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About Diaan-Yi

Diaan-Yi is a leader in our Public Sector, Private Equity, and Infrastructure Practices in Asia, and helps direct our work with sovereign wealth funds in the region. Based in Singapore, she has worked extensively with government entities and government-linked companies across Asia, particularly on the design and implementation of large-scale programs to drive performance transformation and economic development. She also specializes in setting up efficient and effective public-private partnerships.

Diaan-Yi is an expert in building alignment among multiple government entities. Examples of her recent projects include advising an Asian government on detailed implementation plans to transform its pre-primary school system, supporting a public-sector institution on a major portfolio-management effort, and helping to develop a public-private partnership to increase employability among students and graduates. In addition to her public-sector work, she has served clients in many industries—including financial services, telecommunications, logistics, energy, and retail—on a range of issues such as strategy, corporate governance, and corporate finance.

Before joining McKinsey in 2002, Diaan-Yi worked as an investment banker at Credit Suisse First Boston in New York and London. She was a core member of the equity private placements group, responsible for securing mandates, marketing transactions to potential investors, and structuring and pricing equity transactions for companies that required growth capital.

Diaan-Yi holds an MA in Law with honors from University of Cambridge, where she was a Cambridge Commonwealth Trust Scholar and received the Dr. Cooper’s Law Studentship for academic excellence. As a Fulbright Scholar, she obtained an MBA with distinction from Harvard Business School.

Published work

Implementing a citizen-centric approach to delivering government services,” McKinsey & Company, July 2015

Infrastructure productivity: How to save $1 trillion a year,” McKinsey Global Institute, January 2013

Improving performance at state-owned enterprises,” McKinsey Quarterly, May 2009

Past experience
Credit Suisse First Boston Investment banker
Barclays de Zoete Wedd Analyst
Harvard Business School MBA
University of Cambridge (Trinity Hall) BA, MA in Law

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