1 (Backward Looking) (Forward Looking) Krugman 90 91 2 97 1.5% 70 10% 80 4% 94 97 99 2000 2002 92 10 87 2000 IT 90 90 90 97 98 yasushi.okada@gakushuin.ac.jp 2 2000 IT Frisch[1] Kalecki[2] Samuelson[3] Harrod[3] Hicks[4] Kaldor[5] Goodwin[6] [7] 1950 [8] Solow[9] 1970 Burmeister and Dobell[10]) 1960 1970 Intrinsic Dynamics Blinder & Solow[11] Turnovsky[12] intrinsic intrinsic Klein Mark I C(t) Y(t)