Table 1.

Typology of Accumulation for Research on Aging and the Life Course

1. Object of accumulation

a. Source

(i) Exogenous

(ii) Endogenous

b. Presumed valence

(i) Desirable

(ii) Undesirable

c. Domains

d. Recurrence

2. Timing of accumulation

a. Onset

b. Duration

c. Pace

3. Thresholds of accumulation

a. Nonlinearities

b. Aggregation

4. De-accumulation

a. Slowing

b. Halting

c. Reversing

5. Level of accumulation

a. Individual

b. Collection of individuals

(i) Families

(ii) Communities

(iii) Regions

(iv) Nations

6. Consequences of accumulation

a. Intrinsic

b. Extrinsic