14 August 2011
"The simple fact is that there is no limit on how much a central bank can increase the supply of money. [sic] Could the Bank of Japan, for example, double the amount of monetary base - that is, bank reserves plus cash in circulation - over the next year? Sure: just buy that amount of Japanese government debt. True, even such a large increase in the money supply might not drive down interest rates very much, since they are already so low. But an increase in Japan's money supply could ease the economic problem in ways other than lower interest rates. It is possible that putting more cash in circulation will stimulate spending directly -- that the extra money will simply "burn holes in peoples' pockets". Or banks, awash in reserves, might become more willing to lend; or individuals, with all that cash on hand, will bypass the banks and find other ways of investing. And even if none of these things happens, when the Bank of Japan increases the monetary base it does so by buying off government debt -- and therefore makes room for spending increases or tax cuts.
"So never mind those long lists of reasons for Japan's slump. The answer to the country's immediate problems is simple: PRINT LOTS OF MONEY. But won't that be inflationary? Well, remember that the Bank of Japan is supposed to be impotent: if it prints more money, people will simply hoard it rather than save it. But printing money is only inflationary if people spend it, and if that spending exceeds the economy's capacity to produce. You cannot first argue that monetary policy is ineffective as a way to increase demand, then reject a proposal to print more money on the grounds that it will cause inflation."
The full article can be seen at What is wrong with Japan?.
Readers might wonder why a Keynesian was advocating such notably monetarist remedies instead of recommending public spending. The reason was that the Japanese government had tried it and failed.