznets curve (EKC), the purpose of this study is to investigate the relationship between environmental pollutants (as measured by CO₂ emissions) and GDP for India, over the period 1980–2012. The presence of an inverted “U” shape relationship is examined while controlling for factors such as the degree of trade openness, foreign direct investment, oil prices, the legal system and industrialization.

To verify whether the EKC follows a linear, quadratic or polynomial form, autoregressive distributed lag (ARDL) bounds testing approach for cointegration with structural breaks is adopted. The annual time series data for carbon emissions (CO₂), economic growth (GDP), industrial development (industrialization), foreign direct investment and trade openness have been obtained from World Development Indicators online database. Crude oil price (international price index) for the period is collected from the International Monetary Fund. Data for total petroleum consumption are collected from the US Energy Information Agency. Data for economic freedom variables are from the Fraser Institute's Economic Freedom Index's online database.

The findings support the existence of inverted U-shaped EKC in the short-run, but not in the long-run. A linear monotonic relationship has also been estimated in select model specifications. Additionally, trade openness has been estimated to reduce emissions in models, which incorporate FDI. Else, where significant, its impact on carbon emissions is adverse. A rise in fuel price leads to reduction in carbon emissions across model specifications. Further, the lower size of government degrades the environment both in the long-run and short-run.

Given the existence of the pollution haven hypothesis, wherein more trade and foreign direct investments cause environmental degradation, the paper proposes formulation of appropriate regulatory mechanisms that are environmentally friendly. Additionally, India's new economic policies, favoring liberalization, privatization and globalization, reinforces the need to strengthen environmental regulations.

Incorporation of economic freedom as measured by the “Size of Government” in the EKC model is unique. “Size of Government” deserves a special mention. The rationale for including this explanatory variable is to understand whether countries with lower government size are more polluting. After all, theory does suggest that goods and services, which have higher social cost vis-à-vis private cost, shall be overproduced in economies that adopt more market-friendly policies, necessitating government intervention. In the study, size of government is measured as per the definition and methodology adopted by Fraser Institute's Economic Freedom of the World Index.