Co-founder of Hazel Analytics, a company that promotes open-government data.
Hazel partnered with Yelp to disseminate restaurant hygiene inspection outcomes for 700,000 restaurants in 48 states of US and the Toronto and Vancouver areas of Canada.
Yelp blog (03/31/2022), related news on Techcrunch, Adweek, Chicago Tribune, Miami Herold, and San Antonio Current.
Digital Disclosure with a Nationally Standardized Database of Restaurant Food Safety Inspections with Phillip Leslie and Ben Bederson, funded by the Sloan Foundation.
Media coverage on foodsafetynews.com, Maryland press release
Senior Consultant, Compass Lexecon, since February 2025.
Independent consultant for tech companies in and out of US.
Academic Advisor, Brattle Group, from June 2021 to February 2025.
Fellow, Luohan Academy, since May 2021.
Fellow, Asian American Scholar Forum (AASF), since January 2023.
Amicus brief filed for the US Court of Appeals for the Ninth Circuit case Epic Games, Inc. vs. Google LLC, et al., December 2024, joint with Terry Calvani, Ethan Glass, Abbott (“Tad”) Lipsky, Jr., Bruce McDonald, Jeremy Sandford, Joe Sims, Mark Whitener, and Nathan Wilson, listed at https://www.courtlistener.com/docket/69269093/epic-games-inc-v-google-llc-et-al/.
Amicus brief filed for the Supreme Court case Gonzalez et al. vs. Google LLC, January 2023, joint with Steven Tadelis, Liad Wagman and Joshua D. Wright, available at https://www.supremecourt.gov/DocketPDF/21/21-1333/252708/20230119155622104_No.%2021-1333_Brief.pdf
Public comments submitted to the DOJ/FTC Request for Information on Merger Enforcement, March 2022, joint with Mario Leccese and Liad Wagman, available at https://www.regulations.gov/comment/FTC-2022-0003-0138.
Video discussion of big data on the OECD Competition Economics Workshop for Chief and Senior Economists, May 2-4, 2018 at Seoul, South Korea.
Congressional testimony on China's healthcare sector, drug quality and international trade of medical products (April 3, 2014).
Testimony for Maryland House Bill #951 in support of restaurant hygiene grade cards (March 2007).