Kahn Matthew E <br/><br/>
Pollution control effort at China’s river borders :  When does free riding cease? / 
Matthew E. Kahn, Pei Li and Daxuan Zhao 
 - Cambridge  NBER  2013 
 - 34p 
 - NBER Working Paper  ;  19620 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NBERWP 19620<br/>E10773.pdf