Social insurance :  papers / 
presented at the 5th Arne Ryde Symposium, Lund, Sweden, 1981 edited by Lars S oderstr om 
 - xi, 249 p. :  ill. ;  23 cm. 
 - Contributions to economic analysis  148 .
<br/><br/>Includes bibliographies 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social security--Congresses