This paper asks two main questions: (1) What makes some asset price bubbles more costly for the real economy than others? and (2)When do costly bubbles occur? We construct a model of rational bubbles under credit frictions and show that when bubbles held by banks burst this is followed by a...

This paper asks two main questions: (1) What makes some asset price bubbles more costly for the real economy than others? and (2) When do costly bubbles occur? We construct a model of rational bubbles under credit frictions and show that when bubbles held by banks burst this is followed by a...

We build a model of rational bubbles in a limited commitment economy and show that the impact of the bubble on the real economy crucially depends on who holds the bubble. When banks are the bubble-holders, this amplifies the output boom while the bubble survives but also deepens the recession...

We build a model economy in which a shortage of safe assets can create conditions for intrinsically useless `safe' bubble assets to circulate at a positive price. Our environment features infinitely lived individuals who are not subject to credit constraints but who face uninsurable...

We build a model economy in which a shortage of safe assets can create conditions for intrinsically useless 'safe' bubble assets to circulate at a positive price. Our environment features in nitely lived individuals who are not subject to credit constraints but who face uninsurable idiosyncratic...

We build a model economy in which a shortage of safe assets can create conditions for intrinsically useless safebubble assets to circulate at a positive price. Our environment features in…nitely lived individu-als who are not subject to credit constraints but who face uninsurable idiosyncratic...

We build a model economy in which a shortage of safe assets can create conditions for intrinsically useless ‘safe’ bubble assets to circulate at a positive price. Our environment features infinitely lived individuals who are not subject to credit constraints but who face uninsurable...

We build a model of rational bubbles in a limited commitment economy and show that the impact of the bubble on the real economy crucially depends on who holds the bubble. When banks are the bubble-holders, this amplifies the output boom while the bubble survives but also deepens the recession...

The paper evaluates the performance of three popular monetary policy rules when the central bank is learning about the parameter values of a simple New Keynesian model. The three policies are: (1) the optimal non-inertial rule; (2) the optimal history-dependent rule; (3) the optimal price-level...

This paper evaluates the performance of three popular monetary policy rules where the central bank is learning about the parameter values of a simple New Keynesian model. The three policies are: (1) the optimal non-inertial rule; (2) the optimal history-dependent rule; (3) the optimal price level...