Professor Ralph SJ Koijen’s areas of expertise include investments, insurance markets, and financial econometrics. In addition to being Professor of Finance at London Business School (LBS), he is a Research Fellow of the Network for Studies on Pensions, Ageing and Retirement.
Before joining LBS, Ralph was a visiting assistant professor of finance at New York University’s Stern and an assistant and associate professor of finance at the University of Chicago’s Booth School of Business.
Ralph's research has been published in leading journals, such as The Journal of Finance, the Review of Financial Studies, the Journal of Financial Economics, and the American Economic Review. He has also given numerous seminars worldwide.