The economists said concerns about damage from the renegotiation may be overblown, with the most likely result of the talks being an updated trilateral agreement after many months or years.
In the IPSOS poll, some 59 percent of Canadians said they were confident in their government's ability to renegotiate NAFTA in Canada's best interest. That compared with the 50 percent of Americans who said they were confident in the Trump administration's ability to negotiate in their country's best interest.
Mexicans were more wary, with just 40 percent voicing confidence in their government's ability to negotiate.
If negotiations fail, 50 percent of Americans, 59 percent of Canadians and 60 percent of Mexicans said they would prefer that NAFTA continue in its current form.
This article was provided by Reuters.