The existing (and ongoing) massive expansion of base money into the banking systems of the US, England, and Japan is without precedent. As Nomura's Richard Koo notes, at 16x statutory reserves, the liquidity 'should' have led to unprecedented inflation rates of 1,600% in the US, 970% in the UK, and 480% in Japan. However, it has not, yet. In short, Koo explains, businesses and households in these economies have stopped borrowing money even though interest rates have fallen to zero.