If QQE is terminated and the economy deteriorates, many people would believe that the economic upturn had been driven by QQE. Nevertheless, this experiment will not be persuasive enough because of the differing economic situations between the period through 2012 and from 2013.
Should this experiment be carried out, interest rates will soar, the yen will jump, stock prices will crash, and the economy will plunge into recession. Such a dangerous test must not be carried out.