Canadian Prime Minister Mark Carney stressed his country's importance to the US economy on Thursday, urging closer cooperation as talks on revising the North American free trade agreement face roadblocks.

NEW YORK - Prime Minister Mark Carney is in New York City Thursday to meet with business leaders as the relationship between Canada and the United States remains rocky ahead

The prime minister sees his trip as an “efficient way” to tell American investors about the pitch Canada is making to the world. He suggested U.S.-based investors are newly…