Vittas, Dimitri <br/><br/>
The simple(r) algebra of pension plans 
by Dimitri Vittas 
 - Washington, D.C.  World Bank  1993 
 - 35p. 
 - Working Papers, WPS 1145 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pensions --Mathematical models