A brief history of measures of population aging
Mathematical appendix
Prospective ages
Mathematical appendix
How old do you need to be to be old?
How different are measures of population aging based on chronological and prospective age?
Note on NTA economic support ratios
Determining ages based on the characteristics of people
Mathematical appendix
The stage of old-age
Is the quality of life in old-age getting worse?
Survival trajectories: Russian regions and US states
The gender gap in survival
What would happen to population aging if life expectancy increase sped up?
If life expectancy continues to increase, will population aging ever stop?
Appendix
Intergenerationally equitable normal pension ages
Mathematical appendix
Choosing which pair of glasses to wear.