In recent years, financial markets worldwide became highly integrated, overcoming national borders. The problem of developing adequate tools and comprehensive approaches for achieving higher security and stability in the EU financial sector is on the agenda. Key issues and challenges for the formation and development of the single European financial market, driven by the new realities, are considered in this thesis. The goal of this thesis is to propose and develop analyses able to contribute to the transformation of the banking system from a structure with delayed-in-time management, in which the impact of the regulatory measures and interventions in response to a particular problem is delayed in the time, into an operational self-regulating system (system of systems) operating in near real-time. This transformation would allow sharp increase in stability and operability of the system. The so defined goal implies the following more specific objectives: to analyze the banking market through the network perspective in order to reveal some aspects of the system, not typical to the particular institutions, regarded as separate entities; to analyze the regulatory and supervisory architectures for discovering the current control structure of the banking system; to explore and develop the architecture of the banking system as a separate critical infrastructure, which could enable the application of network-centric approach as an opportunity for achieving stability and efficiency (operability) in the financial sector, directly related to national and international security. The main proposition of the thesis is the creation of a new type of network supervisory architecture as an alternative to the current supervisory models in order to respond to the modern structure of the financial markets.
