前回エントリで一部を引用したクルーグマンのブログエントリでは、冒頭近くに以下のようなことが書かれている。 It’s a bit self-centered, but I find it useful to approach this subject by asking how I would change what I said in my 1998 paper on the liquidity trap. Hey, it was one of my best papers; and it has held up pretty well in many respects. But Japan and the world look different now, and trying to pin down that difference may help clarify matters. I