Description: This is a letter from Jan M. Hoem to Arnold F. Shapiro about Exposed-to-risk considerations based on the Balducci assumption and other assumptions in the analysis of mortality.

Description: Presents a theoretical basis for a computerized methodology for estimating biological age - a measure of time to death.

Description: The purpose of this note is to show how certain formulas of life contingencies can be derived almost painlessly under the uniform distribution of deaths assumption.

Description: Series of letters discussing the controversial Gershenson formula for calculating exposures for mortality tables at the end of the observation period.

Description: Provides an in-depth review of Canadian occupational mortality and morbidity - disability - experience. This includes population and insured data up to 1981.

Description: This study provides statistical indications of trends in mortality at ages 10 through 34 for both males and females in Canada. Causes of death, with emphasis on suicide and accidental death rates, are explored.

Description: This article investigates the simplicity of the Balducci hypothesis, and compares the fractional-age death probability given by three widely used assumptions: uniform distribution of deaths, the Balducci hypothesis, and constant force of mortality [1, 2].

Description: In this paper the author proposes a proof for new formulas that derive exposure formulas of the valuation-schedule type on the basis of the Balducci assumption. In addition he provides a short cut for the coefficients of the terms involving deaths. Then he derives a general exposure formula of the valuation-schedule type that may be used for all mortality studies with an observation period covering an integral number of consecutive years. From ACTUARIAL RESEARCH CLEARING HOUSE, 1980 VOL. 2.

Description: In this paper, we study a survival regression model known as Cox's proportional Hazards model. We assume that the data available are already grouped and develop a minimum distance estimation procedure that is also applicable when the data are also left or right censored. Asymptotic properties of the estimators are established and the numerical implementation of the method based on an iterated reweighted least squares algorithm is discussed.

Description: This paper discusses a general model for calculating life contingencies including formulation of the model and net reserves and contingency reserves.