Zhang Yishan, a senior professor in the Business School at Jilin University, has been engaging in the teaching and research of quantitative economics since 1980 and has fruitful achievements in the fields of distribution economics and institutional economics. Yu Weisheng is Professor in the Business School at Jilin University. He specializes in mathematical economics, decision-making and modeling, economic game theory, and advanced operations research. Wang Guangliang is Professor in the Business School at Jilin University. He specializes in the research of enterprise contract theory and application of game theory.