U.S. Justice Department: Does Neighborhood Watch reduce crime? Neighborhood Watch programs became popular in the 1970s and 1980s; by 2000, roughly 40% of the U.S. residential population was covered by such citizen crime-watching programs.
Definition of actuarial. 1  1 : of or relating to actuaries. 2  2 : relating to statistical calculation especially of life expectancy.
All standard actuarial cost methods are comprised of two components: normal cost and the actuarial accrued liability. An actuarial cost method determines the incidence of pension costs, not the ultimate cost of a pension plan; that cost is determined by the actual benefits paid less the actual investment income. Actuarial Equivalent. A benefit having the same present value as the benefit it replaces.