Recently, the paper “Reduced Rank Spatio-temporal Models” has been published online in the Journal of Business & Economic Statistics. This paper is co-authored by five scholars, and they are Dan Pu, a 2019 PhD graduate of the Department of Statistics and Data Science of the School of Economics, Xiamen University and currently a faculty member of the School of Statistics, Southwestern University of Finance and Economics (SWUFE), Professor Kuangnan Fang and Professor Qingzhao Zhang from the College of Economics, Xiamen University, Professor Wei Lan from SWUFE, and Professor Jihai Yu from Peking University. Journal of Business & Economic Statistics is recognized as a leading international journal of economics and statistics, and falls into category A within our college’s own tiered international journal ranking list.