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This study investigated the relationship between economic growth and the amount of waste at the provincial level of Thailand, based on the hypothesis of the environmental Kuznets curve. The panel data was obtained from 76 provinces in the period of 10 years (2006-2015) giving a total of 760 observations. Panel cointegration method was used to estimate the effects of Gross Provincial Product (GPP) per capita, the number of population and the number of tourists on the amount of solid waste. The results of the panel co-integration test showed that the amount of solid waste had long-run equilibrium relationships with all independent variables. The coefficient estimates showed that the amount of waste was positively related with GPP per capita, the number of population and the number of tourists. In addition, the amount of solid waste increased with GPP per capita at a decreasing rate. This result was consistent with the environmental Kuznets curve with estimated turning point at the level of per capita GDP of 594,558 Baht. Keywords: Thailand Economy and Waste, hypothesis of environmental Kuznets Curve, gross provincial product per capita, panel cointegration and pooled (weighted) static ordinary least square
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