Abstract
These files are R statistical code supporting Teng, A., Kim, A., Puloka, V., Tukunga, S., Mafi, F., Fukofuka, K., & Wilson, N. (2026). Do tax waivers reduce prices and increase imports of healthy foods? Interrupted time-series analyses from Tonga. BMJ Public Health Public Health, 4, e003508. https://doi.org/10.1136/bmjph-2025-003508.
This research was funded by the Royal Society of New Zealand Marsden Fund.
This record includes R programs written by Dr Andrea Teng for use with customs datasets provided by the Tonga Ministry of Revenue & Customs and the Tonga Department of Statistics.
Ethics approval was awarded by the Tonga National Health Ethics and Research Committee and the University of Otago Human Ethics Committee (D21/406).