1992.7 ——1993.10, School of Economics and Management, Beijing Agricultural University, lecturer (1992), associate professor (1994) and professor (1999).

1994.5—200 1.6, vice president of School of Economics and Management, Beijing Agricultural University.

1998.8 —— 1999.8, Auburn University, Senior Visiting Scholar.

200 1.6—2003.6438+00, Dean, Professor and Doctoral Supervisor, School of Economics and Management, China Agricultural University.

2003. 10—2005.7, deputy director, professor and doctoral supervisor, Institute of Agricultural Economics, China Academy of Agricultural Sciences.

2005.7-, Director of Institute of Agricultural Economics and Development, Chinese Academy of Agricultural Sciences, doctoral supervisor.