MONETARY POLICY AND BEHAVIOURAL FINANCE
探讨行为金融学对货币政策传导机制的影响,指出尽管理论和计量技术有进步,但资产价格行为的不确定性仍使我们对传导机制的了解很不完整。
Abstract There have been major advances in both theory and econometric techniques in mainstream macro‐models and parallel advances in knowledge of the monetary transmission mechanism acting via asset prices. At the same time, behavioural finance has provided evidence that not all actors in the economy are ‘fully rational’ and this has influenced models of asset pricing on which part of the monetary policy transmission mechanism depends. Such uncertainty about the behaviour of asset prices has in part stimulated a move towards ‘robustness’, as an important criterion for guiding monetary policy. We argue that although we have discovered much, including ‘what not to do’, nevertheless our knowledge of the transmission mechanism is very incomplete. This is because, in spite of all the theoretical advances that have been made, there is still considerable uncertainty over the behaviour of agents, which has been reinforced by insights from behavioural finance.