empirical study on underdeveloped areas in China 城镇化与医疗资源配置:中国欠发达地区实证研究:empirical study on underdeveloped areas in China Empirical study on the exclusionary rule in China Empirical study on corruption in transitional China Empirical study on convergence and the regional disparities in China Empirical study on income distribution of listed firms in China Empirical study of public trust in local government in China Empirical study on the level of natural sciences research in China Micro empirical study of life insurance demand in China Empirical study on earnings management of listed companies in China