Field Experiments

<a href="http://karlan.yale.edu/fieldexperiments//uploads/Patience_Children_JPUBE_Oct_26_2006_Slonim_Bettinger.pdf">fieldexperiments.com;http://karlan.yale.edu/fieldexperiments/;/uploads/Patience_Children_JPUBE_Oct_26_2006_Slonim_Bettinger.pdf</a>