消費者行動変化の環境影響に関する考察：AIDS需要関数と産業連関的環境家計簿を用いた分析

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  • On the Ecological Effect of Changing in our Consumption Behavior: A Simulation Analysis Using the Demand Function in the semi-flexible AIDS and the Environmental Input-Output Table
  • ショウヒシャ コウドウ ヘンカ ノ カンキョウ エイキョウ ニ カンスル コウサツ AIDS ジュヨウ カンスウ ト サンギョウ レンカンテキ カンキョウ カケイボ オ モチイタ ブンセキ

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<br>Objective. The objective of this study is to investigate how to reduce the environmental load induced by consumers with ones’ minimum endurance, in other words, with a minimum reduction of utility. To carry this out, we firstly combined the environmental household accounting based on our input-output analysis with the demand function in the semi-flexible AIDS. Then we specified on the consumers’ lifestyle changes as subjective discount behaviors. We focused on the following changes: the high use of eating-out and recreation services, and the changes in the means of transportation which result from new traffic policies: the road pricing system and mobility management. <br>Results and Discussion. The increase in demand for eating out and using recreation services will increase both the utility level and the total amount of environmental load. But in the case when the eating-out demands change, the environmental efficiency of the consumption behavior decrease, while it increases along with the changes in recreation demands. The two types of changes in transportation means will increase the utility level and the utility per environmental load. The total amount of environmental load, however, will decrease by introducing the road pricing system, whereas it increases by the mobility management. <br>Conclusions. It is clear that reduction of the environmental load induced by consumers’ minimum endurance is very difficult. But some results in our simulation analysis show that some changes in our lifestyles improve the environmental situation as well as the utility level. We should seek such change of lifestyles and the device of consumption.

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