The heterogeneous output effects of inter-city and intra-city transportation infrastructure in China are examined using 219 prefecture-level city data from 1999 to 2012. Using the panel fully-modified OLS analysis, we find that at the Chinese prefecture-level city the estimated contribution rate...

Against the background of green development, green technology innovation is an important driving force for high-quality economic development. Countries are facing energy shortages, environmental deterioration and other issues that limit high-quality economic development by extending green...