*  *  *  Introduction Currently, major central banks have introduced "unconventional monetary policy measures" to deal with the economic and financial crisis that materialized in the aftermath of the bursting of the global credit bubble. In this regard, the Bank of Japan has clearly been a forerunner since the latter half of the 1990s.
Looking at the diffusion index (DI) for output prices in the Tankan, the situation has continued for over a year in which the  5  proportion of enterprises answering that the output prices have risen exceeds the proportion of those answering that such prices have fallen. This has occurred for the first time in about 30 years since the bubble period.