Xiangkun D. is an accomplished economist with extensive experience in the field. Currently serving as an Economist II at Amazon since April 2022, Xiangkun D. focuses on designing experiments and building econometric models to assess the effectiveness of Amazon's physical marketing channels. Previous roles include serving as a Teaching and Research Assistant at Binghamton University from August 2017 to January 2022, and as an Economist Intern at Amazon during the summer of 2021, where Xiangkun D. developed causal inference models to analyze anti-counterfeit policies. Additionally, Xiangkun D. held the position of Marketing Team Lead at Lumei Auto from July 2016 to June 2017. Educational qualifications include a PhD in Economics from Binghamton University, a Master of Arts in Economics from the University of Delaware, and a Bachelor's degree in Agricultural Economics from China Agricultural University.