Inflation: Drivers and Dynamics Conference 2025

Inflation: Drivers and Dynamics Conference 2025

Humanities, Social Sciences & Thought Economics & Finance KCBMacroeconomicsKCBMMonetary economics
🎙 European Central Bank 👥 106K 📅 September 30, 2025 ⏱ 503 min 👁 2K 📄 conference presentation 🧭 2026-08-06
Available in: English (current) Français

Keywords

inflationsticky pricesrationingmonetary policyPhillips curve

Summary

This video is a recording of the third session of the ‘Inflation: Drivers and Dynamics Conference 2025’, hosted by the European Central Bank and the Federal Reserve Bank of Cleveland. The session focuses on firm pricing theories, featuring a presentation by Tom Holden from the Deutsche Bundesbank titled ‘Rationing under Sticky Prices’. Holden motivates his research by citing recent supply disruptions that led to stockouts and delivery delays, arguing that these are forms of rationing chosen by firms when prices are sticky. He reviews why sticky prices inevitably lead to rationing: as inflation erodes real prices, firms’ real marginal costs rise, and eventually it becomes unprofitable to serve all demand. The paper develops a continuous-time New Keynesian model with random rationing and endogenous price rigidity. Key findings include that rationing generates a convex Phillips curve, reduces the welfare costs of positive trend inflation, but makes monetary policy less effective for stabilization. Following an expansionary monetary policy shock, welfare-relevant output declines even though measured output increases, due to a reduction in product variety. Holden presents empirical evidence from US data showing that stockouts are common, increase after expansionary shocks, and that price adjustment rates are linked to stockouts. The presentation is highly technical, aimed at an academic audience, and includes detailed model derivations and empirical analysis.

215 words

Critical Evaluation

The video provides a rigorous and insightful presentation of a novel economic model that addresses a significant gap in the sticky-price literature: the assumption that firms always satisfy demand. The speaker, Tom Holden, is an economist at the Deutsche Bundesbank, lending credibility to the research. The presentation is well-structured, starting with a clear motivation from real-world supply disruptions, then explaining the theoretical mechanism, presenting empirical evidence, and finally outlining the model and its implications. The argumentation is solid: the speaker carefully explains why rationing is a natural consequence of sticky prices, using a simple back-of-the-envelope calculation to show that even modest inflation can lead to significant increases in marginal costs, making rationing optimal. The empirical evidence, including data on stockouts and responses to monetary policy shocks, supports the theoretical claims. However, the video is a conference presentation, not a peer-reviewed paper, and the speaker does not provide full citations or links to the underlying data and sources. The technical level is high, with advanced mathematical notation and economic jargon, which may limit accessibility to non-specialists. The adéquation between title and content is strong, as the session indeed focuses on firm pricing theories. Overall, the video offers valuable insights into the macro implications of rationing, but viewers should be aware that it is a research presentation and not a comprehensive review of the literature. The lack of interactive elements and the length (over 8 hours) may also affect engagement, but this specific segment is focused and informative.

246 words

Title / Content Match

The title accurately reflects the content: the video is a session from the ECB's annual inflation conference, focusing on firm pricing theories and rationing under sticky prices.

Quality & Reliability

8/10

The video is a recording of an academic conference session featuring a research paper presentation by an economist from the Deutsche Bundesbank. The content is technical, based on economic theory and empirical evidence, and follows standard academic presentation norms. The speaker is affiliated with a reputable institution, and the conference is hosted by the ECB and the Cleveland Fed. The presentation includes references to data and prior research, though the video does not provide full citations or links. The quality is high, but the lack of verifiable sources in the video and the absence of peer review in this format slightly reduce the score.

Key Moments

Cited Sources

  • No specific sources cited in the video — The speaker mentions data from Kabay Kristoff, Caldara and Iacoviello, Miranda-Agrippino and Rico, and Daniel Var, but does not provide URLs or full citations.

Concurring Sources

Contribution & Novelties

The paper introduces a novel modeling approach by allowing firms to ration demand in a sticky-price framework, which is a departure from the standard assumption of always satisfying demand. This leads to new insights into the Phillips curve convexity, welfare costs of inflation, and the transmission of monetary policy. The model’s tractability, achieved through a specific distribution of demand shocks, allows for a clear understanding of the mechanisms.

Pour aller plus loin :

  • New Keynesian economics — Provides background on the standard sticky-price models that this paper extends.
  • Phillips curve — The convexity of the Phillips curve is a key finding; this article explains the concept.
  • Monetary policy shock — The paper analyzes the effects of monetary policy shocks; this page offers an overview.

124 words

Radar Profile

The radar profile shows high scores in quantity of information, quality of information, technical level, and global reliability, indicating a dense, rigorous, and expert-level presentation. The relatively lower score in 'fiabilite_globale' compared to others might reflect the lack of full citations and the non-peer-reviewed nature of the conference presentation.

Reliability 8/10

💬 No comments were provided for analysis.