This paper explains the procyclicality of capital reallocation documented by Eisfeldt and Rampini (2006) and Cui (2012) by endogenising the resale price of capital in a dynamic general equilibrium model with heterogeneous firms hit by aggregate and idiosyncratic productivity shocks. I build a...

This paper studies optimal policy in models with multidimensional uncertainty and endogenous observables. We first consider a very general setup where the policy-maker does not observe the realisations of the shocks that hit the economy, but only some aggregate variables that are endogenous with...