ale ▁to ▁estimate ▁re venue ▁from ▁a ▁s oda ▁tax , ▁depending ▁on ▁the ▁state , ▁year ▁and ▁tax ▁rate . ▁ ▁A ▁ 2 0 1 2 ▁study ▁by ▁Y . ▁Cla ire ▁Wang , ▁also ▁in ▁the ▁journal ▁Health ▁Affairs , ▁estimates ▁that ▁a ▁pen ny ▁per ▁ ounce ▁tax ▁on ▁sug ared ▁be ver ages ▁could ▁prevent ▁ 2 . 4 ▁million ▁cases ▁of ▁di ab etes ▁per ▁year , ▁ 8 , 0 0 0 ▁stro kes , ▁and ▁ 2 6 , 0 0 0 ▁prem ature ▁death s ▁over ▁ 1 0 ▁years . ▁ ▁In ▁ 2 0 1 2 , ▁just ▁before ▁the ▁city ▁of ▁Richmond ▁began ▁voting ▁on ▁a ▁s oda ▁tax , ▁a ▁study ▁was ▁presented ▁at ▁a ▁conference ▁held ▁by ▁the ▁American ▁Public ▁Health ▁Association ▁regarding ▁the ▁potential ▁effects ▁of ▁such ▁a ▁tax ▁in ▁California . ▁The ▁study ▁concluded ▁that , ▁given ▁that ▁s oda ' s ▁price ▁el astic ity ▁is ▁such ▁that ▁tax ing ▁it ▁would ▁reduce ▁consumption ▁by ▁ 1 0 – 2 0 ▁percent , ▁that ▁this ▁reduction ▁"... is ▁project ed ▁to ▁reduce ▁di ab etes ▁inc idence ▁by ▁ 2 . 9 – 5 . 6 % ▁and ▁CH D ▁by ▁ 0 . 6 – 1 . 2 % ." ▁ ▁A ▁ 2 0 1 3 ▁study ▁in ▁the ▁American ▁Journal ▁of ▁Agricult ural ▁Econom ics ▁concluded ▁that ▁a ▁ 0 . 5 - cent - per - ounce ▁tax ▁on ▁soft ▁drink s