Description: Presented at Living to 100 and Beyond symposium 2002. Discussion of two papers, 'Approaches and Experiences in Projecting Mortality Patterns for the Oldest Old' by Buettner and 'Using Dynamic Reliability in Estimating Mortality at Advanced Ages' by Lin. The first paper discusses the UN methodology for projecting mortality above age 80 and presents another approach for addressing the problem of table closing. The second paper suggests a new statistical model for fitting and estimation of mortality rates at advanced ages.

Description: Discussion of papers presented at Living to 100 and Beyond symposium. Papers discussed: 'Dealing with Problems in Data Quality for the Measurement of Mortality at Advanced Ages' in Canada by Bourbeau and Desjardins, 'Mortality at Advanced Ages in Spain' by Felipe and Anguera, and 'Emergence of Supercentenarians in Low Mortality Countries' by Robine and Vaupei. These papers all deal with centenarians.

Description: Presented at Living to 100 Symposium, January 2002. This paper is a first attempt to assess which group of mortality trajectories proposed by various researchers is confirmed by empirical data between the age of 110 and 115 years when the exponential trajectories on the one hand and the logistic or quadratic trajectories on the other hand have diverged sufficiently.

Description: Presented at Living to 100 symposium, January 2002. This paper proposes a standard operating procedure for testing the Gompertz assumption using yearly age-specific mortality data, and the impacts of the data collection period and population sizes on the testing results are discussed.

Description: Presented at the Living to 100 Symposium, January 2011. This study explores increasing life expectancy by examining the basic properties of survival curves. Specifically, the author checks for signs of mortality compression, using a non-traditional approach. The results indicate that human longevity is likely to increase, at least for a while, and longevity risk should be seriously considered in pricing annuity products. Some suggestions for dealing with the longevity risk are also proposed.

Description: We propose an age-shift model to modify the LC model and deal with the problem of parameters. The proposed method attains smaller estimation errors with respect to mean absolute percentage error or mean square error. We also apply the proposed age-shift model to the mortality rates of these four countries to evaluate the longevity risk in annuity products by measuring life expectancy.

Description: Presented at Living to 100 and Beyond symposium 2002. Discussion on 'Living to Age 100 in Canada in 2000' by Doray and 'Oldest-Old Mortality Rates and the Gompertz Law: A Theoretical and Empirical Study Based on Four Countries' by Yue papers.

Description: Presented at Living to 100 Symposium, January 2011. This study adapts the idea of regular discount sequence in the bandit problem, and uses it to interpret life expectancy, as well as to develop a model for survival probabilities. Data came from multiple countries.