Nakayachi, K. (中谷内 一也) (2018). Effects of providing measures against earthquakes: Experimental studies on the perceived risks of disasters and disaster preparedness intentions in Japan. 地震対策用品を提供することの効果：日本における災害リスク認知と準備行動意図に関する実験的研究 Natural Hazards, 90(3), 1329-1348.
This research examined the effects of providing measures against disasters on recipients’ perceived risks and preparedness intentions by conducting two experimental studies. A provision of a set of emergency food was manipulated in the first experiment. Participants (N = 143) were randomly assigned to the provided condition or non-provided condition. In the second experiment (N = 123), provision of an emergency toilet kit was manipulated. The results of the two experiments consistently indicated that (1) the provision of a measure increased the recipients’ perceived risks of the disaster concerned, (2) it increased their preparedness intentions for the disaster, and (3) it had no effects on perceived risks of or preparedness intentions against disasters unrelated to the measure provided. These results were contrary to the prediction deduced from the protection effect and single action effect. The findings in this study encourage promoting the risk management policy of providing people with disaster measures as the first step in disaster preparedness.