Ravallion, Martin <br/><br/>
The mystery of the vanishing benefits: ms. speedy analyst's introduction to evaluation 
by Martin Ravallion 
 - Washington, D.C.  World Bank  1999 
 - 40p. 
 - Policy research working paper 2153 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Poverty<br/>Economic assistance, Domestic