Yiyuan Xie - theoretical economist, mechanism design, information design

Welcome! I am an economic lecturer (education-focused) in School of Economics, UNSW. 

My research interests is primarily theoretical, include mechanism design, bargaining theory, information design, and behaviors of pricing and searching in the market context.

I am a theoretical economist with research focused on the institutional boundaries of property rights under private information. My work develops a unified framework connecting mechanism design, information structure, and decentralized bargaining, and reinterprets classic inefficiency results through the lens of institutional authority and implementation constraints. 

My teaching encompasses a range of theoretical economics courses, the course I taught for the longest time is ECON3107 Economics of Finance, but I regularly teach a range of other courses, such as ECON5103 Business Economics, ECON3208 Applied Econometrics, COMM5005 Quantitative Method for Business. I am also coordinating lecturer for a range of courses offered jointly by School of Economics and other schools, including DATA1001 Introduction to Data Science and Decisions, DATA3003 Data Science and Decision in Practice, and ZZBU6501 Introductory Data Analysis. Previously, I taught ECON5130 Financial System and the Economy,  ECON 2101 Macro I, ECON2102 Macro II and ECON3101 Markets with Frictions.

I constantly attend and present my papers at world-class conference, including AMES-CSW 2026, EWMES 2025, WAMS and LAEF 2015-2017, Singapore Search and Matching Workshop 2014, Chicago Fed Summer Workshop on Money, Banking, Payments and Finance 2013.

I won the "Best Discussant Award" in WAMS and LAEF conference 2015.  I was president of Economic Research Student Association, UNSW in 2013-2014.