Doudchenko, Nikolay  <br/><br/>
Balancing, regression, difference in differences and synthetic control methods :  A Synthesis / 
Nikolay Doudchenko and Guido W. Imbens 
 - Cambridge  NBER  2016 
 - 35p 
 - NBER Working Paper ;  22791 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NBERWP 22791<br/>E18350.pdf