Dimitri Vayanos is Professor of Finance at the London School of Economics, where he also directs the Paul Woolley Centre for the Study of Capital Market Dysfunctionality. He is a Fellow of the British Academy, a Director and former Managing Editor of the Review of Economic Studies, a Research Fellow at CEPR and a former Director of its Financial Economics program, a Research Associate at NBER, and a former Director of the American Finance Association. His research focuses on financial markets, and especially on what drives market liquidity, why asset prices can differ from assets’ fundamental values, why bubbles and crises can occur, and what are appropriate regulatory and policy responses. He is a former Editor of the blog Greek Economists for Reform, one of the Editors of the book “Beyond Austerity: Reforming the Greek Economy”, and one of the authors of the European Safe Bonds (ESBies) proposal.