Pre-crisis, monetary policy in the advanced economies was essentially defined by inflation targets and a key instrument, the interest rate. In parallel, the goal of financial stability was chiefly addressed with microprudential regulation and supervision. This framework was broadly consistent with the goal of economic growth, given that the control of inflation was 3/7  estimated to be the best means for ensuring the economy drew closer to its potential growth. The crisis showed that this framework was no longer valid. The control of inflation, though it remains a necessary condition, is not sufficient to ensure growth; and microprudential regulation was no longer effective, in or of itself, for guaranteeing financial stability. As a result, central banks have adapted their policies, which are now more complex in terms of objectives and instruments. Monetary policy has had to face up to the problem of what is known as the “zero bound” on interest rates. Basically, this is the situation that Keynes coined the “liquidity trap”: interest rates close to zero cease to be an effective monetary policy instrument. This has led to the development of new instruments, so-called “unconventional monetary policy”, which mainly includes quantitative easing, private and public-sector financial asset purchases, and the explanation and signalling of the monetary policy to be applied in the future, namely “forward guidance”. The outcome has been a large increase – four- or fivefold – in the balance sheet of the main economies’ central banks.
But, above all, I feel a great responsibility at having inherited the enormous legacy of an institution with the history, functions and position in the Spanish economy of the Banco de España. I wish to begin this new stage thanking those people who have steered my career over the years. I have learnt from all of them and their teachings have been a source of wealth for me. My sincere thanks to all of them. Thanks, of course, to José Luis Malo de Molina, under whose leadership of the Research Department I have pursued most of my career, and, among others, Eloísa Ortega and José María Bonilla. They were most forthcoming with their trust and have, at different times, been a major source of guidance and support for me. Thanks also to Fernando Restoy, above all for being a point of reference in terms of competence and dedication to public service. Thanks especially to José Manuel González Páramo, who oversaw my Ph.D. and took me to Frankfurt. That experience gave me, early on, a first-hand view of the work of the European Central Bank and of the Banco España’s potential as a member of the Eurosystem. Naturally, my greatest gratitude is to Governor Luis María Linde for naming me Director General for Economics, Statistics and Research almost two and a half years ago. That was, unquestionably, the necessary step for taking me to where I am today. 3/5  Thank you, Governor, for your constant support over this period.