This is a mailed in story that snakes back and forth but goes nowhere.  

Is Canada better off as Craig 1943 thinks when our dollar goes further in buying imports?  Or is Kothar right that a weaker dollar helps our less productive manufacturing sector sell globally.

I don't know the answer. Perhaps Poloz has a view, but he is not sharing it.  

We know trade wars and protectionism hurt consumers and if you believe Ricardo trade is more than a zero sum game.  So trade wars are not the best.

But if everyone trys to deflate their currency what does that mean?  Parkinson professes to be an economist, but writes meandering drivel.  The only thing about which I am certain is that he has no clue where Canada as a whole optimizes on a currency basis.