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Positive Liquidity Spillovers from Sovereign Bond-Backed Securities

Peter Dunne ()

Journal of Risk and Financial Management, 2019, vol. 12, issue 2, 1-25

Abstract: This paper contributes to the debate concerning the benefits and disadvantages of introducing a European Sovereign Bond-Backed Securitisation (SBBS) to address the need for a common safe asset that would break destabilising bank-sovereign linkages. The analysis focuses on assessing the effectiveness of hedges incurred while making markets in individual euro area sovereign bonds by taking offsetting positions in one or more of the SBBS tranches. Tranche yields are estimated using a simulation approach. This involves the generation of sovereign defaults and allocation of the combined credit risk premium of all the sovereigns, at the end of each day, to the SBBS tranches according to the seniority of claims under the proposed securitisation. Optimal hedging with SBBS is found to reduce risk exposures substantially in normal market conditions. In volatile conditions, hedging is not very effective but leaves dealers exposed to mostly idiosyncratic risks. These remaining risks largely disappear if dealers are diversified in providing liquidity across country-specific secondary markets and SBBS tranches. Hedging each of the long positions in a portfolio of individual sovereigns results in a risk exposure as low as that borne by holding the safest individual sovereign bond (the Bund).

Keywords: safe assets; securitisation; dealer behaviour; liquidity; bid–ask spread (search for similar items in EconPapers)
JEL-codes: C E F2 F3 G (search for similar items in EconPapers)
Date: 2019
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Working Paper: Positive Liquidity Spillovers from Sovereign Bond-Backed Securities (2018) Downloads
Working Paper: Positive liquidity spillovers from sovereign bond-backed securities (2018) Downloads
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