One of the recurring themes of recent RCTs is that apparently small incentives can make a big, big difference.
YouTube's video options can be accessed in the bottom right of the video player.
If you do not see some of these options, check your browser support for HTML5.
Please register or login to add a contribution
Banerjee, Duflo, Glennerster, and Kothari "Improving Immunisation Coverage in Rural India"