Sugary drink sales in Philadelphia fall 38% after city adopted soda tax, study

The tax might increase income but imagine the effect on the costs to the health system!

At least in a European country where health costs are socialised. Not sure how much they're socialised in the United States.

"Some residents crossed city lines to buy soft drinks outside the city"

It's interesting that residents would travel to another city to purchase the beverages. I wonder how much extra in travel (gas) each spent on average.