The empirical finding of an inverse U-shaped relationship between per capita income and pollution, the so …

economic growth deteriorates the environment through increasing amounts of pollution, the deteriorated environment in turn … environment. This link also threatens the sustainability of the world's economic growth, particularly when the emission of …

The relationship between economic growth and pollution is very complex, depending upon a host of different factors … direction: first developing an empirical observation about the world, and then attempting to supply appropriate theories. A … must hold in order to obtain an inverted-U functional relationship between pollution and growth. These models are however …

environmental quality until the moment that pollution is great enough to make profitable the investment in R&D. After this turning …