In part that can explain the reason why, although we have implemented free trade agreements, they have not been as good as they can become because the Government of Canada has actually impeded and impaired the ability of the Canadian private sector to be competitive with its counterpart south of the border because it has not done much with removing the interprovincial trade barriers that hamstring them so badly.
Can we infer the following?
All Canadian provinces want the Government of Canada to remove interprovincial trade barriers.

Available options: -Yes. -It's impossible to say. -No.
The answer is:
It's impossible to say