In this paper we overview the macroeconomic adjustment to the Lehman shock in Japan. After retrospecting the Japanese economy since the Plaza Accord which led Japan to the bubble economy and the ‘lost decade' we explain the business cycles in Japan and show related macroeconomic indicators...

1 Survey of the Literature -- 2 Augmentations to Multiple q Theory -- 3 Construction and Summary Statistics of the Data -- 4 Investment Behavior of Japanese Firms -- 5 Extensions of the Multiple q Model: (I) Heterogeneity by Enterprise Size -- 6 Extensions of the Multiple q Model: (II)...