Ravallion, Martin <br/><br/>
Mystery of the vanishing benefits: Ms. Speedy analyst's introduction to evaluation 
Ravallion, Martin 
 - Washington, D C  The World Bank  1999 
 - 40 p. 
 - Pilicy research working paper, 2153 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation research (Social action Programmes)<br/> Regression analysis.
<br/><br/><label>Dewey Class. No.: </label>361.072