What do actual data tell about the effects of quantitative easing? It is always difficult to single out the effects of quantitative easing because there always exist various other factors; There also exists a certain time lag in effect of monetary policy.
Although I am not able to make an assertive judgment, let me try to present some facts related to the question based on four yardsticks. The first yardstick is whether the growth of monetary aggregates such as money supply has increased.