European Central Bank

Policymakers often cite the risk that inflation expectations might “de-anchor” as a key reason for responding forcefully to inflationary shocks. We develop a model to analyze this trade-off and to quantify the benefits of stable long-run inflation expectations. In our framework, households and firms are imperfectly informed about the central bank’s objective and learn from its policy choices. Recognizing this interaction, the central bank raises interest rates more aggressively after adverse supply shocks and accepts short-run output costs to secure more stable inflation expectations.

We use a comprehensive Swedish credit register to document that firms across the size distribution have access to substantial borrowing capacity via credit lines. However, most firms choose not to use all available credit, even though interest rates are low compared to their return on equity. The low utilization of credit is consistent with a theoretical model in which utilization rates decrease with both real and financial uncertainty.

Our new methodology builds an inter-country input-output table that distinguishes green products from the rest, allowing us to assess vulnerabilities in green value chains. In a multi-country, multi-sector model, our table reveals that a decoupling of green supply chains between a US-centric West and a China-centric East could globally cut trade in green products by up to 20%, lower welfare by up to 3% and raise yearly global greenhouse gas emissions by about 50 million tonnes.

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.