DellaVigna, Stefano et al <br/><br/>
Estimating social preferences and gift exchange at work / 
Stefano DellaVigna et al 
 - Cambridge  NBER  2016 
 - 57p 
 - NBER Working Paper ;  22043 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NBERWP 22043<br/>E16572.pdf