▁prices ▁of ▁tax ed ▁drink s , ▁with ▁full ▁transmission ▁for ▁soft ▁drink s ▁and ▁partial ▁transmission ▁for ▁fruit ▁ju ices . ▁The ▁evidence ▁on ▁purchase ▁responses ▁is ▁mixed ▁and ▁less ▁robust , ▁indicating ▁at ▁most ▁a ▁very ▁small ▁reduction ▁in ▁soft ▁drink ▁purch ases ▁( about ▁half ▁a ▁lit re ▁per ▁cap ita ▁per ▁year ), ▁an ▁impact ▁which ▁would ▁be ▁consistent ▁with ▁the ▁low ▁tax ▁rate . ▁We ▁find ▁suggest ive ▁evidence ▁of ▁a ▁larger ▁response ▁by ▁the ▁sub - sample ▁of ▁heavy ▁purch as ers . ▁F ruit ▁ju ices ▁and ▁water ▁do ▁not ▁seem ▁to ▁have ▁been ▁affected ▁by ▁the ▁tax ." ▁ ▁Hung ary ▁Hung ary ' s ▁tax , ▁which ▁came ▁into ▁effect ▁in ▁September ▁ 2 0 1 1 , ▁is ▁a ▁ 4 - cent ▁tax ▁on ▁food s ▁and ▁drink s ▁that ▁contain ▁large ▁quantities ▁of ▁sugar ▁and ▁salt , ▁such ▁as ▁soft ▁drink s , ▁con fection ery , ▁sal ty ▁sn acks , ▁cond iments , ▁and ▁fruit ▁j ams . ▁In ▁ 2 0 1 6 , ▁the ▁tax ▁has ▁resulted ▁in ▁a ▁ 2 2 % ▁reduction ▁in ▁energy ▁drink ▁consumption ▁and ▁ 1 9 % ▁of ▁people ▁reduced ▁their ▁int ake ▁of ▁sug ary ▁soft ▁drink s . ▁ ▁India ▁▁ 4 0 ▁percent ▁tax ▁on ▁sug ary ▁s oda ▁from ▁ 1 ▁July ▁ 2 0 1 7 ▁ ▁Ireland ▁ ▁S oda ▁tax ▁introduced ▁on ▁ 1 ▁May ▁ 2 0 1 8 . ▁The ▁tax ▁will