On 2014 Apr 14, Wilma Waterlander commented:

Thank you Andrew for your comment. My apologies that we didn't refer to this paper in our article. An important difference between this paper and ours however is that the tax in this study was added to various unhealthier items and not exclusively on soft drinks (as in our paper). The effects are therefore likely to be different, in particular when you look at substitution effects. Would be great to see more experimental studies on this topic!

On 2014 Apr 03, Andrew Brown commented:

This statement is incorrect: "However, there have been no experimental studies of the effects of price increases on SSBs or the effects on close substitutes such as diet drinks, alcohol or sugary snacks." See: "From Coke to Coors: A Field Study of a Sugar-Sweetened Beverage Tax and its Unintended Consequences" (http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2079840)

On 2014 Apr 03, Andrew Brown commented:

This statement is incorrect: "However, there have been no experimental studies of the effects of price increases on SSBs or the effects on close substitutes such as diet drinks, alcohol or sugary snacks." See: "From Coke to Coors: A Field Study of a Sugar-Sweetened Beverage Tax and its Unintended Consequences" (http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2079840)

On 2014 Apr 14, Wilma Waterlander commented:

Thank you Andrew for your comment. My apologies that we didn't refer to this paper in our article. An important difference between this paper and ours however is that the tax in this study was added to various unhealthier items and not exclusively on soft drinks (as in our paper). The effects are therefore likely to be different, in particular when you look at substitution effects. Would be great to see more experimental studies on this topic!