pros: they benefit domestic producers of that good. b/c there are less imports competing with them.
cons: they hurt consumers of that good through higher prices of imports or lower quality of domestic goods.
Another con is that domestic producers have no incentive to improve quality or reduce...
inflation/deflation are accounted for in Real GDP (which is typically the kind of GDP that is reported)
the answer to your Q is bullets 2-5 from here:
http://en.wikipedia.org/wiki/GDP#Limitations_of_GDP_to_judge_the_health_of_an_economy
luxury goods are elastic.
B/c you can make do without them if their price increases or your income falls., e.g. buy cheaper champagne or beer.
Cigarettes are not elastic b/c people are addicted to them.
wine producers will support it since positive cross-price elasticity means that increase of price of beer will increase demand for wine.
Hard liquor producers will oppose it, since their cross-price elasticity is negative, and increase in beer price will reduce demand for liqour.
If you want...