Monetary Policy Under Uncertainty

This book provides a thorough survey of the model-based literature on optimal monetary in a stochastic setting. The survey begins with the literature of the 1970s which focused on the information problem in policy design and extends to the New Keynesian approach of the 1990s which centered on evaluating alternative targeting strategies. New to the second edition is consideration of research since the world financial crisis on the role of financial markets and institutions in the conduct of monetary policy.

This textbook provides an introduction to modern monetary economics for advanced undergraduates, highlighting the lessons learned from the recent financial crisis. The book presents both the core New Keynesian model and recent advances, taking into account financial frictions, and discusses recent research on an intuitive level based on simple static and two-period models, but also prepares readers for an extension to a truly dynamic analysis. Further, it offers a systematic perspective on monetary policy, covering a wide range of models to help readers gain a better understanding of controversial issues. Part I examines the long-run perspective, addressing classical monetary policy issues such as determination of the price level and interaction between monetary and fiscal policy. Part II introduces the core New Keynesian model, characterizing optimal monetary policy to stabilize short-term shocks. It discusses rules vs. discretion and the challenges arising from control errors, imperfect information and robustness issues. It also analyzes optimal control in the presence of an effective lower bound. Part III focuses on modelling financial frictions. It identifies the transmission mechanisms of monetary policy via banking and introduces models with incomplete markets, principal-agent problems, maturity mismatch and leverage cycles, to show why investors’ and intermediaries’ own stakes play a key role in lending with pro-cyclical features. In addition, it presents a tractable model for handling liquidity management and demonstrates that the need to sell assets in crisis amplifies the volatility of the real economy. Lastly, the book discusses the relation between monetary policy and financial stability, addressing systemic risk and the role of macro-prudential regulation.

Alan S. Blinder offers the dual perspective of a leading academic macroeconomist who served a stint as Vice-Chairman of the Federal Reserve Board—one who practiced what he had long preached and then returned to academia to write about it. He tells central bankers how they might better incorporate academic knowledge and thinking into the conduct of monetary policy, and he tells scholars how they might reorient their research to be more attuned to reality and thus more useful to central bankers. Based on the 1996 Lionel Robbins Lectures, this readable book deals succinctly, in a nontechnical manner, with a wide variety of issues in monetary policy. The book also includes the author's suggested solution to an age-old problem in monetary theory: what it means for monetary policy to be "neutral."

Based on lectures given as part of The Stone Lectures in Economics, this book discusses the problem of formulating monetary policy in practice, under the uncertain circumstances which characterize the real world. The first lecture highlights the limitations of decision rules suggested by the academic literature and recommends an approach involving, first, a firm reliance on the few fundamental and robust results of monetary economics and, secondly, a pragmatic attitude to policy implementation, taking into consideration lessons from central banking experience. The second lecture revisits Milton Friedman's questions about the effects of active stabilization policies on business cycle fluctuations. It explores the implications of a simple model where the policy maker has imperfect knowledge about potential output and the private sector forms expectations according to adaptive learning. This lecture shows that imperfect knowledge limits the scope for active stabilization policy and strengthens the case for conservatism.

Oliver Sauter analyzes three aspects of monetary policy under uncertainty. First he shows that the terms risk and uncertainty are often wrongly used as synonyms despite their different meanings. The second aspect is the proper examination and incorporation of uncertainty into a monetary policy framework. The author undertakes systematization with a closer look at each identified form of uncertainty. Thirdly, he focuses on the quantification of uncertainty from two different perspectives, either from a market perspective or from a central bank perspective.

Using stochastic simulations and stability analysis, the paper compares how different monetary rules perform in a moderately nonlinear model with a time-varying nonaccelerating-inflation-rate-of-unemployment (NAIRU). Rules that perform well in linear models but implicitly embody backward-looking measures of real interest rates (such as conventional Taylor rules) or substantial interest rate smoothing perform very poorly in models with moderate nonlinearities, particularly when policymakers tend to make serially correlated errors in estimating the NAIRU. This challenges the practice of evaluating rules within linear models, in which the consequences of responding myopically to significant overheating are extremely unrealistic.

This timely volume presents the latest thinking on the monetary policy rules and seeks to determine just what types of rules and policy guidelines function best. A unique cooperative research effort that allowed contributors to evaluate different policy rules using their own specific approaches, this collection presents their striking findings on the potential response of interest rates to an array of variables, including alterations in the rates of inflation, unemployment, and exchange. Monetary Policy Rules illustrates that simple policy rules are more robust and more efficient than complex rules with multiple variables. A state-of-the-art appraisal of the fundamental issues facing the Federal Reserve Board and other central banks, Monetary Policy Rules is essential reading for economic analysts and policymakers alike.

One of the most difficult challenges facing central banks is how to conduct monetary policy in an uncertain economic environment. This challenge is magnified when ongoing changes in the structure of the economy make economic models and forecasts less reliable. How should policymakers act in an environment of increased uncertainty? Should they be more cautious and wait for additional information about the economy that might reduce uncertainty? Or, should they react more aggressively in an attempt to keep the economy on course? In designing monetary policy in an uncertain world, how much should policymakers depend on formal rules, and how much should they rely on judgment? To address these questions, the Federal Reserve Bank of Kansas City sponsored a symposium, titled, "Monetary Policy and Uncertainty: Adapting to a Changing Economy," at Jackson Hole, Wyoming, on August 28-30, 2003. The symposium brought together a distinguished group of central bank officials, academic economists, and business economists to discuss and debate these issues. Over the years, the Jackson Hole symposium has provided a forum for the exchange of ideas on important public policy issues of interest to central banks around the world. Its continuing success is due to the contributions of all those who participate, including authors, discussants, panelists, and audience members. Special thanks also go to Craig Hakkio, Gordon Sellon, and other members of the Bank's Research Division who developed this year's program. Thomas M. Hoenig President and Chief Executive Officer Federal Reserve Bank of Kansas City