• "Policy Change Index: A Simulated Example," Quantitative Notes, December 2018. Joint with Julian T. Chan.
• "Political Institutions and the Governmental Burden on Businesses," Journal of Institutional and Theoretical Economics, published online first May 2018. Joint with Ruiqing Zhong. (working paper)
• "The Candidates in Their Own Words: A Textual Analysis of 2016 Presidential Primary Debates," AEI Economic Perspectives, April 2016. (Media: Real Clear Politics)
• "To What Extent Defining a Group Predicates on Defining Other Groups?" Procedia – Social and Behavioral Sciences, March 2011. Joint with Y. Stephen Chiu.

Working Papers

• "Reading China: Predicting Policy Change with Machine Learning," AEI Economics Working Paper, No. 2018-11. Joint with Julian T. Chan. Under review.
  • Website: policychangeindex.org
  • Source code: github.com/PSLmodels/PCI
  • Selected media: Yahoo Finance, BBC, South China Morning Post, Asia Times, Hong Kong Economic Journal, Am730, JoongAng Ilbo
• "Sanctioning an Unruly Ally: Understanding Sino-North Korean Trade through the People’s Daily," AEI Economics Working Paper, No. 2017-22. Under review. (Media: The National Interest)
• "On the Observational Implications of Knightian Uncertainty," AEI Economics Working Paper, No. 2016-17. Joint with Kevin A. Hassett. Under review.
• "Governmental System and Economic Volatility in Democracies," AEI Economics Working Paper, No. 2018-06. Joint with Chen Cheng and Christopher Li. Under review.
• "A Theory of the Material Foundation of Psychology: With an Application to the Non-Salience of Economic Classes." Unpublished. Joint with Y. Stephen Chiu.

Work in Progress