Björn Imbierowicz
- 6 July 2026
- OCCASIONAL PAPER SERIES - No. 389Details
- Abstract
- This Occasional Paper reviews evidence from the ChaMP Research Network on the transmission of monetary policy to firms in the euro area. Overall, transmission to firms remains effective, including during the 2022-23 tightening cycle. However, new results show that this transmission is neither uniform nor mechanical. The pass-through from policy rates and other instruments to corporate financing conditions is shaped by multiple layers of heterogeneity that may, in some cases, have aggregate implications. Country-level segmentation, linked to sovereign risk, institutional frameworks and local lending practices, plays an important role in shaping transmission, especially during periods of stress. Beyond cross-country effects, bank balance sheets and business models also influence transmission by affecting the strength of lending responses. In particular, the composition of banks’ liabilities can lead to different speeds of transmission. Firm characteristics further differentiate the impact of monetary policy, with the funding mix playing a critical role. At the contract level, collateralisation and interest rate fixation materially affect both the magnitude and composition of transmission. As some of these heterogeneities may, in certain circumstances, have aggregate implications, this paper explains how a broad and flexible toolkit, centred on the main policy rate and, when needed, complemented by other policy instruments such as asset purchases and targeted liquidity operations, can be deployed in a proportionate manner to ensure effective monetary policy transmission across a structurally diverse 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
G21 : Financial Economics→Financial Institutions and Services→Banks, Depository Institutions, Micro Finance Institutions, Mortgages
G32 : Financial Economics→Corporate Finance and Governance→Financing Policy, Financial Risk and Risk Management, Capital and Ownership Structure, Value of Firms, Goodwill
- 6 November 2025
- OCCASIONAL PAPER SERIES - No. 377Details
- Abstract
- This paper serves as a reference guide on the effects of “standard” monetary policy shocks on output and prices, based on harmonised simulation exercises conducted across models of the European System of Central Banks (ESCB), meta-analysis of existing empirical literature for the euro area, and selected works on heterogeneity and non-linearities in the monetary transmission mechanism as captured by empirical models. Our analysis starts by comparing the effects of monetary policy shocks as estimated by structural, semi-structural and dynamic stochastic general equilibrium (DSGE) models, and identifying the main sources of heterogeneity – most notably via the specification of monetary policy rules, the slope of the Phillips curve, the role of real rigidities and financial frictions, and the expectations formation mechanism. While DSGE models tend to produce sharper responses, semi-structural models often reveal more gradual and persistent effects, in line with backward-looking empirical models. The second chapter presents a meta-analysis of estimated effects based on the empirical literature, which are broadly consistent with the results obtained from the ESCB models, although differences might appear when correcting for publication bias, or accounting for different identification frameworks. The study is then complemented by selected works on heterogeneity and non-linearities in the monetary transmission mechanism as captured by empirical models. Our analysis in the final chapter shows that monetary policy transmission is heterogeneous across countries, sectors, demand components, and time. It also reveals important non-linear and state-dependent dynamics: in high-inflation periods, greater price and wage flexibility amplifies the response of inflation while dampening output effects, thereby lowering the sacrifice ratio. [...]
- JEL Code
- C22 : Mathematical and Quantitative Methods→Single Equation Models, Single Variables→Time-Series Models, Dynamic Quantile Regressions, Dynamic Treatment Effect Models &bull Diffusion Processes
C52 : Mathematical and Quantitative Methods→Econometric Modeling→Model Evaluation, Validation, and Selection
D58 : Microeconomics→General Equilibrium and Disequilibrium→Computable and Other Applied General Equilibrium Models
E31 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Price Level, Inflation, Deflation
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
F45 : International Economics→Macroeconomic Aspects of International Trade and Finance
- 30 June 2025
- OCCASIONAL PAPER SERIES - No. 372Details
- Abstract
- This report focuses on the implications of the changed inflation environment for the ECB’s monetary policy strategy, including the lessons learned from both the low inflation and high inflation periods, and the transition from one to the other. The starting point of the report is the outcome of the Monetary Policy Strategy Review 2020-21. While the previous review was conducted in an economic environment of low inflation, with interest rates in proximity to the effective lower bound (ELB), the inflation surge that followed the COVID-19 pandemic underscores the importance of a monetary policy strategy that enables the Governing Council to effectively respond to major changes in the inflation environment.