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Leopold von Thadden
Monetary Policy
- Division
Monetary Policy Strategy
- Current Position
-
Senior Lead Economist
- Fields of interest
-
Macroeconomics and Monetary Economics,Public Economics
- Other current responsibilities
Principal Economist, Monetary Policy Strategy Division
- Education
Freie Universität Berlin; Duke University; London School of Economics; Otto-von-Guericke- Universität Magdeburg
- Professional experience
Deutsche Bundesbank, 1998-2004
European Central Bank, since 2004
Visiting Professor, Macroeconomics, Johannes Gutenberg-Universität Mainz, 2011-2014
- Teaching experience
Courses in Macroeconomics and Monetary Economics: Bachelor, Master, PhD-level (Universität Mainz)
Graduate courses at GSEFM, Goethe Universität Frankfurt
- 1 February 2024
- OCCASIONAL PAPER SERIES - No. 337Details
- Abstract
- In the low inflation and low interest rate environment that prevailed over the period 2013-2020, many argued that besides expansionary monetary policy, expansionary fiscal policy could also support central banks’ efforts to bring inflation closer to target. During the pandemic, proper alignment of fiscal and monetary policy was again crucial in promoting a rapid macroeconomic recovery. Since the end of 2021 an environment of higher inflation, lower growth, higher uncertainty, and higher interest rates has changed the nature of the required policy mix and poses different challenges to the interaction between monetary and fiscal policy. Following up on the work done under the ECB’s 2020 strategy review (see Debrun et al., 2021), this report explores some of the renewed challenges to monetary and fiscal policy interactions in an environment of high inflation. The main general conclusion is that, with an independent monetary policy that aims to bring inflation back to target in a timely manner, it is still possible to design fiscal policy in a way that protects vulnerable parts of society against the costs of high inflation without pulling against the central bank’s effort to tame inflation. This is more likely to be the case if fiscal measures are temporary and targeted, and if priority is given to structural reforms and public investment in support of potential growth. The latter is particularly effective in reshaping the supply side of the economy in a manner that is likely to have a lasting positive structural impact.
- JEL Code
- E22 : Macroeconomics and Monetary Economics→Consumption, Saving, Production, Investment, Labor Markets, and Informal Economy→Capital, Investment, Capacity
E52 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Monetary Policy
E58 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Central Banks and Their Policies
E62 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Fiscal Policy
- 21 September 2021
- OCCASIONAL PAPER SERIES - No. 273Details
- Abstract
- The last review of the ECB’s monetary policy strategy in 2003 followed a period of predominantly upside risks to price stability. Experience following the 2008 financial crisis has focused renewed attention on the question of how monetary and fiscal policy should best interact, in particular in an environment of structurally low interest rates and persistent downside risks to price stability. This debate has been further intensified by the economic impact of the coronavirus (COVID-19) pandemic. In the euro area, the unique architecture of a monetary union consisting of sovereign Member States, with cross-country heterogeneities and weaknesses in its overall construction, poses important challenges. Against this background, this report revisits monetary-fiscal policy interactions in the euro area from a monetary policy perspective and with a focus on the ramifications for price stability and maintaining central bank independence and credibility. The report consists of three parts. The first chapter presents a conceptual framework for thinking about monetary-fiscal policy interactions, thereby setting the stage for a discussion of specifically euro area aspects and challenges in subsequent parts of the report. In particular, it reviews the main ingredients of the pre-global financial crisis consensus on monetary-fiscal policy interactions and addresses significant new insights and refinements which have gained prominence since 2003. In doing so, the chapter distinguishes between general conceptual aspects – i.e. those aspects that pertain to an environment characterised by a single central bank and a single fiscal authority and those aspects that pertain to an environment characterised by a single central bank and many fiscal authorities (a multi-country monetary union). ...
- JEL Code
- E52 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Monetary Policy
E58 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Central Banks and Their Policies
E62 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Fiscal Policy
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
F45 : International Economics→Macroeconomic Aspects of International Trade and Finance
- 26 June 2018
- RESEARCH BULLETIN - No. 47Details
- Abstract
- In response to the global financial crisis the central banks of many advanced economies have adopted large-scale asset purchase programmes, with particular prominence given to purchases of sovereign debt. These programmes – often labelled as quantitative easing or QE – are intended to overcome the lower-bound constraint on short-term interest rates in an environment of persistently low inflation rates. This article offers a conceptual perspective on a number of design issues of QE that are specific to monetary unions. In general, design options for QE depend on the degree of institutional completeness of a monetary union. This is illustrated with findings from a stylised model of a monetary union which assumes an environment in which the central bank can always be assured that national fiscal policies are sustainable. Such setting is conducive to a particularly effective design of QE.
- JEL Code
- E43 : Macroeconomics and Monetary Economics→Money and Interest Rates→Interest Rates: Determination, Term Structure, and Effects
E52 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Monetary Policy
E61 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Policy Objectives, Policy Designs and Consistency, Policy Coordination
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
- 5 June 2018
- WORKING PAPER SERIES - No. 2156Details
- Abstract
- This paper develops a tractable model of a monetary union with a sound fiscal governance structure and shows how in such environment the design of monetary policy above and at the lower bound constraint on short-term interest rates can be linked to well-known findings from the literature dealing with single closed economies. The model adds a portfolio balance channel to a New Keynesian two-country model of a monetary union. If the monetary union is symmetric and the portfolio balance channel is not active, the model becomes isomorphic to the canonical New Keynesian three-equation economy in which central bank purchases of long-term debt (QE) at the lower bound are ineffective. If the portfolio balance channel is active, QE becomes effective and we prove that for sufficiently small shocks there exists an interest rate rule augmented by QE at the lower bound which replicates the equilibrium allocation and the welfare level of a hypothetically unconstrained economy. Shocks large enough to push the whole yield curve to the lower bound require, in addition, forward guidance. We generalise these results to an asymmetric monetary union and illustrate them through simulations, distinguishing between asymmetric shocks and asymmetric structures. In general, asymmetries give rise to current account imbalances which are, depending on the degree of financial integration, funded by private capital imports or through the central bank balance sheet channel. Moreover, our findings support that at the lower bound, as long as asymmetries between countries result from shocks, outcomes under an unconstrained policy rule can be replicated via a symmetric QE design. By contrast, asymmetric structures of the countries which matter for the transmission of monetary policy can translate into an asymmetric QE design.
- JEL Code
- E43 : Macroeconomics and Monetary Economics→Money and Interest Rates→Interest Rates: Determination, Term Structure, and Effects
E52 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Monetary Policy
E61 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Policy Objectives, Policy Designs and Consistency, Policy Coordination
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
- 2 December 2010
- WORKING PAPER SERIES - No. 1273Details
- Abstract
- This paper develops a small-scale DSGE model which embeds a demographic structure within a monetary policy framework. We extend the tractable, though non-monetary overlapping-generations model of Gertler (1999) and present a small synthesis model which combines the set-up of Gertler with a New-Keynesian structure, implying that the short-run dynamics related to monetary policy are similar to the paradigm summarized in Woodford (2003). In sum, the model offers a New-Keynesian platform which can be used to investigate in a closed economy set-up the response of macroeconomic variables to demographic shocks, similar to technology, government spending or monetary policy shocks. Empirically, we use a calibrated version of the model to discuss a number of macroeconomic scenarios for the euro area with a horizon of around 20 years. The main finding is that demographic changes, while contributing slowly over time to a decline in the equilibrium interest rate, are not visible enough within the time horizon relevant for monetary policy-making to require monetary policy reactions.
- JEL Code
- D58 : Microeconomics→General Equilibrium and Disequilibrium→Computable and Other Applied General Equilibrium Models
E21 : Macroeconomics and Monetary Economics→Consumption, Saving, Production, Investment, Labor Markets, and Informal Economy→Consumption, Saving, Wealth
E50 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→General
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
- 14 October 2009
- WORKING PAPER SERIES - No. 1097Details
- Abstract
- In recent years a number of European countries have shifted their tax structure more strongly towards indirect taxes, motivated, inter alia, by the intention to foster competitiveness. Against this background, this paper develops a tractable two-country model of a monetary union, characterised by national fiscal and supranational monetary policy, with price-setting firms and endogenously determined terms of trade. The paper discusses a number of monetary and fiscal policy questions which emerge if one of the countries shifts its tax structure more strongly towards indirect taxes. Qualitatively, it is shown that the long-run effects of such a unilateral policy shift on output and consumption within and between the two countries depend sensitively on whether indirect tax revenues are used to lower direct taxes or to finance additional government expenditures. Moreover, short-run dynamics are shown to depend significantly on the speed at which fiscal adjustments take place, on the choice of the inflation index stabilised by the central bank, and on whether the tax shift is anticipated or not. Quantitatively, the calibrated model version indicates that only if the additional indirect tax revenues are used to finance a cut in direct taxes there is some, though limited scope for non-negligible spillovers between countries.
- JEL Code
- E61 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Policy Objectives, Policy Designs and Consistency, Policy Coordination
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
F42 : International Economics→Macroeconomic Aspects of International Trade and Finance→International Policy Coordination and Transmission
- 31 March 2008
- WORKING PAPER SERIES - No. 880Details
- Abstract
- This paper offers a framework to study commitment and cooperation issues in games with multiple policymakers. To reconcile some puzzles in the recent literature on the nature of policy interactions among nations, we prove that games characterized by different commitment and cooperation schemes can admit the same equilibrium outcome if certain spillover effects vanish at the common solution of these games. We provide a detailed discussion of these spillovers, showing that, in general, commitment and cooperation are non-trivial issues. Yet, in linear-quadratic models with multiple policymakers commitment and cooperation schemes are shown to become irrelevant under certain assumptions. The framework is suficiently general to cover a broad range of results from the recent literature on policy interactions as special cases, both within monetary unions and among fully sovereign nations.
- JEL Code
- E52 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Monetary Policy
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
- 27 June 2006
- WORKING PAPER SERIES - No. 649Details
- Abstract
- This paper develops a small New Keynesian model with capital accumulation and government debt dynamics. The paper discusses the design of simple monetary and fiscal policy rules consistent with determinate equilibrium dynamics in the absence of Ricardian equivalence. Under this assumption, government debt turns into a relevant state variable which needs to be accounted for in the analysis of equilibrium dynamics. The key analytical finding is that without explicit reference to the level of government debt it is not possible to infer how strongly the monetary and fiscal instruments should be used to ensure determinate equilibrium dynamics. Specifically, we identify in our model discontinuities associated with threshold values of steady-state debt, leading to qualitative changes in the local determinacy requirements. These features extend the logic of Leeper (1991) to an environment in which fiscal policy is non-neutral. Naturally, this non-neutrality increases the importance of fiscal aspects for the design of policy rules consistent with determinate dynamics.
- JEL Code
- E52 : Macroeconomics and Monetary Economics→Monetary Policy, Central Banking, and the Supply of Money and Credit→Monetary Policy
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
- 16 January 2006
- WORKING PAPER SERIES - No. 577Details
- Abstract
- This paper considers the nominal and real determinacy of equilibria under an exogenously specified path of interest rates in an economy in which taxation is either lump-sum or distortionary. Under lump-sum taxation, we confirm the well-known finding that equilibria display nominal (in)determinacy if the primary surplus is exogenous (endogenous). Under distortionary taxation, this classification is no longer relevant. Nominal determinacy is always ensured since distortionary taxes establish a link between the allocation and the sequences of taxes and debt and, hence, the price level, regardless of whether the primary surplus is exogenous or endogenous. Distortionary taxation, however, increases the scope for real indeterminacy. As a general feature, the real (in)determinacy of equilibria depends on the interaction of fiscal and monetary policies, i.e. on the sequences of taxes, debt, and interest rates. If, for example, fiscal policy runs a balanced budget the central bank should set the nominal interest rate in a way consistent with long-run deflation in order to ensure real determinacy. This finding is different from a balanced-budget policy under lump-sum taxes where no such qualification with respect to the interest rate needs to be made.
- JEL Code
- E31 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Price Level, Inflation, Deflation
E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
- 16 January 2006
- WORKING PAPER SERIES - No. 576Details
- Abstract
- Unstable government debt dynamics can typically be corrected by various fiscal instruments, like appropriate adjustments in government spending, public transfers, or taxes. This paper investigates properties of state-contingent debt targeting rules which link stabilizing budgetary adjustments around a target level of long-run debt to the state of the economy. The paper establishes that the size of steady-state debt is a key determinant of whether it is possible to find a rule of this type which can be implemented under all available fiscal instruments. Specifically, considering linear feedback rules, the paper demonstrates that there may well exist a critical level of debt beyond which this is no longer possible. From an applied perspective, this finding is of particular relevance in the context of a monetary union with decentralized fiscal policies. Depending on the level of long-run debt, there might be a conflict between a common fiscal framework which tracks deficit developments as a function of the state of the economy and the unrestricted choice of fiscal policy instruments at the national level.
- JEL Code
- E63 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Comparative or Joint Analysis of Fiscal and Monetary Policy, Stabilization, Treasury Policy
H62 : Public Economics→National Budget, Deficit, and Debt→Deficit, Surplus
- 2018
- Macroeconomic Dynamics (forthcoming)On the effectiveness of fiscal devaluations in a monetary union
- 2016
- Macroeconomic DynamicsInterest rate effects of demographic changes in a New-Keynesian life-cycle framework
- 2013
- Journal of International EconomicsWhen do cooperation and commitment matter in a monetary union?
- 2012
- Journal of MacroeconomicsMonetary policy rules in an OLG model with non-superneutral money
- 2010
- Journal of Public Economic TheoryDebt stabilizing fiscal rules
- 2009
- Journal of Money, Credit and BankingDistortionary taxation, debt, and the price level
- 2008
- Journal of Economic TheoryMonetary and fiscal policy interactions in a new-Keynesain model with capital accumulation and non-Ricardian consumers
- 2008
- German Economic ReviewOptimal factor taxation under wage bargaining - a dynamic perspective
- 2006
- CESifo Economic StudiesDynamic stochastic general equilibrium models as a tool for policy analysis
- 2004
- Economic JournalBudgetary policy and unemployment dynamics in an OLG model with collective wage bargaining
- 2004
- Journal of MacroeconomicsActive monetary policy, passive fiscal policy and the value of public debt: some further monetarist arithmetic
- 2003
- German Economic ReviewUnemployment, factor substitution, and capital formation
- 2002
- Oxford Economic PapersMoney, inflation, and capital formation in a model of overlapping generations with multiple means of payment
- 1999
- SpringerMoney, inflation, and capital formation. An analysis of the long run from the perspective of overlapping generations models