Affiliation: | Institute of Real Estate Study, Tsinghua University, Beijing 100084, P. R. China; Civil and Architectural Engineering College, Dalian University, Dalian 116622, P. R. China;Institute of Real Estate Study, Tsinghua University, Beijing 100084, P. R. China;Institute of Real Estate Study, Tsinghua University, Beijing 100084, P. R. China |