## Measuring the importance of age

**Annette Baudisch**, *Max-Planck Odense Center on the Biodemography of Aging*

**Marcus Ebeling**, *Universität Rostock*

readily be calculated for populations with different characteristics. Deriving such indices,

we suggest an intuitive method to quantify the impact of age on mortality, where

age-dependence can follow any general pattern. The method only requires estimating

the constant, age-independent mortality component. Using the constant mortality scenario

as baseline, we derive two age-indices that quantify the importance of age. The

indices provide a complementary and connected perspective, where both indices can

be viewed as two sides of the same coin. We illustrate the workings and utility of the

method with various examples. The indices are envisioned to reveal general trends and

regularities that may not be (as) apparent from common perspectives. We believe that the

method presented here may prove useful, since it is simple, intuitive and closely related

to the recently developed pace-shape framework, a new perspective which is starting to

reveal interesting results in comparative studies.

Presented in Session 30: Innovations in demographic methods