Pass-through of the Oakland, California, sugar-sweetened beverage tax in food stores two years post-implementation: A difference-in-differences study.

Regarding changes in prices of untaxed beverages, one previous study of Oakland’s tax found a marginally significant price increase of 21% of the tax, driven by an increase in the price of diet soda [ 26 ], while the other found price increases of 33–78% of the tax for specific sizes of diet soda (<33.8oz and >1.25L) but not overall [ 16 ].

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