CHINESE JOURNAL OF APPLIED PROBABILITY AND STATISTICS     2010 26 (5):  501-514    ISSN: 1001-4268:  CN: 31-1256 / O1 A Semiparametric Regression Model with Structural Change Wang Chengyong,Ai Chunrong,Wang Shaoping Xiangfan University,Shanghai University of Finance and Economics,Huazhong University of Science and Technology Received null  Revised null  Online 2010-10-25 Reference   Corresponding author: Wang Chengyong