Bhattarai, Gandhi Raj; Hite, Diane; Hatch, L. Upton; … - Agricultural and Applied Economics Association - AAEA - 2003
Fertilizer consumption per cubic meter of freshwater is taken as a proxy for global water quality indicator. A global model of environmental quality for 121 countries confirms the Kuznet's hypothesis. Global turning point is reached at nearly five times the average income of all countries....