Assuming Anton contribution distribution from Formula (12) Formula (18) defines the annuity depreciation of a single capital investment g as
For t = 1 we have, considering that v0 = g,
Thus the annuity depreciation d1 is equal the straight-line depreciation (1/N)g. Likewise, for t = 2 we have
Repeating the process the general d t becomes
which, again, is equal the straight-line depreciation.