I'm skeptical, skeptical.  People against supply management fixate on price.  I'm not so sure price differentials with other countries when comparing a quart of milk, sorry litre,  varies greatly.  I did a survey once a few years back and the prices in Vancouver, Mexico City, Paris etc weren't outrageously different.  Further, what price difference there is goes to making the industry environmentally clean.  Finally, our cows are pure cows.  We don't pack them full of drugs.  Supply management works for me.