Deflation in Japan. The other view

Our previous post showed that inflation in Japan can be completely explained by the change in labor force. Obviously, there are different (and wrong) explanations based on monetary policy of the Bank of Japan. Below is an abstract of  a working paper on this issue. In my view, it is absolutely worthless as not describing any period or major change in the inflation evolution. How can they seriously publish this kind nonsense?

Japan's Deflation and the Bank of Japan's Experience with Non-traditional Monetary Policy

This paper offers a brief summary of non-traditional monetary policy measures adopted by the Bank of Japan (BOJ) during the last two decades, especially the period between 1998-2006, when the so-called Zero Interest Rate Policy (ZIRP) and Quantitative Easing (QE) were put in place. The paper begins with a typology of policies usable at low interest and inflation rates. They are: strategy (i), management of expectations about future policy rates; strategy (ii), targeted asset purchases; and strategy (iii), QE. Alternatively, QE may be decomposed into a pure attempt to inflate the central bank balance sheet, QE0, purchases of assets in dysfunctional markets, QE1 and purchases of assets to generate portfolio rebalancing, QE2. Strategy (ii), when non-sterilized, is either QE1 or QE2. Using this typology, I review the measures adopted by the BOJ and discuss evidence on the effectiveness of the measures. The broad conclusion is that strategies (i) and (ii) have affected interest rates, while no clear evidence exists so far of the effectiveness of strategy (iii), or QE0. Strategy (ii) has been effective especially in containing risk/liquidity premiums in dysfunctional money markets; that is, QE1 has been effective. The effectiveness of QE2, however, is unclear. The strategies, however, have failed to bring the economy out of the deflation trap so far. I discuss some possible reasons for this and also implications for the current U.S. situation.