David R. Mann
@davidrmann
Passionate about using evidence to improve policy | Work @MathematicaNow | @Penn and @Princeton economics alumnus
ID: 132556635
http://bit.ly/m/DavidRMann 13-04-2010 15:23:16
1,1K Tweet
718 Followers
589 Following
@davidrmann
Passionate about using evidence to improve policy | Work @MathematicaNow | @Penn and @Princeton economics alumnus
ID: 132556635
http://bit.ly/m/DavidRMann 13-04-2010 15:23:16
1,1K Tweet
718 Followers
589 Following