Core Viewpoint - The European Central Bank (ECB) considers large-scale asset purchases as the best unconventional monetary policy tool for managing monetary policy, especially when interest rates are at zero [1][2]. Group 1: Monetary Policy Tools - Francois Villeroy de Galhau, a member of the ECB's governing council, emphasizes that quantitative easing (QE) should be the preferred option for achieving lasting changes in monetary policy [1]. - Villeroy expresses a preference for QE over negative interest rate policies, despite past criticisms regarding potential side effects such as asset bubbles and increased inequality [1]. - The ECB's evaluation report suggests a possible future reactivation of QE, although some officials indicate that its use may be more restrained [1]. Group 2: Policy Effectiveness - Isabel Schnabel, a member of the ECB's executive board, notes that the cost-benefit ratio of QE for stimulating the economy is no longer ideal, while long-term refinancing operations have shown significant effectiveness in restoring bank lending [1]. - Philip Lane, the ECB's chief economist, states that the intensity of any policy response will depend on the severity of the underlying issues [1]. Group 3: Risk Management - Villeroy asserts that the ECB's recent evaluation clarifies the principle of "moderate" use of such tools and suggests that negative impacts can be mitigated [2]. - He mentions that there are various ways to control the potential risks associated with the composition of the central bank's balance sheet due to QE [2].