Abstract
Industry has been supplying more variety of goods to consumers in order to cope with multi-purpose in citizens' lives. This small lots size production cost and energy consumption has been increasing. In this paper, external cost by extreme variety of goods is estimated in some sections of the production process. Questionnaire was sent to 27 corporations in 4 kinds of household goods industries and their catalogue were investigated. In the most of the goods, the rapid increase of goods' variety started in 1984, the highest value was between 1989 and 1990 and the trend of decrease was observed in 1991. The degree of rising demand is estimated for an additional type of goods by the statistic analysis. The energy consumption was calculated for production of goods equivalent to 1.0 million yen (total production cost) using the input-output analysis. In motorcar industry, 1.8 of production energy was increased by an additional type of car.
