The global average of employers reporting difficulty in filling jobs is 34 percent, while in U.S. neighbor Canada it's 29 percent.
It's not clear what's contributing to the difference in employer responses internationally, but the weakening U.S. dollar and strengthening loonie -- the Canadian $1 coin -- has meant a higher cost of living in Canadian cities.
Vancouver, Montreal and Calgary all rank higher than Los Angeles, the most expensive city in the U.S., with the cost of living in Toronto equal to that of New York, according to the Worldwide Cost of Living Report published by the Economist Intelligence Unit Thursday.
According to the Manpower Group survey, the most difficult jobs to fill in the U.S. were those in the skilled trades -- carpenters, plumbers and electricians.
Holmes said she suspected that skilled trade jobs have become "aging professions" in which the number of new workers is not keeping pace with the number of those retiring or exiting.
"I don't think a lot of young people are waking up and saying, I want to be a plumber, though that's definitely anecdotal," she said. "Many high school students -- and their parents -- do not aspire for them to attend a technical school or get an apprenticeship for a trade. Many people want to go to a four year college."
ManpowerGroup 2011 U.S. Hardest Jobs to Fill
1. Skilled Trades
2. Sales Representatives
5. Accounting and Finance Staff
6. IT Staff
9. Administrative Staff