Courtemanche, Charles J et al <br/><br/>
Do walmart supercenters improve food security? / 
Charles J. Courtemanche et al 
 - Cambridge  NBER  2018 
 - 42p 
 - NBER Working Paper ;  24750 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NBERWP 24750<br/>E22478.pdf