Sjoerd van Bekkum is Professor of Finance and Economics at the Erasmus School of Economics, Erasmus University. His research agenda focuses on changes in the supply of credit that lubricates the economy, with a particular focus more recently on household finance. See for more detail his academic webpage, https://personal.eur.nl/vanbekkum/
Van Bekkum has published in the leading Finance journals including the Review of Financial Studies, the Journal of Financial Economics, and the Journal of Financial & Quantitative Analysis. He also presented his work at many academic conferences such as several AFA, EFA, SFS, and FIRS meetings, and at workshops organized by the European Central Bank, the Federal Reserve Bank of New York, and the International Monetary Fund.
S. van Bekkum, G. Baltussen & B. van der Grient (2018). Unknown Unknowns: Uncertainty About Risk and Stock Returns. Journal of Financial and Quantitative Analysis, 53 (4), 1-37. doi: 10.1017/S0022109018000480