Reunion Speakers

Erika is Citi’s Chief Diversity, Equity and Inclusion Officer and Global Head of Talent, responsible for developing global diversity, equity and inclusion strategy and driving Citi’s agenda on talent planning, succession planning and leadership development. Prior to joining Citi, Erika was Chief Diversity Officer at Goldman Sachs from 2018 to 2021 and Global Head of Diversity and Inclusion at Bloomberg from 2015 to 2018.

As Vice President of Global Marketplace Insights at American Express, Christopher Frank leads the advertising, brand, and communications research and analytics group. Prior to joining American Express, he spent ten years at Microsoft as Senior Director in Corporate Marketing Research.

Sheena Iyengar is the ST Lee Professor of Business at CBS, where she has taught since 1998. A graduate of both Wharton and Stanford, she is one of the world's experts on choice and innovation. You may recognize her from one of her Ted Talks, which have collectively been viewed nearly seven million times. 

Nancy leads the delivery of career management services and resources to the Columbia Business School alumni community. She is an experienced leadership and transition coach and has worked in career management with experienced professionals for more than ten years. Previously, Nancy was the Director, Corporate Relations, at The University of Chicago Booth School of Business where she worked collaboratively with Booth and internal University partners to build school/university-wide strategic partnerships with corporations.

Costis Maglaras is the 16th Dean of Columbia Business School, and the David and Lyn Silfen Professor of Business at Columbia University. Costis received his BS in Electrical Engineering from Imperial College, London, in 1990, and his MS and PhD in Electrical Engineering from Stanford University in 1991 and 1998, respectively. He joined Columbia Business School in 1998, when he joined the Decision, Risk and Operations Division.

Paul has over 25 years of experience in strategic planning, new product development, acquisition integration, alliance management, and consultative sales. He is a systems thinker and business builder focused on making the complex simple, understanding where technology and innovation are headed, and helping to answer what it means for any business. In his current work with Google, he is unlocking the next generation of business value through cloud computing and related technologies.

Stephan Meier is currently the chair of the Management Division and the James P. Gorman Professor of Business at Columbia Business School. He holds a PhD in Economics from the University of Zurich, was previously a senior economist at the Center for Behavioral Economics and Decision-Making at the Federal Reserve Bank of Boston and taught courses on strategic interactions and economic policy at Harvard University and the University of Zurich. His research interest is in behavioral strategy.

Professor Netzer's expertise centers on one of the major business challenges of the data-rich environment: developing quantitative methods that leverage data to gain a deeper understanding of customer behavior and guide firms' decisions. He focuses primarily on building statistical and econometric models to measure consumer preferences and understand how customer choices change over time, and across contexts. Most notably, he has developed a framework for managing firms' customer bases through dynamic segmentation.

Robert Reffkin ’03 is an entrepreneur on a mission to help everyone find their place in the world. He was inspired to enter the world of real estate by his mother, Ruth, a longtime agent who now proudly works at Compass. Robert completed a B.A. and M.B.A. from Columbia University and worked at McKinsey, Goldman Sachs, and as a White House Fellow. He ran 50 marathons in 50 states to raise $1 million dollars for charities — including for America Needs You, the non-profit he founded to serve young people living below the poverty line who are the first in their families to go to college.

Dan Wang is Associate Professor of Business and (by courtesy) Sociology at Columbia Business School, where he is also the Co-Director of the Tamer Center for Social Enterprise.  His research examines how social networks drive social and economic transformation through the analysis of global migration, social movements, organizational innovation, and entrepreneurship. He teaches the core MBA Strategy Formulation course, an elective MBA course on Technology Strategy, a PhD seminar on Organizational Theory.

James leads the delivery of leadership and career coaching services for the Columbia Business School Executive MBA (EMBA) community. He is an International Coaching Federation (ICF-PCC) certified executive coach and advises clients on all areas of leadership development, career transition, and work-life integration. James is driven by a deep desire to help leaders see themselves with clarity and make conscious choices that positively impact their communities.