In this paper, we design countercyclical capital buffer rules that perform robustly across a wide range of Dynamic Stochastic General Equilibrium (DSGE) models. These rules offer valuable guidance for policymakers uncertain about the most appropriate model(s) for decision-making. Our results...

This paper studies the effect of bank competition on the optimal use of monetary and macroprudential policies. To this end, I develop a New Keynesian DSGE model with collateral constraints and an imperfect competitive banking sector. The results from the model demonstrate that the degree of...

While conventional monetary policy maintains its role in counteracting inflation, there are doubts that it is sufficient to guard against the risks of financial instability. It has been debated whether monetary policy should lean against the wind, i.e., if central banks should also respond to...

The frequencies at which prices and wages are adjusted, interpreted as price and wage flexibility, are key elements in workhorse models used for policy analysis. Yet, there is little evidence regarding the relationship between these two sources of nominal rigidities. Using two large and highly...

We extend the New Keynesian (NK) model to include endogenous risk. Lower interest rates not only shift consumption intertemporally but also conditional output risk via their impact on risk-taking, giving rise to a vulnerability channel of monetary policy. The model fits the conditional output...

Several countries now require banks or money market funds to impose state-contingent costs on shortterm creditors to absorb financial stress. We study these requirements as part of the broader prudential toolkit in a model with five key ingredients: banks may face an aggregate stress state with...

We present a theoretical framework to characterize how financial market participants contribute to systemic risk, allowing us to derive optimal corrective policy interventions. To that end, we embed belief heterogeneity in a model of frictional financial markets. We document the asymmetry that,...

This paper studies leverage regulation and monetary policy when equity investors and/or creditors have distorted beliefs relative to a planner. We characterize how the optimal leverage regulation responds to arbitrary changes in investors' and creditors' beliefs and relate our results to...

How to conduct macro-prudential regulation? How to coordinate monetary policy and macro-prudential policy? To address these questions, I develop a continuous-time New Keynesian economy in which a financial intermediary sector is subject to a leverage constraint. Coordination between monetary and...