Mulligan, Casey B. <br/><br/>
Social security in theory and practice (I) : facts and political theories 

 - Cambridge, Mass :  National Bureau of Economic Research,  1999 
 - 38 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOCIAL SECURITY--POLITICAL ASPECTS--ECONOMETRIC MODELS<br/>SOCIAL SECURITY--PUBLIC OPINION<br/>AGED--POLITICAL ACTIVITY--ECONOMETRIC MODELS<br/>PRESSURE GROUPS--ECONOMETRIC MODELS
<br/><br/><label>LC Class. No.: </label>HD7105.3  / M844S