Asymmetric shocks in a currency union: The role of central bank collateral policy

Francois Koulischer

Working papers from Banque de France

Abstract: Currency unions limit the ability of the central bank to use interest rate policy to accommodate asymmetric shocks. I show that collateral policy can serve to dampen asymmetric shocks in a currency area when these shocks also affect the collateral held by banks and when collateral portfolios of banks differ systematically across countries. In my model banks from 2 countries use collateral to borrow from the money market or a central bank that targets a level of interest rate (or investment) in each economy. The distressed bank may enter a collateral crunch regime where it is constrained in its access to funding due to a moral hazard problem. The central bank faces an heterogeneous transmission of its interest rate: a unit change in rate has a smaller effect on the economy rate of the distressed country. The central bank therefore sets a high interest rate which is well transmitted in the booming economy and relaxes the haircut on the collateral owned by the distressed bank.

Keywords: Central banking; currency union; collateral policy; repo; monetary policy. (search for similar items in EconPapers)
JEL-codes: E58 G01 G20 (search for similar items in EconPapers)
Pages: 49 pages
Date: 2015
New Economics Papers: this item is included in nep-cba, nep-eec, nep-mac, nep-mon and nep-opm
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:bfr:banfra:554

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