DP-2009-003 Michio Naoi Attrition Bias in Longitudinal Survey: A Validation Study with Interviewer's Record of Respondent Mobility PDF
DP-2009-002 Michio Naoi, Miki Seko, Kazuto Sumita Community Rating, Cross Subsidies and Underinsurance: Why So Many Households in Japan Do Not Purchase Earthquake Insurance PDF
DP-2009-001 Michio Naoi, Miki Seko, Kazuto Sumita Earthquake Risk and Housing Prices in Japan: Evidence Beforeand After Massive Earthquakes PDF