Abstract
We proposed a reconciliation method in order to estimate material flow and stock for providing information to construct Recycle-based society. Using Input-Output Tables, industrial statistics and waste statistics as input data, this study estimated material flow and stock from 1970 to 1995 in Japan. The models developed here have been applied to three target materialswood, iron, and gravel/building stone. Based on the estimation, stock of wood has grown gently; On the one hand, stock of gravel and building stone has grown rapidly. That of iron was intermediate. As for the material flow, input, output, waste and stock of target materials by each industry sector were estimated.
