Spolaore, Enrico <br/><br/>
Long-term barriers to economic development / 
Enrico Spolaore and Romain Wacziarg 
 - Cambridge  NBER  2013 
 - 67p 
 - NBER Working Paper ;  19361 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NBERPWP 19361<br/>E10513.pdf