Open Access

Johannes Albrecht

• The start of the financial crisis in 2007 and the collapse of Lehman Brothers the end of 2008 led to a severe global economic crisis. To counter the negative shocks of the crisis, central banks pushed their conventional monetary policy tools to their limits. As policy rates reached their zero lower bound and no further stimulation of the economy was possible through the standard operating framework, additional measures were needed to improve the overall situation of dislocated financial markets and liquidity shortages. Therefore, central banks in advanced economies implemented unconventional monetary policy measures called quantitative easing (QE). Quantitative easing mainly works through an expansion of a central bank’s balance sheets and is aimed to reach a desired inflation target of 2%. This thesis examines detailed introduction, procedures, risks, and exit strategy of QE. The focus of this thesis is on design and operation of QE conducted by the Bank of Japan, the Federal Reserve, the Bank of England, and the European Central Bank and on their achieved results regarding interest rates and broader economic effects. In addition, evidence for the effectiveness is analyzed with help of an event study. Key findings of this thesis demonstrate that by means of QE, positive development on economic indicators can be recorded but it also has limited impacts. If central banks conduct their stimulus for too long, it creates risks, and, for this reason, an appropriate exit strategy is required to avoid ineffectiveness of the monetary policy. To date, no country has completed their exit and, therefore, the future will illustrate the final consequences of QE.