改写下面的作者简介Yu Song is a professor and doctoral supervisor in the School of Economics and Management at Northwest University He received his masters degree in economics in 1995 and his PhD degree in econ

Yu Song is a distinguished academic who holds the position of professor and doctoral supervisor at the School of Economics and Management in Northwest University. Having earned his master's and Ph.D. degrees in economics in 1995 and 2001 respectively, he was appointed as a lecturer in 1997 and later promoted to associate professor in 2002. In recognition of his scholarly achievements, he was selected as a doctoral supervisor in 2011. With extensive experience working and visiting overseas, he has undertaken research in political economy and development economics, publishing over 100 papers and numerous highly regarded articles in related fields