A study on China s [i.e. China's] trade openness and inequality of regional economic development Study on China s trade openness and inequality of regional economic development Study on China's trade openness and inequality of regional economic development Study on China's tax regional burden and its coordination with the regional economic development A study on the characteristics and strategy of Yunnan's economic development A study on urbanization and regional economic development Study on urbanization and regional economic development based on the study of the industry cluster, the difference of regional economic development A study on the labor shortage issue of Japanese economic development Study on the impact of China's high speed railway on high-quality economic development