Xinyang obtained his bachelor's and master's degrees in mathematics from Johns Hopkins. Attracted by the beauty of the general equilibrium theory, he did a doctorate study in economics at Yale. Xinyang's main research field is economic theory. He likes questions on modeling economic agents, how these agents interact in a cooperative or competitive environment, the connections between economic models, and all sorts of applications. His interests in economic theory are complemented by their mathematical correspondence, in particular, analysis.