ALL BUT A FEW countnes throughout the world hsd one or more public progrtlms provldmg some type of social security protectlo* m 1977. Some of these programs date back to the late 19th century and contam extensive provwons Some other systems-pnrtlculsrly those of the 60 countries that obtamed their independence during the past two decades-are much ne\\er and, as a consequence, are still quite ln...
