The aim of this paper is to show the efficiency of governmental interventions in financial crises to protect private households. Furthermore questions concerning the effects of governmental intervention instruments, for example fiscal policy, monetary policy or bail-out programs for financial and non- financial institutions will be outlined. What has to be taken in account measuring the influences of such public interferences in the markets or fiscal systems? First some basic terms concerning financial markets and the theoretical background will be explained. Keynesianism, neoliberalism, and the roots and development of those paradigms will be shown. Is the current paradigm of neoliberalism in a change progress and what