Abstract
Change in household water consumption characteristics such as popularization of water saving appliances must be considered when reservoir operation plans are examined in the drought time or a long term water resource management plan is settled. In this paper we use a water consumption model which is established based on utility maximization and cost minimization problem to analyze the droughts damage when household water consumption characteristics change. We apply this model to two generations of two cities in Japan and compare the droughts damage according to the water consumption characteristics. We find that settling water supply restriction rule during droughts has been more difficult along with water consumption characteristics change.
