Bank of Canada Governor David Dodge

WASHINGTON — Bank of Canada Governor David Dodge says North America could one day embrace a euro-style single currency.

But to get there, Canada, the United States and Mexico must first tear down barriers to the free flow of labour, which he pointed out Monday have “gotten a bit thicker” in recent years.

Answering questions from the audience after a speech in Chicago, Mr. Dodge said a single currency was “possible.”