Designing a Simple Loss Function for Central Banks

Designing a Simple Loss Function for Central Banks

Author: Davide Debortoli

Publisher: International Monetary Fund

Published: 2017-07-21

Total Pages: 56

ISBN-13: 1484311752

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Yes, it makes a lot of sense. This paper studies how to design simple loss functions for central banks, as parsimonious approximations to social welfare. We show, both analytically and quantitatively, that simple loss functions should feature a high weight on measures of economic activity, sometimes even larger than the weight on inflation. Two main factors drive our result. First, stabilizing economic activity also stabilizes other welfare relevant variables. Second, the estimated model features mitigated inflation distortions due to a low elasticity of substitution between monopolistic goods and a low interest rate sensitivity of demand. The result holds up in the presence of measurement errors, with large shocks that generate a trade-off between stabilizing inflation and resource utilization, and also when ensuring a low probability of hitting the zero lower bound on interest rates.


NBER Macroeconomics Annual 2005

NBER Macroeconomics Annual 2005

Author: Kenneth S. Rogoff

Publisher: MIT Press

Published: 2006-04

Total Pages: 479

ISBN-13: 0262072726

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The 20th NBER Macroeconomics Annual, covering questions at the cutting edge of macroeconomics that are central to current policy debates.


Monetary and Macroprudential Policy Rules in a Model with House Price Booms

Monetary and Macroprudential Policy Rules in a Model with House Price Booms

Author: Mr.Pau Rabanal

Publisher: International Monetary Fund

Published: 2009-11-01

Total Pages: 38

ISBN-13: 1451873980

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We argue that a stronger emphasis on macrofinancial risk could provide stabilization benefits. Simulations results suggest that strong monetary reactions to accelerator mechanisms that push up credit growth and asset prices could help macroeconomic stability. In addition, using a macroprudential instrument designed specifically to dampen credit market cycles would also be useful. But invariant and rigid policy responses raise the risk of policy errors that could lower, not raise, macroeconomic stability. Hence, discretion would be required.


Hysteresis and Business Cycles

Hysteresis and Business Cycles

Author: Ms.Valerie Cerra

Publisher: International Monetary Fund

Published: 2020-05-29

Total Pages: 50

ISBN-13: 1513536990

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Traditionally, economic growth and business cycles have been treated independently. However, the dependence of GDP levels on its history of shocks, what economists refer to as “hysteresis,” argues for unifying the analysis of growth and cycles. In this paper, we review the recent empirical and theoretical literature that motivate this paradigm shift. The renewed interest in hysteresis has been sparked by the persistence of the Global Financial Crisis and fears of a slow recovery from the Covid-19 crisis. The findings of the recent literature have far-reaching conceptual and policy implications. In recessions, monetary and fiscal policies need to be more active to avoid the permanent scars of a downturn. And in good times, running a high-pressure economy could have permanent positive effects.


Monetary Policy, Inflation, and the Business Cycle

Monetary Policy, Inflation, and the Business Cycle

Author: Jordi Galí

Publisher: Princeton University Press

Published: 2015-06-09

Total Pages: 295

ISBN-13: 1400866278

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The classic introduction to the New Keynesian economic model This revised second edition of Monetary Policy, Inflation, and the Business Cycle provides a rigorous graduate-level introduction to the New Keynesian framework and its applications to monetary policy. The New Keynesian framework is the workhorse for the analysis of monetary policy and its implications for inflation, economic fluctuations, and welfare. A backbone of the new generation of medium-scale models under development at major central banks and international policy institutions, the framework provides the theoretical underpinnings for the price stability–oriented strategies adopted by most central banks in the industrialized world. Using a canonical version of the New Keynesian model as a reference, Jordi Galí explores various issues pertaining to monetary policy's design, including optimal monetary policy and the desirability of simple policy rules. He analyzes several extensions of the baseline model, allowing for cost-push shocks, nominal wage rigidities, and open economy factors. In each case, the effects on monetary policy are addressed, with emphasis on the desirability of inflation-targeting policies. New material includes the zero lower bound on nominal interest rates and an analysis of unemployment’s significance for monetary policy. The most up-to-date introduction to the New Keynesian framework available A single benchmark model used throughout New materials and exercises included An ideal resource for graduate students, researchers, and market analysts


Evolving Monetary Policy Frameworks in Low-Income and Other Developing Countries

Evolving Monetary Policy Frameworks in Low-Income and Other Developing Countries

Author: International Monetary Fund

Publisher: International Monetary Fund

Published: 2015-10-23

Total Pages: 74

ISBN-13: 1498344062

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Over the past two decades, many low- and lower-middle income countries (LLMICs) have improved control over fiscal policy, liberalized and deepened financial markets, and stabilized inflation at moderate levels. Monetary policy frameworks that have helped achieve these ends are being challenged by continued financial development and increased exposure to global capital markets. Many policymakers aspire to move beyond the basics of stability to implement monetary policy frameworks that better anchor inflation and promote macroeconomic stability and growth. Many of these LLMICs are thus considering and implementing improvements to their monetary policy frameworks. The recent successes of some LLMICs and the experiences of emerging and advanced economies, both early in their policy modernization process and following the global financial crisis, are valuable in identifying desirable features of such frameworks. This paper draws on those lessons to provide guidance on key elements of effective monetary policy frameworks for LLMICs.


Quantifying Systemic Risk

Quantifying Systemic Risk

Author: Joseph G. Haubrich

Publisher: University of Chicago Press

Published: 2013-01-24

Total Pages: 286

ISBN-13: 0226319288

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In the aftermath of the recent financial crisis, the federal government has pursued significant regulatory reforms, including proposals to measure and monitor systemic risk. However, there is much debate about how this might be accomplished quantitatively and objectively—or whether this is even possible. A key issue is determining the appropriate trade-offs between risk and reward from a policy and social welfare perspective given the potential negative impact of crises. One of the first books to address the challenges of measuring statistical risk from a system-wide persepective, Quantifying Systemic Risk looks at the means of measuring systemic risk and explores alternative approaches. Among the topics discussed are the challenges of tying regulations to specific quantitative measures, the effects of learning and adaptation on the evolution of the market, and the distinction between the shocks that start a crisis and the mechanisms that enable it to grow.


Financial Crises in DSGE Models

Financial Crises in DSGE Models

Author: Mr.Jaromir Benes

Publisher: International Monetary Fund

Published: 2014-04-04

Total Pages: 59

ISBN-13: 1475524986

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This paper presents the theoretical structure of MAPMOD, a new IMF model designed to study vulnerabilities associated with excessive credit expansions, and to support macroprudential policy analysis. In MAPMOD, bank loans create purchasing power that facilitates adjustments in the real economy. But excessively large and risky loans can impair balance sheets and sow the seeds of a financial crisis. Banks respond to losses through higher spreads and rapid credit cutbacks, with adverse effects for the real economy. These features allow the model to capture the basic facts of financial cycles. A companion paper studies the simulation properties of MAPMOD.


Labor and Product Market Reforms and External Imbalances: Evidence from Advanced Economies

Labor and Product Market Reforms and External Imbalances: Evidence from Advanced Economies

Author: Mr.Romain A Duval

Publisher: International Monetary Fund

Published: 2021-02-26

Total Pages: 31

ISBN-13: 1513570749

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We explore the impact of major labor and product market reforms on current account dynamics using a new “narrative” database of major changes in employment protection for regular workers and product market regulation for non-manufacturing industries covering 26 advanced economies over the past four decades. Our main finding is that product market deregulation is associated with a weakening of the current account, while labor market deregulation is associated with an improvement. These effects are transitory and driven by both saving and investment responses. Labor and product market reforms both have a more positive impact on the current account balance when implemented under weak macroeconomic conditions. Our results are broadly consistent with predictions from recent DSGE models with endogenous producer entry and labor market frictions.


Technology Shocks and Aggregate Fluctuations

Technology Shocks and Aggregate Fluctuations

Author: Mr.Pau Rabanal

Publisher: International Monetary Fund

Published: 2004-12-01

Total Pages: 68

ISBN-13: 1451875657

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Our answer: Not so well. We reached that conclusion after reviewing recent research on the role of technology as a source of economic fluctuations. The bulk of the evidence suggests a limited role for aggregate technology shocks, pointing instead to demand factors as the main force behind the strong positive comovement between output and labor input measures.