Unconventional Monetary Policy in a Currency Union with Segmentation in the Market for Government Debt

Andreas Tischbirek

Cahiers de Recherches Economiques du Département d'économie from Université de Lausanne, Faculté des HEC, Département d’économie

Abstract: The literature on large-scale purchases of government debt emphasises the importance of bond market segmentation along the maturity dimension for their transmission. This study investigates how another form of segmentation that we observe, the segmentation of government bond markets across countries, can be exploited by the central bank of a currency union in which fiscal coordination is not attainable. Under general conditions, government bond purchases which lower bond yields have first-order effects through a fiscal channel, even in the absence of the heterogeneity in investment opportunities found in Chen et al. (2012). The total effect on aggregate demand can be broken down into an "income-from-debt-issuance effect" and a "primary-surplus effect". If there is cross-country segmentation in bond markets and home bias in government spending, the central bank is able to use government bond purchases to control the terms of trade and achieve asymmetric degrees of stimulus across the members of the currency union without a transfer of resources. I characterise the welfare-optimising mix of conventional and unconventional monetary policy in this scenario and give an upper bound on the welfare benefi ts from using the unconventional tool.

Keywords: Unconventional Monetary Policy; Quantitative Easing; Policy Coordination; Monetary Union; Market Segmentation (search for similar items in EconPapers)
JEL-codes: E50 E52 E58 F45 (search for similar items in EconPapers)
Pages: 49 pp.
Date: 2016-09
New Economics Papers: this item is included in nep-cba, nep-mac and nep-mon
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Persistent link: https://EconPapers.repec.org/RePEc:lau:crdeep:16.16

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