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     <dc:title xml:lang="en">International Portfolio Theory-based Interest Rate Models and EMU Crisis</dc:title>
     <dcterms:alternative xml:lang="fr">Modèles de taux d’intérêt basés sur la théorie des choix de portefeuilles internationaux et crise de l’UEM</dcterms:alternative>
     <dc:subject xml:lang="fr">Structure à terme des taux d'intérêt</dc:subject><dc:subject xml:lang="fr">Modèles GARCH</dc:subject><dc:subject xml:lang="fr">Contagion</dc:subject><dc:subject xml:lang="fr">Flight-to-quality</dc:subject><dc:subject xml:lang="fr">Test Forbes et Rigobon</dc:subject><dc:subject xml:lang="fr">Théorie du portefeuille</dc:subject><dc:subject xml:lang="fr">Impact QE</dc:subject><dc:subject xml:lang="fr">OMT. </dc:subject>
     <dc:subject xml:lang="en">Term structure of interest rates</dc:subject><dc:subject xml:lang="en">GARCH models</dc:subject><dc:subject xml:lang="en">Contagion</dc:subject><dc:subject xml:lang="en">Flight-to-quality</dc:subject><dc:subject xml:lang="en">Forbes and Rigobon test</dc:subject><dc:subject xml:lang="en">Portfolio theory</dc:subject><dc:subject xml:lang="en">QE impact</dc:subject><dc:subject xml:lang="en">OMT.</dc:subject>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027803112">Taux d'intérêt</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="027744361">Gestion de portefeuille</tef:elementdEntree>
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						<tef:elementdEntree autoriteSource="Sudoc" autoriteExterne="030520231">Union économique et monétaire</tef:elementdEntree>
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     <dcterms:abstract xml:lang="fr">L'objectif de cette thèse est d’étudier à côté du risque défaut, le rôle spécifique des risques de volatilité et de co-volatilité dans la formation des taux longs dans la zone euro. On propose en particulier un modèle théorique de choix de portefeuille à deux pays permettant d’évaluer la contribution des primes  de risque de volatilité aux processus de contagion et de fuite vers la qualité dans différents épisodes de la crise de la dette souveraine.   Ce modèle permet également d’analyser le rôle des achats d’actifs (QE) de la BCE sur l’équilibre des marchés obligataires. Nos tests empiriques suggèrent que les programmes QE de la BCE à partir de mars 2015 n’ont fait qu’accélérer « une défragmentation » des marchés obligataires de la zone euro, apparue plus tôt dans la crise, dès la mise en place de l’OMT. </dcterms:abstract>
     <dcterms:abstract xml:lang="en">This thesis examines the specific role of volatility risks and co-volatility in the formation of long-term interest rates in the euro area. In particular, a two-country theoretical portfolio choice model is proposed to evaluate the volatility risk premia and their contribution to the contagion and flight to quality processes. This model also provides an opportunity to analyze the ECB's role of asset purchases (QE) on the equilibrium of bond markets. Our empirical tests suggest that the ECB's QE programs from March 2015 have accelerated the "defragmentation" of the euro zone bond markets. </dcterms:abstract>
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       <tef:nom>Zhang</tef:nom>
       <tef:prenom>Jiangxingyun</tef:prenom>
       
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                        <dc:identifier xsi:type="tef:NNT">2017REN1G011</dc:identifier>
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