Download or read book Linear quadratic Approximation of Optimal Policy Problems written by Pierpaolo Benigno and published by . This book was released on 2006 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: We consider a general class of nonlinear optimal policy problems involving forward-looking constraints (such as the Euler equations that are typically present as structural equations in DSGE models), and show that it is possible, under regularity conditions that are straightforward to check, to derive a problem with linear constraints and a quadratic objective that approximates the exact problem. The LQ approximate problem is computationally simple to solve, even in the case of moderately large state spaces and flexibly parameterized disturbance processes, and its solution represents a local linear approximation to the optimal policy for the exact model in the case that stochastic disturbances are small enough. We derive the second-order conditions that must be satisfied in order for the LQ problem to have a solution, and show that these are stronger, in general, than those required for LQ problems without forward-looking constraints. We also show how the same linear approximations to the model structural equations and quadratic approximation to the exact welfare measure can be used to correctly rank alternative simple policy rules, again in the case of small enough shocks.
Download or read book Linear Quadratic Approximation of Optimal Policy Problems written by Pierpaolo Benigno and published by . This book was released on 2010 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: We consider a general class of nonlinear optimal policy problems involving forward-looking constraints (such as the Euler equations that are typically present as structural equations in DSGE models), and show that it is possible, under regularity conditions that are straightforward to check, to derive a problem with linear constraints and a quadratic objective that approximates the exact problem. The LQ approximate problem is computationally simple to solve, even in the case of moderately large state spaces and flexibly parameterized disturbance processes, and its solution represents a local linear approximation to the optimal policy for the exact model in the case that stochastic disturbances are small enough. We derive the second-order conditions that must be satisfied in order for the LQ problem to have a solution, and show that these are stronger, in general, than those required for LQ problems without forward-looking constraints. We also show how the same linear approximations to the model structural equations and quadratic approximation to the exact welfare measure can be used to correctly rank alternative simple policy rules, again in the case of small enough shocks.
Download or read book Linear quadratic Approximation to Unconditionally Optimal Policy written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimal Monetary and Fiscal Policy written by Pierpaolo Benigno and published by . This book was released on 2003 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: We propose an integrated treatment of the problems of optimal monetary and fiscal policy, for an economy in which prices are sticky and the only available sources of government revenue are distorting taxes. Our linear-quadratic approach allows us to nest both conventional analyses of optimal monetary stabilization policy and analyses of optimal tax-smoothing as special cases of our more general framework. We show how a linear-quadratic policy problem can be derived which yields a correct linear approximation to the optimal policy rules from the point of view of the maximization of expected discounted utility in a dynamic stochastic general-equilibrium model. Finally, we derive targeting rules through which the monetary and fiscal authorities may implement the optimal equilibrium
Download or read book Optimal Fiscal and Monetary Policy Debt Crisis and Management written by Mr.Cristiano Cantore and published by International Monetary Fund. This book was released on 2017-03-30 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The initial government debt-to-GDP ratio and the government’s commitment play a pivotal role in determining the welfare-optimal speed of fiscal consolidation in the management of a debt crisis. Under commitment, for low or moderate initial government debt-to-GPD ratios, the optimal consolidation is very slow. A faster pace is optimal when the economy starts from a high level of public debt implying high sovereign risk premia, unless these are suppressed via a bailout by official creditors. Under discretion, the cost of not being able to commit is reflected into a quick consolidation of government debt. Simple monetary-fiscal rules with passive fiscal policy, designed for an environment with “normal shocks”, perform reasonably well in mimicking the Ramsey-optimal response to one-off government debt shocks. When the government can issue also long-term bonds–under commitment–the optimal debt consolidation pace is slower than in the case of short-term bonds only, and entails an increase in the ratio between long and short-term bonds.
Download or read book NBER Macroeconomics Annual 2003 written by Mark Gertler and published by Mit Press. This book was released on 2004 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NBER Macroeconomics Annual presents pioneering work in macroeconomics by leading academic researchers to an audience of public policymakers and the academic community. Each commissioned paper is followed by comments and discussion. This year's edition provides a mix of cutting-edge research and policy analysis on such topics as productivity and information technology, the increase in wealth inequality, behavioral economics, and inflation.
Download or read book Macroeconomic Paradigms and Economic Policy written by Nicola Acocella and published by Cambridge University Press. This book was released on 2016-06-09 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of macroeconomic policy, focusing on the relationship between free-market policies and government intervention.
Download or read book Designing a Simple Loss Function for Central Banks written by Davide Debortoli and published by International Monetary Fund. This book was released on 2017-07-19 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book solution approximation in infinite horizon linear quadratic control written by irwin e. schochetman and published by . This book was released on 1991 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Theory of Economic Policy in a Strategic Context written by Nicola Acocella and published by Cambridge University Press. This book was released on 2013 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new unified theory of economic policy which responds to conflicts between strategic public and private policymakers.
Download or read book Optimal Control written by Brian D. O. Anderson and published by Courier Corporation. This book was released on 2007-02-27 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous examples highlight this treatment of the use of linear quadratic Gaussian methods for control system design. It explores linear optimal control theory from an engineering viewpoint, with illustrations of practical applications. Key topics include loop-recovery techniques, frequency shaping, and controller reduction. Numerous examples and complete solutions. 1990 edition.
Download or read book Handbook of Monetary Economics written by Benjamin M. Friedman and published by Elsevier. This book was released on 2010-11-16 with total page 971 pages. Available in PDF, EPUB and Kindle. Book excerpt: "What tools are available for setting and analyzing monetary policy? World-renowned contributors examine recent evidence on subjects as varied as price-setting, inflation persistence, the private sector's formation of inflation expectations, and the monetary policy transmission mechanism. Stopping short of advocating conclusions about the ideal conduct of policy, the authors focus instead on analytical methods and the changing interactions among the ingredients and properties that inform monetary models. The influences between economic performance and monetary policy regimes can be both grand and muted, and this volume clarifies the present state of this continually evolving relationship." [source : 4e de couv.].
Download or read book Optimal Fiscal Adjustment under Uncertainty written by Rossen Rozenov and published by International Monetary Fund. This book was released on 2016-03-17 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper offers a non-probabilistic framework for representation of uncertainty in the context of a simple linear-quadratic model of fiscal adjustment. Instead of treating model disturbances as random variables with known probability distributions, it is only assumed that they belong to some pre-specified compact set. Such an approach is appropriate when the decision maker does not have enough information to form probabilistic beliefs or when considerations for robustness are important. Solution of the model in the minimax sense when disturbance sets are ellipsoids is obtained and the application of the method is illustrated using the example of Portugal.
Download or read book Handbook of Monetary Economics Vols 3A 3B Set written by Benjamin M. Friedman and published by Newnes. This book was released on 1990 with total page 1729 pages. Available in PDF, EPUB and Kindle. Book excerpt: How have monetary policies matured during the last decade? The recent downturn in economies worldwide have put monetary policies in a new spotlight. In addition to their investigations of new tools, models, and assumptions, they look carefully at recent evidence on subjects as varied as price-setting, inflation persistence, the private sector's formation of inflation expectations, and the monetary policy transmission mechanism. They also reexamine standard presumptions about the rationality of asset markets and other fundamentals. Stopping short of advocating conclusions about the ideal conduct of policy, the authors focus instead on analytical methods and the changing interactions among the ingredients and properties that inform monetary models. The influences between economic performance and monetary policy regimes can be both grand and muted, and this volume clarifies the present state of this continually evolving relationship. Presents extensive coverage of monetary policy theories with an eye toward questions raised by the recent financial crisis Explores the policies and practices used in formulating and transmitting monetary policies Questions fiscal-monetary connnections and encourages new thinking about the business cycle itself Observes changes in the formulation of monetary policies over the last 25 years
Download or read book Macroeconomic Policy in Fragile States written by Ralph Chami and published by Oxford University Press. This book was released on 2021-01-26 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Setting macroeconomic policy is especially difficult in fragile states. Political legitimacy concerns are heightened, raising issues such as who the policymakers are, what incentives they face, and how the process of policymaking is likely to work under limited legitimacy and high uncertainty both about the macroeconomic environment as well as policy effectiveness. In addition, fragility expands the range of policy objectives in ways that may constrain the attainment of standard macroeconomic objectives. Specifically, in the context of fragility policymakers also need to focus on measures to mitigate fragility itself - i.e., they need to address issues such as regional and ethnic economic disparities, youth unemployment, and food price inflation. Socio-political developments around the world have thus pushed policymakers to broaden their toolkit to improve the effectiveness of macroeconomic management in the face of these constraints. The chapters in Macroeconomic Policy in Fragile States address these issues, both by giving an analytical context from which policymakers can build to answer the questions they face in fragile situations as well as by providing lessons drawn from empirical analyses and case studies. The first section of the volume discusses the interactions between political economy considerations and macroeconomic policymaking. The second section covers the private sector environment in fragile states. The third section focuses on macroeconomic policy, especially fiscal policy, monetary policy, exchange rate policy, external flows, and aid effectiveness. The last section explains the role of the IMF in fragile states and concludes by presenting case studies from the Middle East and from Sub-Saharan Africa. The contributors to the volume are economists and political scientists from academia as well as policymakers from international organizations and from countries affected by fragility.
Download or read book International Dimensions of Monetary Policy written by Jordi Galí and published by University of Chicago Press. This book was released on 2010-03-15 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: United States monetary policy has traditionally been modeled under the assumption that the domestic economy is immune to international factors and exogenous shocks. Such an assumption is increasingly unrealistic in the age of integrated capital markets, tightened links between national economies, and reduced trading costs. International Dimensions of Monetary Policy brings together fresh research to address the repercussions of the continuing evolution toward globalization for the conduct of monetary policy. In this comprehensive book, the authors examine the real and potential effects of increased openness and exposure to international economic dynamics from a variety of perspectives. Their findings reveal that central banks continue to influence decisively domestic economic outcomes—even inflation—suggesting that international factors may have a limited role in national performance. International Dimensions of Monetary Policy will lead the way in analyzing monetary policy measures in complex economies.
Download or read book Output Gap in Presence of Financial Frictions and Monetary Policy Trade offs written by Francesco Furlanetto and published by International Monetary Fund. This book was released on 2014-07-18 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent global financial crisis illustrates that financial frictions are a significant source of volatility in the economy. This paper investigates monetary policy stabilization in an environment where financial frictions are a relevant source of macroeconomic fluctuation. We derive a measure of output gap that accounts for frictions in financial market. Furthermore we illustrate that, in the presence of financial frictions, a benevolent central bank faces a substantial trade-off between nominal and real stabilization; optimal monetary policy significantly reduces fluctuations in price and wage inflations but fails to alleviate the output gap volatility. This suggests a role for macroprudential policies.
