We propose a tractable framework that incorporates endogenous default in a continuous time setting and assesses the interaction of default and leverage. In our heterogeneous agent model, productive experts face leverage constraints and aggregate risk, borrow from less productive households and...

In the aftermath of the financial crisis, it has been argued that a guideline for future policy should be to take the 'a' out of 'asymmetry' in the way monetary policy deals with asset price movements. Recent empirical evidence has suggested that the Federal Reserve may have followed an...

In the aftermath of the financial crisis, it has been argued that a guideline for future policy should be to take the 'a' out of 'asymmetry' in the way monetary policy deals with asset price movements. Recent empirical evidence has suggested that the Federal Reserve may have followed an...

Galí (2014) showed that a monetary policy rule that raises interest rates in response to bubbles can paradoxically lead to larger bubbles. This comment shows that a central bank that wants to dampen bubbles can always do so by raising interest rates aggressively enough. This result is different...

The paper introduces a portfolio-based Keynesian dynamic stochastic general disequilibrium model. It is an endogenous phase-switching macroeconomic model of risky investment where the rational expectation is applied in the financial market with three financial instruments of stocks, credits, and...

The steady application of Quantitative Easing (QE) has been followed by big and non-monotonic effects on international asset prices and international capital flows. These are difficult to explain in conventional models, but arise naturally in a model with collateral. This paper develops a...

The steady application of Quantitative Easing (QE) has been followed by big and non-monotonic effects on international asset prices and international capital flows. These are difficult to explain in conventional models, but arise naturally in a model with collateral. This paper develops a...

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...

We study the interaction between financial frictions and endogenous growth and its implications for conventional and unconventional monetary policy as well as macroprudentialpolicy. We show that disturbances to financial intermediation can lead to permanent lossesin output, which are more severe...

What are the long-run aggregate effects of monetary shocks displaying throughthe credit channel of monetary policy? We address this question by investigatingthe transmission mechanism and estimating the dynamic behaviour of variablesrelated to credit and innovation. Then, we develop a DSGE model...