https://creativecommons.org/licenses/by/4.0/2024-08-0701/30/20152017-03-28https://beta-pyxida.aueb.gr/handle/123456789/5186This thesis is divided to 4 chapters. Chapter 1 describes the creditor moral hazard during EMU crisis. Chapter 2 discusses the linkages between the transmission of monetary policy and sovereign bond spreads. Chapter 3 discusses the Tobin Taxation over financial transactions. Chapter 4 approaches the systemic risk and financial market contagion under the context of bank and sovereign credit markets.434p.Monetary policyFinancial crisisEurozoneBanksText