Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/37100 
Year of Publication: 
2010
Series/Report no.: 
Kiel Working Paper No. 1639
Publisher: 
Kiel Institute for the World Economy (IfW), Kiel
Abstract: 
How should monetary policy be optimally designed in an environment with high degrees of financial globalization? To answer this question we lay down an open economy model where net lending toward the rest of the world is constrained by a collateral constraint motivated by limited enforcement. Borrowing is secured by collateral in the form of durable goods whose accumulation is subject to adjustment costs. We demonstrate that, although this economy can generate persistent current account deficits, it can also deliver a stationary equilibrium. The comparison between different monetary policy regimes (floating versus pegged) shows that the impossible trinity is reversed: a higher degree of financial globalization, by inducing more persistent and volatile current account deficits, calls for exchange rate stabilization. Finally, we study the design of optimal (Ramsey) monetary policy. In this environment the policy maker faces the additional goal of stabilizing exchange rate movements, which exacerbate fluctuations in the wedges induced by the collateral constraint. In this context optimality requires deviations from price stability and calls for exchange rate stabilization.
Subjects: 
Global imbalances
collateral constraints
monetary regimes
JEL: 
E52
F1
Document Type: 
Working Paper

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