0 for ever --
1 forever: --
Wildlife areas have to be maintained in perpetuity.
2 for ever: --
Second were lights which had been granted to individuals in perpetuity by acts of parliament in the same period.
Each equity share pays an exogenous stream of stochastic dividends in perpetuity.
The longest period for a lease with an expiration date ends in 2077, although some leases extend in perpetuity.
The two are equivalent for a perpetuity under a flat term structure.
This is particularly likely if the plan sponsor is a government body or stable employer, which views itself as being in existence in perpetuity.
The latter is then reinvested in the underlying perpetuity, and a second round option written on its price.
An archive's purpose is the storage of artefacts in perpetuity.
Compared with the asset duration of 16.15 years for the perpetuity at 6.6 %, there is evidently a substantial duration mismatch for the writing institution.