Deflation has made world's second largest economy its home for almost 3 years since 1999. According to
Keynes, Japan had fallen into the abyss of
liquidity trap where conventional monetary and fiscal policy becomes ineffective.
The CPI had declined for 41 months in a row, and there were no signs that the situation would get better.
The ratio of gross government debt to GDP had risen to 146%, a sign of financial instability.
Cyclically, the Chinese economy has experienced one of the world's largest credit bubbles. The massive creation of credit since 2008 took China's debt-to-GDP ratio from 125% in 2008 to 280% in mid 2015.
The BoJ had warned the government of possible bankruptcy of top four banking conglomerates.
Japan was trapped in a viscous cycle of deflation backed by a gigantic banking crises. It was believed that the crises was caused by shortfall in demand and consequent decrease in private spending.
During the 1980, BoJ kept interest rate low to boost demand. This was being done to counter the appreciating Yen, which was damaging exports. This artificial lowering of interest rates led to huge monetary expansion, and the resulting inflationary effect led to the increase in the price of the real estate
There is a asymmetry in the operation of the bank rate. The ultimate impact of the change in bank rate depends on a number of intervening factors which may not always hold good.
While a rise in a bank rate may have a restraining effect on the borrowers, the necessary expansionary effect may not be forthcoming because of the fall in the lending rate. A fall in the lending rate may at best offer an inducement to borrow. But whether or not borrowings will increase, will depend on the customer's assessment of the economic situation. If the business conditions are not favourable, the lowering of interest rate may not induce customers to borrow more.