Can a Soda Tax Save Us From Ourselves by Greg Mankiw from NYT.
I think that Mankiw is very wrong on this issue. He said the following as an undesirable path after imposing soda tax: "... Taxing soda may encourage better nutrition and benefit our future selves. But so could taxing candy, ice cream and fried foods. Subsidizing broccoli, gym memberships and dental floss comes next. Taxing mindless television shows and subsidizing serious literature cannot be far behind..." These are exactly the policies I think we should do.