Modeling Shifting Mortality, and Its Applications

Dr. Futoshi Ishii is a professor of Keio University, Tokyo, Japan. He received his Ph.D. in demography from University of California, Berkeley, in 2014. He is a formal demographer who has contributed to the official population projections for Japan when he worked at the National Institute of Population and Social Security Research (IPSS). He is a founding director of the Japanese Mortality Database at IPSS, which is a database of Japanese life tables frequently used in mortality studies for Japan.His major research fields are population projection, mortality analysis, and mathematical demography. He has published many books and papers in these fields that include co-edited book “Choju Kenko no Jinkogaku (Demography of Longevity and Health)”(Hara Shobo 2021).

• Introduction.-  Mortality Trends and Projection Models in Japan.- Data and Methods.- Linear Difference Model.- Tangent Vector Field Approach to Mortality Projection.- Application to Analysis of the Trends of Modal Age at Death.- Summary and Conclusion.