Mhux disponibbli bil-Malti
Mishel Ghassibe
- 27 January 2026
- RESEARCH BULLETIN - No. 139Details
- Abstract
- The post-pandemic inflation surge is often attributed to pent-up demand andopportunistic price hikes. In fact, it is better explained by the effects of theeconomy’s production network and “state-dependent” pricing, where firmschange prices optimally when the reward justifies the effort. Firms are tightlylinked through supply chains so a surge in prices upstream can triggersimultaneous repricing by many layers of firms downstream, fuelling broad-based inflation. Unlike standard models, our euro area model includes theseeffects and successfully reproduces the post-pandemic inflation surge andfaster repricing. This implies analysis of such effects is indispensable formonetary policy
- JEL Code
- E31 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Price Level, Inflation, Deflation
E32 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Business Fluctuations, Cycles
- 29 September 2025
- WORKING PAPER SERIES - No. 3123Details
- Abstract
- Business cycles with pronounced inflation can have sectoral origins and often feature a growing share of price-adjusting firms. Rationalizing such phenomena requires enhancing our modeling toolkit. We do that by building a non-linear equilibrium multi-sector framework featuring a general input-output network and optimal decisions on the timing and size of price adjustments. The interaction of our ingredients creates equilibrium cascades: large movements in aggregates trigger price adjustment decisions on the extensive margin. Following demand shocks, such as monetary interventions, networks dampen cascades, thus slowing down price adjustment decisions and giving central banks substantial power to stimulate the real economy with limited inflationary consequences. In contrast, under supply shocks, networks amplify cascades, leading to fast increases in the frequency of repricing and large inflationary swings. Applied to Euro Area data, the interaction of networks with cascades allows to quantitatively match the surges in inflation and repricing frequency in the post-Covid era.
- JEL Code
- E31 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Price Level, Inflation, Deflation
E32 : Macroeconomics and Monetary Economics→Prices, Business Fluctuations, and Cycles→Business Fluctuations, Cycles - Network
- Challenges for Monetary Policy Transmission in a Changing World Network (ChaMP)