The paper "Test of Aggregation Characteristics and Transmission Path Identification of Provincial Economic Growth Kinetic Energy in China" by Professor Liu Dayu from the Center for Quantitative Economics of Jilin University and his master's student Xiang Siyu, and Associate Professor Song Yang from the School of Finance and Taxation of Southwestern University of Finance and Economics was published as a cover article in Nankai Economic Research, No.2, 2025.