Unit 2: Alcohol consumption; taxation and promotion bans

The British Medical Association says that increasing tax on alcohol would help tackle binge drinking, acccording to this BBC clip
< http://www.bbc.co.uk/mediaselector/check/player/nol/newsid_6980000/newsid_6985700?redirect=6985769.stm&news=1&nbwm=1&bbram=1&nbram=1&bbwm=1&asb=1 >

a) What are the negative externalities associated with excessive alcohol consumtion?
b) What are the private costs associated with excessive alcohol consumtion?
c) What 2 suggestions do the BMA propose to cut alcohol consumption?
d) Evaluate the likelyhood that these policies would be successful if implemented