Foreword by David Halpern -- Chapter 1: Introduction -- Section 1: Central Teams -- Chapter 2: From innovative to imperative: Evolving the application of behavioral science in the Government of Canada -- Chapter 3: Ten Years of Ireland’s Behavioural Research Unit -- Section 2: Line departments...

This paper presents results from a large (43,387) nationwide randomized controlled trial in Guatemala that used reminders to promote tax compliance. The trial varied the letter received by taxpayers (individuals and firms) who had failed to pay their income tax for the 2013 tax year. Taxpayers...