PW01 Assessment
Exhibit Hall
8:00 AM - Wednesday
(PW001) three classification types of commodities as a benchmark for sustainable consumption.
Nansai, K.1, Kagawa, S.2, Inaba, R.3, Hashimoto, S.1, Moriguchi, Y.1, 1 National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan2 Tohoku University, Sendai, Miyagi, Japan3 Hokkaido University, Sapporo, Hokkaido, Japan
ABSTRACT- We calculated optimal consumption patterns of Japanese households using a linear programming model, taking into account the different environmental burdens to be minimized. The model was developed on the basis of the von Neumann input-output system, which identifies the primary and secondary products of an industrial sector. The system permits joint production, so that a single production activity can have more than one output, and relaxes the assumption of a fixed ratio of inputs to outputs. In terms of environmental burdens to be minimized, this study considered energy consumption, CO2 emission, waste, and NOx emission. According to the direction (increase or decrease) of adjusted final demand for a commodity in the household, commodities were classified into three types: (1) a commodity for which optimal demand should be decreased in all cases of reducing various environmental burdens; (2) a commodity whose optimal demand should be increased in all cases; and (3) a commodity whose optimal demand depends on the type of environmental burden.
Key words: input-output analysis, sustainable consumption, linear programing