Joanna Tsai joins Cornerstone Research as vice president

28 November 2023 2 min. read
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Joanna Tsai, PhD, has joined Cornerstone Research, a San Francisco-headquartered economic and financial consulting firm, as a vice president.

Based in Washington, DC, Tsai will co-lead the firm’s merger investigations practice in that market.

Tsai is a merger economics expert with nearly 20 years of experience in consulting, government, and academia. She has advised on numerous merger reviews and joint venture transactions, and has presented economic analyses before US and international competition agencies.

Tsai works with merging parties on conducting pre-deal risk assessments, preparing for advocacy after merger filings, and handling second requests and merger litigation.

She joins Cornerstone from Charles River Associates, where she spent 10 years and was latterly a vice president. Tsai was also previously an economic advisor to the FTC commissioner and a vice president at Compass Lexecon, a subsidiary of FTI Consulting

She has doctorate and master’s degree in economics from Cornell University and a bachelor’s degree in economics from the University of California, Irvine.Joanna Tsai joins Cornerstone Research as vice president “We are delighted to welcome an expert of Joanna's experience and caliber to cohead our merger practice in Washington, DC,” said Rahul Guha, CEO of Cornerstone Research. “Her wealth of merger review expertise, wide-ranging industry knowledge, and economic acumen will be assets to our clients engaged in complex merger matters.”

Founded in 1989, Cornerstone provides economic and financial analysis and expert testimony to law firms, corporations, and government agencies involved in complex litigation and regulatory proceedings.

The firm has practices in a wide range of areas, including antitrust and competition, consumer fraud, intellectual property, international trade, securities, bankruptcy, labor and discrimination, and merger investigations.

Cornerstone has more than 800 professionals across nine offices in the US, UK, and Belgium.

"Cornerstone Research is widely recognized for its exceptional work across a range of consequential transactions," Tsai said. "I am thrilled to join the firm's superb team of merger, antitrust, and competition professionals and to apply my skills to the increasingly challenging matters that characterize today's litigation and regulatory landscape."