Our Leaders
Tyler Yang, PhD
Founder & Chairman tyler.yang@ifegroup.com
Dr. Henry Cassidy has over 40 years of experience in the financial industry serving government and large financial institutions in support of numerous activities, including trading and asset liability management; mortgage underwriting; portfolio and credit risk management; stress testing and capital adequacy; and mortgage-related policy evaluations and research. He is the owner of three financial instrument patents. Dr. Cassidy frequently gives speeches at professional meetings and has published a textbook on econometrics in addition to numerous articles in leading economic journals. As our Chief Consultant, he actively engages on our projects, providing invaluable guidance to staff and collaborating closely with clients. Prior to IFE Group, he was a Senior Vice President at Freddie Mac, Director at the Federal Home Loan Bank Board, Senior Fellow of the Brookings Institute, and a professor at Virginia Polytechnic University and George Mason University. Dr. Cassidy received his PhD in Economics from the University of Illinois at Urbana-Champaign.
Henry Cassidy, PhD
Chief Consultant
Chijack Lin, PhD
President & CEO chijack.lin@ifegroup.com
Dr. Chijack Lin leads our outreach efforts and plays a central role in IFE Group’s projects. He has over ten years of experience in financial model development, validation, and implementation. Dr. Lin has led the development effort of various core risk management models for government agencies and leading financial institutions, including a mortgage underwriting scorecard for a US housing finance agency. He has also led the development efforts in building mortgage risk management systems, such as loan transition models, loss severity models, and macroeconomic forecast models, many of which included the implementation of sophisticated simulation methods. In addition to model development, Dr. Lin leads IFE Group’s model validation practices, specializing in credit risk systems, underwriting scorecards, automated valuation models, and banking rating scorecards. He has validated over 75 models supporting a broad array of use cases with varying degrees of complexity. Prior to IFE Group, Dr. Lin was a Senior Economist of the KPMG model validation practice. Dr. Lin received his PhD in Economics from Ohio State University.
Dr. Tyler Yang has over 35 years of experience in financial engineering and mortgage risk management. His specialties include affordable housing policies, international housing finance systems, risk-based capital, mortgage termination analytics, and fixed and structured securities. Dr. Yang is a patent owner of HAPN™, an innovative and affordable, shared equity homeownership tool. He has published numerous articles in prestigious academic journals and frequently gives speeches at professional seminars and conferences. He was ranked one of the top real estate researchers in the world over the past two decades by the Journal of Real Estate Literature. He is also active in several academic and practitioner organizations, ex-President of the Asian Real Estate Society, and co-editor of several leading real estate finance journals. Prior to founding IFE Group, Dr. Yang was Senior Director of Credit Portfolio Engineering at Freddie Mac, Director of Housing Finance at PricewaterhouseCoopers LLP, and Senior Research Economist at Fannie Mae. He has also taught at a number of universities. Dr. Yang received his Masters of Science and PhD in Finance and a Masters in Architecture from the University of Illinois at Urbana-Champaign.
