Explanation of "Monetary Base Statistics"
Bank of Japan
Research and Statistics Department
Frequency of compilation : Monthly basis
Time of release : 2nd business day of the following month
Commencement of data : January 1970 (average amounts outstanding), July 1996 (amounts outstanding at end of period)
There is no continuity between the figures until March 1981 and those from April 1981.
The monetary base is the "Currency Supplied by the Bank of Japan" and is defined as follows.
Monetary base = Banknotes in Circulation + Coins in Circulation + Current Account Balances (Current Account Deposits in the Bank of Japan)
2. Notice on usage
|1)||The "Banknotes in Circulation" and "Coins in Circulation" in the monetary base include cash (banknotes and coins) held by financial institutions, while "Currency in Circulation" in the Money Stock Statistics does not. This is because the former is defined as the "Currency Supplied by the Central Bank," while the latter is defined as the "Currency Supplied to the Economy from the Financial Sector as a Whole (including the central bank)" in addition.|
|2)||The definitions of the monetary base
New Basis (April 1981 -) = Banknotes in Circulation + Coins in Circulation + Current Account Balances (Current Account Deposits in the Bank of Japan)
|*||In order to indicate "Currency Supplied by the Bank of Japan" more precisely, "Reserve Balances" has been replaced by "Current Account Balances (Current Account Deposits in the Bank of Japan)" which includes deposits by institutions not subject to the Reserve Requirement System (tanshi companies <money market brokers-cum-dealers>, securities companies etc.)|
|3)||Method of adjusting the effect of changes in the reserve requirement rate
Reserve balances (reserve requirement rate change adjusted) = Reserve balances of the month * (Average effective reserve requirement rate of base period / Rate of comparison period)
|4)||Reserve Balances for the last two months are preliminary figures.|
|5)||Notes on usage|
Every February: the seasonally adjusted data are revised from the beginning of the data.
If an error is discovered in the reported data or in the compiling process, the data are revised immediately. In principle, the data are retroactively revised, and are announced on the closest release date from when the data correction is finished.