Kuznets curve an empirical regularity ?
نویسندگان
چکیده
The empirical literature on the environmental Kuznets curve (EKC) purports to describe how a nation's environmental quality will evolve if it makes the transition from poverty to wealth. The popular generalization is that pollution will first increase and then, if income becomes sufficiently high, decline. Empirical support for this proposition is based primarily on crosscountry variations in income and pollution rather than evidence on the behavior of individual countries over time. We examine a recently available data set on SO 2 , smoke, and particulate air pollution to look for examples of countries following the EKC process. For most pollutants the income-pollution pattern does not differ from what would be expected to occur by chance. According to the EKC hypothesis, the driving force in the worldwide decline in air pollution is growth in income. To check the plausibility of this explanation, we estimate country-specific income elasticities for clean air that are implied by the EKC framework. We find them to be implausibly large relative to other estimates in the literature. We suggest an alternative hypothesis, that public support for environmental protection increased dramatically around 1970, sparking increased efforts to improve environmental quality. Cleanup was faster in rich countries than in poor, however. The record of within-country air pollution trends is broadly consistent with this story.
منابع مشابه
Environmental Kuznets Curve: new evidences based on a dynamic panel threshold model
This paper examines the non-linear relationship between CO2 emissions and economic development using an innovative dynamic panel threshold technique. The sample consists of 35 developed countries over the period 2003-2010. The empirical results indicate that there is a threshold effect in the relationship between economic growth and pollutant emissions as suggested by the environmental Kuznets ...
متن کاملKuznets Curve: A Simple Dynamical System-Based Explanation
In the 1950s, a future Nobelist Simon Kuznets discovered the following phenomenon: as a country’s economy improves, inequality first grows but then decreases. In this paper, we provide a simple dynamical system-based explanation for this empirical phenomenon. 1 Kuznets Curve: A Brief Reminder and Need for an Explanation What is the Kuznets curve. In the 1950s, Simon Kuznets, an American economi...
متن کاملDemocracy and Environment Quality in Selected Countries: An Application of Panel Data
T his study investigates the relationship between quality of environment and democracy among different countries over the period of 2002 - 2012. Democracy and accumulated democracy indices have been considered as political inequality variables influencing the quality of the environment among different countries in the reduced form of Kuznets’ environmental curve (EKC) hypotheses mode...
متن کاملIs There a Kuznets Curve?
No. There has never been good evidence for a pattern of rising inequality in low-income countries and falling inequality in higher income countries. The only evidence that appears to support the Kuznets hypothesis is the cross-sectional pattern of inequality levels across countries, although the Kuznets hypothesis is an assertion about the path of inequality within countries. Numerous cross-sec...
متن کامل