Daniel Heller was a visiting fellow at the Peterson Institute for International Economics in 2017. Before joining the Institute, he was head of financial stability at the Swiss National Bank, head of the Secretariat of the Committee on Payment and Settlement Systems at the Bank for International Settlements, and executive director for Switzerland, Poland, Serbia, Azerbaijan, and four Central Asian republics at the International Monetary Fund. He received his PhD from the University of Bern and was a research fellow at Stanford University. His academic publications are on optimal design of bond auctions, demand for central bank money, and collateral requirements for over-the-counter (OTC) derivatives clearing. His current research focuses on the impact of emerging digital technologies such as blockchain on the financial sector, financial stability, and central banking.