抄録
Local governments publicize flood risk information aiming to mitigate future damage and loss; however, the way in which residents recognize and understand them is unclear. Several researches by analyzing land prices have quantified residents' level of flood risk understanding, with an assumption that land prices are influenced by the perception of flood risk levels. Assuming that residents' perception of flood risk increases when flood occurs is natural; however, earlier studies have not yet succeeded to identify changes between flood risk indices and land prices by using the time series analysis.
This study utilized land transaction prices of Kanda river basin, and found that the prices dropped immediately after the Great East Japan Earthquake in the high inland flooding risk area.